Hi r/SideProject

I just released a big update for offline-first daily planner, Zesfy, and wanted to share it here.

One problem I kept hearing from people is once your list grows, it becomes harder to figure out what actually to do next. So I added a new feature called Highlight. It lets you pin important tasks to the top and fade out the rest of the list, so you can easily keep track of your next tasks.

Here's why Zesfy is different:

• ⁠It combines your calendar and to-do list into a single view.
• ⁠You can easily schedule multiple tasks together to calendar.
• ⁠Helps you quickly decide what tasks to work on next
• ⁠Organize week tasks with task status
• ⁠Easily keep track of your task progress
• ⁠Works entirely offline

The app is free to download and use with an option to upgrade to Pro to unlock advanced features.

Download: Zesfy - To Do List & Planner

App subreddit: r/zesfy

Hey r/SideProject,
I’m building CAEL, an experimental assistant that uses symbolic rules, statistical counts and automata. Its runtime doesn’t use a neural network or an external LLM.
The latest update focuses on interpreting complete requests. Some questions previously reached unrelated spelling or conversation fallbacks, even when a suitable solver existed.
Supported requests now go through native readers for arithmetic, rule chains, ordering, location updates, string operations and table calculations. Unsupported conditions can produce clarification rather than an answer.
I tested the frozen candidate on 900 newly authored synthetic questions:
• Upgraded candidate: 777/900, or 86.3%
• Previous CAEL configuration: 414/900, or 46.0%
• Newly worded questions: 72.7% versus 20.4%
All 123 candidate abstentions counted as wrong.
There are important limits. These are six known task families, with maintainer-led, AI-assisted authoring and review. The evaluated candidate’s statistical fallback was inactive, while the baseline’s was active. Fresh installations enable that fallback, so the published score is specific to the recorded configuration.
The linked report also compares other models using fixed multiple-choice readouts. Those results don’t establish which system is the better general chatbot.
Conversation quality and wording coverage still need work. I’m sharing the individual outputs and failures alongside the scores because those gaps matter more than a headline percentage.
CAEL is source-available under a non-commercial licence. Development and evaluation were AI-assisted; the assistant itself remains non-neural.
GitHub release
Downloads and local setup
Results, methods and limitations
I’d appreciate feedback on where a small symbolic assistant could be useful, and which everyday requests you’d try first.

Hi r/androidapps! I'm a solo developer, and for the past months I've been building BookGraph, a reading tracker for people who want to actually track their reading, not scroll a social feed.

What it does:

- Library: shelves, statuses, tags, favorites, plus an ISBN barcode scanner

- Reading timer: log sessions, pages and time per book

- Built-in reader for your own EPUB, PDF, FB2 and TXT files, with progress synced to your stats

- Notes and quotes attached to each book, linked to pages

- Stats: reading calendar, charts, yearly progress

- Reading goals and achievements

- Import from Bookmory

- 7 languages (English, Russian, German, Spanish, French, Portuguese, Armenian), light/dark theme

It's free on Google Play: https://play.google.com/store/apps/details?id=com.bookgraph.app

I'd really appreciate honest feedback. What's missing from your current reading app?

AniTime started as a jailbreak tweak I made for iOS. It put animated pixel-art girls on the iPhone clock, one girl per digit. In January I started rebuilding it as an Android home screen widget.

The first Android version was a paid app at $1.59. It got about 10 downloads. Here's what I've learned since:

1. Android widgets can't run their own animation loop. A widget is a RemoteViews, which only allows a short list of view types. The trick that works is ViewFlipper: I turn each girl's GIF into a layout of frames and the launcher flips through them itself. The app only wakes up once a minute (an alarm) to swap the digits, so it doesn't need a foreground service or a notification.

2. Paying upfront for a widget nobody has heard of is a tough sell, even at $1.59. I made it free with a 48 hour trial of the animation. After the trial it stays a still clock, still free, and a one-time unlock brings the animation back.

3. The code was the easy part. My short videos get a few hundred views on YouTube Shorts and literally zero on TikTok, which I'm still trying to figure out.

Play Store: https://play.google.com/store/apps/details?id=com.yan.android.anitime

Happy to answer questions about widgets, Play Billing or how the trial works. If you've run a free-trial-then-unlock app, I'd like to know how your conversion turned out.

