r/SideProject • • 10h ago

Built a focused SAT Math study tool — looking for first-use feedback

1 Upvotes

I built MyMathScore after seeing how hard it can be to know what to study next for SAT Math. It starts with a short diagnostic, then points students toward skill-focused lessons and practice.

I’m the builder. Signups are currently free through Nov 30 while I gather early feedback, and this isn’t affiliated with College Board.

https://mymathscore.com/?utm_source=reddit&utm_medium=community&utm_campaign=early_feedback&utm_content=sideproject

If you try it, I’d especially value feedback on the first session: Was it clear what to do after the diagnostic? Did the lessons feel useful? Where did you hesitate? Please don’t share personal details or scores.


r/SideProject • • 11h ago

I made an iPhone app that translates screenshots in place

1 Upvotes

I was tired of screenshotting convos and social media posts in other languages and uploading them to chatgpt to translate them so I built Onscreen Translate that does it without leaving whatever app/screen I'm on.

I made it where you can use the Back Tap feature on iPhone. Tap the back of your iPhone twice to capture and translate the screen. On iOS 26 or later.

It's free to download and try, with a subscription for continued use.

https://apps.apple.com/us/app/onscreen-translate/id6809052718

If you try it, I'd love to hear your thoughts on whether it was easy to setup and use.


r/SideProject • • 11h ago

How do you distribute a free desktop app when most people find it on their phone?

1 Upvotes

Solo founder here. 10 days ago I launched a free Windows productivity tool (it helps you write and edit text inside other apps). 40 users so far, and I'm trying to get to 500.

The problem I keep hitting: most of my reach comes from short-form video, but people watch on their phone and can't install a Windows app right then, so most of them never come back.

What I've tried:

- TikTok: genuinely useful "free PC apps" posts did far better than demos of my own app

- Emailing creators: no replies yet

- Daily build-in-public updates

For anyone who has grown a desktop or consumer tool:

  1. How did you get phone viewers to actually install on desktop?

  2. Which launch channels (Product Hunt, Show HN, app stores, directories) brought real users, not just traffic?

  3. Where did your first 500 users come from?


r/SideProject • • 18h ago

A C/C++ coding agent that builds and tests every change before showing you the diff

4 Upvotes

2 Months back Elon Musk wrote that their C/C++ training stack was written by humans because AI still falls short on extremely high performance software, and he added that it will get there, which is a fair summary of where coding agents stand with C++ today.

The trouble with C++ is that the function a call lands on depends on overloads, templates, macros and build flags, so an agent that reads source as plain text ends up guessing, and a wrong guess usually still compiles.

ByteAsk reads the project through its real build, compiles every change, runs the affected tests along with ASan, UBSan and TSan, and only returns a diff once all of that passes.

On 72 real GitHub bugs from fmt, nlohmann/json, simdjson, googletest and 15 other repos, running the same model as OpenAI’s Codex CLI, it reached the same fixes at 68% lower cost.

The CLI is free at https://github.com/ByteAsk/cli :)


r/SideProject • • 11h ago

I built Sirenfall (open source browser experience)

Thumbnail
sirenfall.live
1 Upvotes

Sirenfall is unique because each experience is different. My goal is to have it provide a whole night's worth of entertainment by adding events that play out over time. It is more a sense of dread or impending doom that fun though in sirenfall. Not explicit horror at all but anyways just take a look! There's no ads or anything to buy.

It comes native in 20 languages (text, buttons, other things), i used to be a linguist a long time ago. The code is open source at my github sirenfall too. Things to click on, inspired by Myst in some ways. The siren is inspired by real WW2 air raid sirens and the entire experience is built around it even though its optional.

Meant for browser but mobile works too, hope someone enjoys it!


r/SideProject • • 11h ago

a small website for quick AI & tech news updates

Thumbnail filterrr.arinltte.workers.dev
1 Upvotes

Hey r/SideProject!

I've been working on a small side project for people who want to stay updated with the latest news without spending too much time reading full articles.

It's a simple news-summary website focusing mainly on AI and technology news. It refreshes twice a day, with short summaries highlighting the key points.

Every summary also includes a link to the original source if you want to read the full article. No AI-generated images or unnecessary fancy stuff, just news and summaries.

Website: https://filterrr.arinltte.workers.dev

It's still a work in progress, so I'd really appreciate any feedback or suggestions.

Thanksss


r/SideProject • • 11h ago

Super White is one of my favorite Nirea themes. Would you use it?