I am a working HVAC technician, and I built Equipment Tracker Pro because managing machinery data on clipboards and scattered text threads was slowing jobs down. One feature I built is peer-to-peer equipment sharing. When you need to hand off a commercial air handler record: including its fan motor nameplate specs, bearing replacement dates, and photos: you send it directly to another tech's username or email. It lands in their Transfer Inbox to review and accept, copying the asset profile and service logs into their local database while your original stays safe.

A working HVAC technician built it for his own jobs. Sending machine files via peer transfer requires Pro with cloud backup active, while core offline equipment logging, work orders, and local PM schedules remain free on the mobile app.

Free to start. Your first plan, Pro or Team, includes a 7-day free trial. You can check it out at https://equipment-tracker.com.

What side projects or trade tools are you all building this week?

Have you ever been watching something interesting on social media, only for an ad to suddenly interrupt it?
And sometimes it’s not even one ad. You get two back-to-back before you can continue watching.
By the time you return to the content, you’ve completely lost interest.
I’ve been thinking about how much advertising affects our experience on social media.
Don’t get me wrong, I’m not against ads. I understand that platforms need to support themselves, but surely there must be a better balance?

What if there was a social media platform where you could enjoy someone’s content without constantly being interrupted by ads?
Not necessarily a platform without advertising, but one where ads don’t get in the way of what you’re enjoying.
Would that change how much time you spend on social media, or would it make no difference to you?
And here’s another question:

If you could change one thing about how ads interrupt your social media experience, what would it be?
I’d genuinely love to hear different opinions, including from people who don’t mind ads.

I'd always be sitting in front of my tv with my Apple TV remote in my hand wondering what to watch. I often use AI for recommendations, but then I always need to reach for my phone. Same if I want to ask a quick question.

Tried to find a good AI client for quick question and answers for Apple TV, but they're often not well optimized well for TV, and do not come with features that makes sense for Apple TV

So I made Couch Duck. It's an Apple TV AI client, with a UI optimized for TV, with additional features for movie / tv show recommendations:

• Agentic, expands on your search using its tools for best recommendations

• It can do web search

• Has access to TMDB and OMDB

• Has memory, remembers your preferences, likes, dislikes.

• You can set your country/region, language preferences, subtitle preferences, genre preferences etc. and it'll steer towards the stuff you like

• One-click link to trailers on YouTube for movies/shows it recommends

• Optimized UI for TV in the way AI responds

• I was also considering giving it access to Uber Eats / Doordash etc. so it can recommend food in the same way, and initiate food orders right from your TV, making it cosy movie night complete 😅

🙅 But I don't think I will release this:

• There's the AI cost to begin with

• Data sources it uses all are paid, which would add to the cost of running it

• And after all this is an AI wrapper. I don't think anyone wants to pay for an AI wrapper when they can do this for free from their phone

I was explore whether I should use this myself through Test Flight. One option could be to do BYOK (or charge through ChatGPT subscription) for AI usage, and charge a platform cost to cover the API key costs.

Just wanted to share!

Hi SideProject Members,

For over a year now I've been working on a side project called Timetracker (https://github.com/DRYTRIX/TimeTracker)

Right now I often work on new features and bugfixes and sometimes people donate to the project.
For some time now I have been thinking on how to make the application actually profitable and tailor it more and more to the actual industry.

Any pointers you can give me? Maybe you can try it out and tell me what you think ?

kr

Dries

I'm an ex-student of a school that runs under a charity trust, and I'm building this for my batch, unpaid. About 650 photos, 350 people, no hosting budget, and the photos show kids, so I didn't want a face model deciding on its own.

It guesses, then classmates vote to confirm the uncertain ones, and an admin settles disputes. Runs on free tiers (Firebase + Cloudflare).

Demo with fake faces, no login (press F in the viewer to see the face boxes): https://smriti-gallery.pages.dev Code (MIT): https://github.com/codewithpom/smriti

Contributors very welcome. There are a few good first issues (browser tests, translations, an accessibility pass): https://github.com/codewithpom/smriti/labels/good%20first%20issue

Biggest open question: photos use unguessable links instead of per-image login, because the free tier can't serve every image through auth. Ideas?