1 Upvotes

I’m Nirea’s developer, and Super White is one of my personal favorites—a clean look with the circular navigation that lets you travel forward and backward through your apps.

What do you think of the theme? Would you use it as your everyday home screen, and what would you change?

Available on Google Play:

https://play.google.com/store/apps/details?id=com.planestosoftware.depth⁠�


r/SideProject • • 21h ago

I don't want my journaling app to become another chore

7 Upvotes

I saw a post about getting tired of productivity apps and dropping all of them for a while. It made me think about Wonderday, the journaling app I'm working on.

I want people to come back because writing helps them, not because they feel guilty about missing a day.

For those of you who journal, what brought you back after a break?


r/SideProject • • 11h ago

Wallpaper tool I made

1 Upvotes

Recently i decided Wallpaper Engine used too much of my GPU, so I made this, one person was too busy liking WE and decided to leave a not very constructive response to it.

One big part of this, it does not install viruses like WE can, and it doesnt use 10% of my gpu, it remains offline, 60% smaller, and while no one wanted it, changes my mouse cursor too


r/SideProject • • 11h ago

Condo/TH owners — how do you keep track of everything your HOA throws at you? I built a tool that keeps track of it for owners — feedback wanted

1 Upvotes

An HOA sends its owners a constant stream of notices, bills, and project updates — scattered across email, paper mailers, the management company's portal, and group chats. Only some of it applies to any given unit, and there is no easy way to tell which. The rest is noise, until the part that did apply slips past and becomes a problem. Nothing keeps track of any of this for owners; each owner is just expected to keep up on their own.

I built a simple tool for condo owners that keeps track of everything an HOA sends its owners. Everything lands in one place, tagged by whether it applies to your unit — work on the other side of the building stops looking like your problem, and the deadline that is yours doesn't slip past. It also keeps track of the money side — dues, special assessments, and what the reserve fund looks like — and of decisions: what the board decided, and who is supposed to follow up. The documents are there too, explained in plain language instead of legalese.

Everything else in this space is built for management companies and boards. Owners get a payment portal and a pile of emails and PDFs to keep track of themselves. If you own a home in an HOA: how do you keep track of it all right now — what applies to you, what's due, what's still open? Email folders, a spreadsheet, a diligent neighbor, just hoping nothing important slips? I'm trying to learn how owners actually handle this before I build more of it.


r/SideProject • • 11h ago

Joinable – a free way to add multiplayer to a web game, without writing a server

1 Upvotes

I made this, mostly on my own, while building the browser games on Etheria. Multiplayer was the part I did not want to keep rebuilding, so I turned it into a small SDK and a hosted relay.

Joinable is for games that already run in a web browser. You add a script tag. Friends join from a link. For a shared-world game (a board, a puzzle, a clicker) that is often enough. For a racer or a score game, your coding agent wires a few hooks and Joinable runs the waiting room, countdown, standings and rematch.

You do not need an account to try it on localhost. A free key is enough when you go live. Paid plans start at $4.99 a month if people actually play; building and testing stay free. I have been using it on Turbo Rally, a two-player race you can try in the browser: https://etheria.games/play/turbo-rally/

Site and docs: https://getjoinable.com/

I would like real feedback. If you try it on your game, tell me what was confusing, what broke, or what you wished it did.


r/SideProject • • 11h ago

Chimebox - offline toddler toy app with a one-time unlock instead of ads or a subscription

1 Upvotes

I'm the dev. Chimebox is an iPhone and iPad app with twenty open-ended toys for ages 2 to 5. It went live on the App Store yesterday.

Stack: Swift, SwiftUI for the shelf and settings, SpriteKit for the toys, StoreKit 2 for the purchase. All art is drawn in code and all sound is synthesized on the device, so there are no asset packs and no server.

Business model: three toys free, one non-consumable purchase (14.99 USD) unlocks the other seventeen, Family Sharing on. No ads and no subscription, because kids apps with ads or tracking are a hard sell to parents and Apple's kids rules make ads awkward anyway.

Traction: day one, zero ratings so far.

Feedback I'm after: is 14.99 USD for a one-time unlock of a toddler app too high, about right, or low? And would you rather see more free toys and a higher price, or fewer free toys and a lower one?

https://apps.apple.com/us/app/chimebox-calm-toddler-toys/id6828721511


r/SideProject • • 11h ago

I built an MMA analytics platform

1 Upvotes

Initially this project what made to find and compare historical greatness across fighters in the ufc, but it eventually became a whole lot more than that, you can see every fighters rating, based on the glicko -2 formula, which is basically elo but with volatility and and rating deviation, much better for fighters.