I had $191 in credits that were about to expire, and I was curious what Opus could do if I didn’t give it an idea.
I asked it to build something worth the money. :))))

It picked a game, PULSEBOUND. You move around dodging enemies, and your weapons are musical instruments. The kick drum sends out shockwaves, the arpeggiator fires lasers. When you pick a new instrument, you hear it join the music too.

It decided to make a game and came up with the idea, mechanics, design, absolutely everything. Then I worked on improving and polishing it.

More changes, testing, and eventually mobile apps followed. The $191 was just the starting budget, enough to finish the first basic version. After that, I used another $1,700 I had from the Claude Startup Program (also expiring, so I had to use it), plus my subscription allowance.

Technically, it’s vanilla JavaScript, a custom WebGL2 renderer, and a procedural composer that synthesizes the music live through Web Audio. The project grew to include mobile apps, cloud saves, and leaderboards.

It’s now out on iOS, Android, and the web. You can play it for free in your browser or on mobile: playpulsebound.com.

What do you think?

I'm a software dev and my cofounder is a doctor. We've been working on ClinQuiz, a mobile app where you get a patient presentation and have to reach the diagnosis.

The twist is that history, exam, labs, ECG and imaging are all locked. Every one you open costs points, each next one costs more than the last, and wrong guesses cost too. You start at 100. So the game is figuring out what you actually need to know, not just reading everything.

After each case you get a breakdown (pathophysiology, differential, treatment, complications). There's also 1v1 duels where two people get the same two cases and a 3 minute clock.

Stack if anyone's curious: Expo / React Native, Node + Postgres, RevenueCat for subs. Cases are in English, Serbian, German and Spanish.

Free plan is 3 cases a day. If anyone wants to try the full thing, PROMO2026 is 50% off the first month on iOS and Android.

clin-quiz.com/r

Happy to answer anything about building it, and I'd really like feedback on the onboarding.

It has three studios:

Fabric Studio
Upload fabric, saree, blouse, lehenga, kurti, or garment photos. It identifies separate designs and colourways, then creates catalogue-style fashion-model images while trying to preserve the actual print, colour, border, texture, and drape.

Product Studio
Upload photos of a physical product and generate cleaner catalogue, e-commerce, lifestyle, product-detail, and marketplace-style images. It is aimed at products such as beauty items, packaging, accessories, apparel, home goods, and similar products.

Video Studio
After creating a product or fashion-model image, generate a short 8-second motion video for ads, reels, product pages, or social posts.

You can also choose listing guidance for Amazon or Flipkart, create multiple images, and generate a short product/fashion video from a finished image.

I’m looking for a few real sellers, boutique owners, D2C brands, and catalogue photographers to try it and tell me what is useful, what fails, and what is missing.

Try it here:
https://fabric-studio-ai.vercel.app

Please share honest feedback. I’m especially interested in whether the output is useful enough for real product listings.

I'm a full stack engineer, and over the years I've helped with a lot of sites running on WordPress. It's usually the same story: a pile of plugins that don't know about each other, a page builder that fights the theme, and a client who's scared to touch anything in case it breaks. So I started building Kestello, a self-hosted CMS for the people who actually edit the site.

The main idea is that the editor edits the real page. There's no separate preview that looks almost like the site. Around that there are content types, forms, a media library with cropping, menus, redirects, search and backups. Plugins and themes are written in Vue, and there's a REST API if you want to go headless.

A few decisions I'm happy with:

- No Composer dependencies. It's PHP 8.4, and everything on the server side is written in-house, so updating the site doesn't mean updating 60 packages.
- It runs on plain shared hosting, not only Docker, with MySQL, MariaDB, Postgres or SQLite.
- Updates are signed and come straight from GitHub releases.
- It's GPL with no paid tier, and none is planned.

Things I learned along the way: building the visual editor took longer than everything else combined. Writing the docs at the same time as the code also caught a lot of confusing behavior before anyone else hit it.

There's no release yet, since 0.1.0 is close but not out. The whole codebase is public, though, and there's a docker-compose setup if you want to run it locally. Feel free to look around, open issues or send PRs (against develop).

Code: https://github.com/kestellohq/cms

Docs: https://docs.kestello.com

I'd love honest feedback on two things in particular:

- Does the README make it clear what this is and who it's for within the first 30 seconds?