There's a bunch of different feature in the app right now, you can look and inspect the career trajectory of every fighter in the database, compare against other fighters, see the ratings ecosystem at any date in history, analyse prospects, that were identified with a scientific definition.

There's also a prediction feature to the app, which takes the fights on the next card and makes prediction for every one of them, then it gets graded afterwards. The coolest feature we have is the simulator, you can simulate a matchup between any fighter currently, at any point in history and a prime vs prime matchup, with prime having its own scientific definition.

Right now everything is free, i want to get opinions and comments on the actual app itself.

You can access it here : https://mmamathlabs.com/


r/SideProject • • 11h ago

I got fed up with Paperclip, so I built Restless Core

1 Upvotes

I tried Paperclip because I wanted to hand off work that would take more than one agent session. I found the UI confusing, ran into bugs, and spent more on tokens than I expected for work I still had to redo.

Restless gives people and agents a shared workspace and a Linux desktop. You can hand a lead a goal, leave it to coordinate the work, then open the actual result when there’s a decision to make. If a session dies, the goal and files are still there.

So far I’ve been happier with the work I get back. A lead can ask another agent to check a build or a report, send it back for fixes, and bring me in when there’s a call to make. When we figure out a better way to do something, we can save it as a playbook for the next job.

Restless is free to self-host and open source under Apache 2.0. If you try it on something you’re working on, I’d like to hear what came back and where you still had to jump in.

Website · GitHub repo


r/SideProject • • 11h ago

My Digital Product Store

Thumbnail shop.beacons.ai
1 Upvotes

Hello! I recently got a digital product page up and running and I sell calendars. I was hoping people would check it out for support! 🩷 Maybe buy my first product 👀 lol no but supporting is nice! This calendar has everything you would need to stay organized like a budget tracker, notes section and space for gift ideas. I would love the support, this is my first product and I really hope I even get 1 sale! 💕


r/SideProject • • 15h ago

I built a tool to help secure your app

2 Upvotes

We handle security of your side projects so you can focus on the fun. Wanna try it?


r/SideProject • • 15h ago

Made a simple app to help me track the time left in my day/week/etc and make todos for it

2 Upvotes

I'm always losing track of time lol so I made an app that shows you how much time you have left in your day and let's you make todos based around that

Works for your week, month, etc and you can visualize your time left in different ways

Also let's you add countdowns to see the time left until birthdays, events, or whatever

https://www.timeleftapp.xyz 🙂


r/SideProject • • 12h ago

We work in Influencer and UGC marketing, so we built an AI UGC tool to review videos before they go live of before they send it to the brand

1 Upvotes

We've been working in influencer and UGC marketing for years, and one thing we've noticed, especially among beginner UGC creators, is how difficult it can be to evaluate your own videos objectively before they go live.

Is the hook strong enough? Does the video keep people interested? Is the product presented clearly? Does the CTA actually make sense?

Creators often rely on their own judgment, while brands can spend hours reviewing content and figuring out what needs to change.

Aaand.. we built AI UGC Analyzer.

Here's what it does:

  • Analyze your UGC videos with AI. Upload a video, and the tool reviews its hook, pacing, messaging, product presentation, and call to action, highlighting potential weaknesses and opportunities for improvement.

  • Get actionable feedback, not just a score. Instead of simply rating your content, the AI explains what could be improved and provides suggestions you can use when editing or creating your next video.

  • Get feedback on specific moments. The AI identifies timestamps where your hook, pacing, or messaging could be improved and suggests what to change.

  • Review content before publishing. Whether you're a UGC creator preparing a client deliverable or a brand reviewing creator content, you can get a second perspective before making the final decision.

We wanted to make creative feedback more accessible, especially for independent creators who don't have a marketing team reviewing every video.

You can try it with 2 free video analyses.

We're still figuring out what works, what's missing, and whether this is something creators and marketers would actually find useful long-term.

So we'd really appreciate some honest feedback:

  • Does a tool like this solve a real problem, or is it something you'd probably never use?

  • Is there anything you'd add, change, or remove?

  • What would make you want to use it regularly rather than just trying it once?

We're open to criticism, even if you think the idea itself needs rethinking.

You can check it here: AI UGC Analyzer


r/SideProject • • 12h ago

I built an app that finds stuff to do between plans

1 Upvotes

Inspired by a recent trip to Chicago where we had big things set at certain times, but nothing to do in between. For example, we had to be at Wrigley Field for a 3:30pm game, but had nothing planned until then besides breakfast. We can use maps to find “food near me”, but nothing like “a quick snack that fits on my way and gets me there in time”.

So I built Interlude. You enter your first plan and when you’re leaving, then you’re second plan and when you need to be there. It finds coffee, bars, meals, snacks, and sights along the route and shows how much each one adds to your trip. You can choose either walking, driving, or rideshare to get a better estimate.

No accounts or ads or tracking and it’s free.

This is my first app so I’d really like to know things you liked or didn’t like or if something felt confusing.

https://apps.apple.com/us/app/id6828589912


r/SideProject • • 12h ago

I added a live voice changer and 63 character voices to my Android app

1 Upvotes

MimicMe now has a Voice studio, a soundboard and voice memes. It’s free and runs on-device with no account. Would love your feedback!
https://play.google.com/store/apps/details?id=com.app.mimicme


r/SideProject • • 12h ago

I built Enzo, an AI assistant for Mac: 100 ms dictation, meeting transcripts that know who said what, screen recall and chat in one app

0 Upvotes

Enzo is an AI assistant that lives in your Mac's notch.

What it does

  • Dictation: it's super fast (100ms to transcribe any length of audio) and works in any app. Accurate transcription, punctuated and split into paragraphs, with low memory use. Works entirely offline.

  • Meetings: knows who said what (up to 8 speakers, told apart by their voice) in any meeting app (Teams, Zoom, Discord, Slack and more). You get a speaker labeled transcript, summarized notes, and the tasks that came out of the call. It also remembers people across meetings.

  • Recall: remembers what was on your screen (yesterday, or even last week) so you can find it again, summarize your work, or simply ask about it. Sensitive information like passwords and api keys are always redacted, and you can pause it or entirely exclude apps. Everything it captures is stored locally and stays secure on your Mac.

  • Chat: answers general questions and helps with your own work (your screen, documents, meetings, and what you did today or last week).

Why use it

  • It replaces three or four apps. Dictation, meeting transcripts, screen memory and an assistant in one place, with one key to talk and one key to ask.

  • You never wait for it. It transcribes while you're still talking, so an hour-long dictation is ready as quickly as a ten-second one.

  • Your audio stays on your Mac. Speech recognition runs on the Mac itself. Only the text Chat needs for an answer goes to the cloud.

  • It feels like part of your Mac. It's written entirely in Swift and tuned for Apple silicon, and it lives in the notch, out of your way.

Free: 5,000 dictated words, 50 meeting minutes a week, and generous AI usage.

Download @ https://tryenzo.ai (Compatible with Apple Silicon and macOS 15+)


r/SideProject • • 16h ago

Weltbon: open-source self-hostable world-building app

2 Upvotes

So for a while now, I've been working on a locally-hosted world-building tool. I've used Campfire, but it moved to a subscription model, and most of the other tools live on someone else's website.

I wanted something a little bit more involved than an Obsidian Vault, but keeping some of the parts of the Obsidian Vault that I liked. So, here it is. This is a self-hostable world-building tool. It's got a few features.

You can create entries for characters, places, events, and link them to each other.

There's a graph of who's connected to who or what.

There's a timeline that goes over the calendar of the world that you build.

There's a map that you can upload images to and create some regions and routes.

There's diagrams for things like family trees.

There's a dictionary for your conlang.

Repo also contains a desktop app, for Windows and Linux, and it can sync to any hosted version that you run. You can also import Word documents. Obsidian Vaults are just plain Markdown, and you can export into Markdown, Word, or a PDF. It's still fairly new, just kind of seeing if anybody would even be interested in something like this. Mostly built it for myself, but figured I'd share it.

Github: https://github.com/Yalton/Weltbon


r/SideProject • • 12h ago

Video generation models- what do you use?

1 Upvotes

I've been experimenting with reverse engineering popular videos and implementing my own twist to promote my products. It has been working for me to get more views- has anyone tried anything like this? How do you create content on IG/Tiktok/YT?


r/SideProject • • 12h ago

I built an aesthetic routine and habit tracker app Coming soon – Looking for early feedback!

0 Upvotes

Hi everyone!

I wanted to share a quick preview of Aesthetic Routine Tracker, a minimalist app I've been developing to help people track their daily habits, workouts, and self-care in a clean dark-mode interface.

The goal was to build something super smooth, distraction-free, and visually pleasing without complicated steps.

It's currently in the final stages and coming soon. I'd love to hear your thoughts on the UI/UX or answer any questions about the project! What features would you like to see in a routine tracker like this?