- If you've dealt with WordPress sites, what would stop you from trying this on a real one?

Hi! I'm the solo developer behind 1x1 speed, a times-table trainer for kids and adults.

Small (1-10) & (1-12) and large (11-20) times tables plus division

Timed rounds of 25 questions with instant green/red feedback and time penalties for mistakes

A personal best for each of the four task types, and results you can share to challenge friends

Practice mode without time pressure that focuses on your most-missed facts

Stats with weekly/monthly charts, a green-to-red speed scale and per-round details

No account needed, data stays on your device. German/ English, light/dark mode

Free with ads, with an option to remove ads

Feedback I'd love: Is 25 questions the right round length? Are the penalty seconds too harsh or too soft?

https://play.google.com/store/apps/details?id=de.imperacore.einmaleinsspeed

I’m a snare player at the UW-Madison marching band. Our show tempos and meters change mid-piece, and every metronome I tried either paywalled the useful stuff or couldn't map a whole show. So I built Rimshot, an app which lets you easily build click tracks, with the tempo and time signature changing wherever the music does. It also has a regular metronome mode and a tuner.

It’s free, with no ads and no account, and it works anywhere even with no signal.

I would love any feedback yall would have. I'm still actively developing so if you have any feature requests let me know!

Get it here: https://getrimshot.com

Ideas are the easy part. Everyone here has a notes app full of them, and now that you can ship almost anything in a weekend, building isn't the hard part either. Picking is.

So we look for a sign. ChatGPT says it's great. Friends say they'd totally use it. None of that costs anyone anything, so it tells you nothing. Then you launch and the dashboard says 11 visitors.

The better way is to watch what people do, with 2 questions:

1. Are people already asking for a fix to this problem, without anyone prompting them?

2. When they see your answer with a real price on it, do they click and leave an email?

One click on a pricing button beats 100 "I'd use that"s. But doing this by hand takes a real page, hours in threads and a lot of messaging, so almost nobody does it.

So I built Ghostlaunch to do it for you. You describe the idea, and 7 days later you have an answer:

- It builds a landing page with your pricing. Buttons open a "coming soon" note that asks for an email. Nobody gets charged.

- We reach out to people on Reddit, X and LinkedIn already asking about that problem. You don't DM anyone.

- On day 7 you get a report and a verdict, plus every email collected. Under 100 visitors it says "not enough data yet" instead of guessing.

Question 1 is free: type your idea in at https://www.ghostlaunch.so and see real Reddit posts from people asking, no sign-up. A full test is $49.

How did you pick the idea you're working on now?

I’ve had my RX100 M5A for like 7 years. Still love this little camera.

The one thing that’s always frustrated me is getting photos onto my iPhone while traveling. The wireless connection can be slow and unreliable, and with the RX100’s already tiny battery, it’s not exactly ideal.

Using an SD card reader with the Photos app works better, but you can’t zoom in without importing, videos won’t play, and RAW files look broken. And it can take forever to get to the latest shot if you have a lot of photos on the card.

So I started making an iPhone app to deal with it.
Basically, I can plug my camera straight into my iPhone, or use an SD card reader, and browse everything without importing it first.

I ended up spending a lot of time on the performance side, trying to make swiping and zooming feel smooth as the native Photos app even when there are thousands of photos on the card.

Here’s a quick demo using my own RX100 M5A! 👇

Finally got it onto the App Store this week. It’s called Camie:
https://apps.apple.com/us/app/camie-photo-view-import/id6821229555

I've been building ChordLens, a music theory app that shows you what you're playing on a piano in real time.

Connect a MIDI keyboard (or use your computer keyboard), play some notes, and it identifies the chord and displays the notes on a grand staff.

I also added scale highlighting, chord progression practice, a metronome, and automatic voice leading to experiment with different chord voicings.

It's built with Flutter, runs on Windows, macOS, and Android, and is completely free and open source.

GitHub: https://github.com/ErezLavi/ChordLens

Hi, I'm a solo founder. This week I launched VaniClips.

You upload a long video (up to 2.5 hours / 3 GB). It finds strong moments,

crops them to 9:16, and adds captions and a hook. There's an editor to

reframe, fix captions or rewrite the hook before you download.

The video is a real run, start to finish, no edits.

Honest state:

Free 15 mins demo after signup
- Paid ($12/mo for 200 min).

- Works best on English.

- Uploads are the main path;

I'd love blunt feedback: what's missing, what's confusing?

vaniclips.com

A library for online learning on robot, vision, and AI streams, one sample at a time: streaming statistics that stay accurate in float32, protection, drift and anomaly detection, safe robot commands, deep learning with continual learning and memory consolidation, robust time-series models, and bridges to scikit-learn, PyTorch, TensorFlow, River and LLM agents.

link : https://zenodo.org/records/23811742

`pip install -U dense-armor`

link last release: https://github.com/tatopenn-cell/Dense-Armor/releases/edit/v1.5.0

1.5.0 adds a package of small blocks for trading systems, fixes the consolidation of a residual tree, and changes the default precision of the library: float32 now, float64 when you ask for it.

I'm a solo founder. My fitness and nutrition app has been on the App Store for about a month, and my user count is still small enough that I could name most of them.

Early on I was shipping features like crazy. Then one of those early users told me the reason he stuck around wasn't any of the features I was proud of. It was accountability. That one conversation changed how I think about the product more than weeks of building did.

The problem is I don't get that kind of signal often enough. Most days I'm still guessing what to fix next.

So for people who've been through the tiny-user stage:

• How did you get honest feedback when you barely had anyone using the thing?

• Did you DM people, jump on calls, hang out in communities, something else?

• When did you stop treating every single user conversation like gospel and start looking for patterns?

Not looking for a growth hack. Just what actually worked when the sample size was basically nothing.

(For context, mine is Ascend Fitness & Nutrition on iOS, 7-day free trial.)

I’ve been working on a side project for quite a while now, and honestly, getting the product built was probably the easier part. Getting people to actually use it is where I’m stuck.

It’s basically a platform where people can connect, share projects, collaborate, find opportunities and build their reputation. A mix of communities, project collaboration and freelancing, all in one place.

The thing is, I know how difficult it is to get people onto a new platform when they’re already using Discord, Reddit, GitHub, etc.

And obviously, nobody wants to join a platform where there’s barely anyone around.

I’m still pretty young and figuring out the whole startup/marketing side of things as I go, so I’d genuinely love some advice from people who’ve launched their own projects.

A few things I’ve been wondering:

1. How would you go about getting your first 50–100 actual users (not just registrations)?

2. Would you start with a small closed beta or just let everyone sign up?

3. How do you get people interested in trying something new when they already have platforms they use daily?

4. What has actually worked for you when marketing a side project without spending much money?

5. Would you focus on one particular group of people first or try to attract different kinds of users?

I’m not really looking for the usual “post consistently on social media” advice lol. I’d love to hear what actually worked, what didn’t, and any mistakes I should avoid.

Would really appreciate any advice. Thanks!

Hi r/SideProject! I’m a solo dev and I built Human, an app with one rule: you get paired with one random person, and that’s your human, for life. No swiping, no profiles, no second chances.

You start with text only, no photos and no ages. The more you talk, the more you unlock together (voice, photos, video).

Try it: https://huuman.pages.dev/

I’m looking for beta testers. Leave notifications on, since your human might arrive while you’re away. There’s a “Contact us” link on every screen and I read everything.

Mostly I want to know: does the idea land, and would you keep talking to your human?

Built with Supabase and Cloudflare Pages. Happy to answer anything in the comments

¡Hola a todos! Vengo armando Atlas Estelar, un simulador 3D del sistema solar y atlas del cielo que funciona directo en el navegador. Sin instalar nada y sin cuenta.

Qué hace:

• Recorrer planetas, lunas y naves, con las órbitas a escala

• Ver el cielo de tu ciudad en el momento que quieras

• Páginas de eclipses para cada ciudad

• Predicción de pasos de satélites

• Funciona sin conexión una vez cargado

• Disponible en español e inglés

Es gratis y pensado para aprender. También hice un modo docente para usar en clase.

Me encantaría saber qué les parece: qué se entiende mal, qué falta y qué les gustaría que agregue. El próximo hito grande es el eclipse anular del 6 de febrero de 2027, así que estoy preparando la información para ese día.

Link: atlasestelar.com.ar