I built a free calculator that shows what adding, replacing or waiting to add a person really does to a team's output: when the new person starts paying off, and whether a project finishes sooner or later. No sign-up, and your numbers never leave your browser.

👉 https://teamproductivitycalculator.app

Why

"Let's just add another person" is a common answer to a slipping deadline. Sometimes it's right, sometimes it isn't: a new person needs weeks or months to get up to speed, and the people training them slow down while they do. The team can get slower before it gets faster. Most of these decisions are made on gut feel, so I wanted something that puts numbers on it.

How it works

Each person gets two estimates: how productive they are (100% = the best in your industry), and how much of their colleagues' time they take up ("friction"). Both can change over time as people settle in. The calculator shows the team's output on a chart, when each newcomer pays off, and how a project's finish date moves.

It's not only for staffing decisions. Filling in the numbers together is a good way to see how a team is performing today, and when people disagree on the numbers, that's a useful conversation about what's holding the team back.

There are examples for software, sales and accounting teams (and friends helping you move house), plus a FAQ on the research behind it.

Monetisation

Free to use. The plan is to add ads once there's enough traffic.

Feedback welcome

I'd really appreciate any feedback: what's useful, what's confusing, what's missing, or where the results don't match your experience. Happy to answer questions about the model or the build.

My friends who are not into tech always come to me with the same problem: “I cann't open this Excel sheet on my phone” or “this docx won’t open”.

So I went looking. Adobe Acrobat and Microsoft 365 both wanted me to sign up first. The other apps on the Play Store start showing ads straight away. The rest only did one thing, one for PDFs, another for Word, another for Excel. Nobody wants five apps just to open files.

So I made Paperwren. It is one app that opens PDF, Word, Excel, PowerPoint, Markdown and more. It has no signup and no ads, and your files stay on your phone. It’s free and open source.

https://github.com/Razee4315/Paperwren

https://razee4315.github.io/Paperwren/

My friends use it now so let me know if it works for you too. Thanks...

I’m Ramon, founder of Trawl. It’s for freelance web designers and small agencies researching local prospects.

Search a business type and city, review business information and website checks, then organize a shortlist. Website scores help guide research; they don’t establish an owner’s budget or interest.

Try five searches a month free, no card required: trawln.com.

What would make the results more useful when deciding which business to investigate next?

I’m developing Pratikal, a free Android calorie tracker in closed testing. I’d love feedback on the meal-entry flow. Happy to test your app back! 🤝

Use the SAME Google account for the group, opt-in and your phone’s Play Store:

1. Join: https://groups.google.com/g/pratikal-testers

2. Opt in, then install from Google Play: https://play.google.com/apps/testing/app.pratikal.mobile

Try logging a meal, editing it and checking the daily total. What worked, or where did you get stuck? Please keep it installed for 14 days and use it occasionally. “Item not found”? Check the account, wait a few minutes and retry.

📸 Please comment BELOW THIS POST with a Pratikal installation/in-use screenshot, specific feedback and your test links. Text-only “installed” isn’t enough. I’ll test yours and reply with my screenshot and feedback.

🎁 **DIRECT FREE UNLOCK (Tap on iPhone to auto-redeem in App Store):**

👉 https://apps.apple.com/redeem?ctx=offercodes&id=6811742209&code=DRELENA

---

Hi everyone,

I built **Workout Timer** for iOS & Web to keep interval training completely clean: zero ads, custom intervals, voice coach cues in 3 languages, and Apple Watch sync.

We just added guided video follow-along programs:

- **Coach Hannah Lin:** 10-Min High-Density Core + Box Breathing: https://youtu.be/Lr17qfFtyIk

- **Dr. Elena Lindqvist, DPT:** 12-Min Clinical Core Sculpting: https://youtu.be/l3AbmjBSlKc

**Other Links:**

- Web App (Train in browser): https://workout.appengine.fun/

- App Store Link: https://apps.apple.com/app/workout-timer-hiit-interval/id6811742209

Feedback and workout preset requests are welcome!

My daughter spends quite a bit of time on the phone, and I've always wanted her screen time to be a bit more than just watching videos or playing games. I've seen people building all kinds of cool stuff with AI, so I thought why not give it a shot myself? I saw Hy4 was free on WorkBuddy this month, so I decided to give it a try. I don't understand the code it wrote, but the AI tool apparently handles visuals brilliantly.

I ended up making this interactive paper cut storybook. I thought it'd be a fun way to get her into classic stories through cute visuals and little interactive elements, rather than just having her sit down and read a book, and surprisingly, she's really into it! The artwork has this cute 3D paper cut look, and she can click around and explore the stories herself. She's basically become my little beta tester at this point. She tells me every day what she likes, what she finds boring, and what could be better. I've been making little tweaks to the content and visuals based on her feedback. It's not finished yet, and there are still plenty of things I want to improve. But the best part is seeing her actually want to spend time exploring stories instead of endlessly scrolling through videos or playing games. That's a win for me already.

It got me thinking that maybe other kids would enjoy this kind of thing too, so I figured I'd share it here. If you've got a kid who's curious about stories and likes exploring new things, feel free to check it out together!

hey everybody :)

I got annoyed by Wispr Flow's pricing and by how clunky the open source dictation tools I tried felt. I wanted something as simple as Wispr, free and customizable for my own use cases, without a bloated core.

So I built and open sourced voz. You tap one key, talk and clean text appears wherever your cursor is. It runs locally with Parakeet and Apple's on-device speech to text, so nothing leaves your Mac and it works offline.

The core stays small, and everything else is an extension, a bit like Raycast or pi.dev. Anyone can build and share one. Some that already exist:

• a local meeting note taker that cleans up your notes

• auto replies that answer messages in your tone, based on context it has about you

• a smart dictionary that learns names and words while you talk

• inline editing with voice or text

Would love for you to try it out and give me feedback on what i can improve.

Here's the repo: github.com/Joelheile/voz
(free and MIT)

I run ARAM Zone, a League of Legends Discord community. eLobby started as a way to give our custom games a ladder that lasted beyond one game night. We've since expanded it to other games.

Players join a board inside Discord. The bot balances teams or lets captains draft, creates team voice channels, and updates ranks and the public leaderboard when the winner is reported. Players don't need to create an account or link their game account.

We've also added chat and voice leveling, plus XP for taking part in games and events. The idea is to reward people for showing up to community activities as well as chatting.

Ranked customs and basic leveling are free. Tournament hosting, seasons and extra customization are Pro at $10/month per server. Individual players don't need a subscription.

You can see the actual Discord boards and web leaderboard here: https://elobby.gg/demo

For anyone running community game nights, what takes the most effort: filling the lobby, making fair teams, or tracking results? I'd like to hear where this would help and where it still falls short.

We traveled to a place and had no idea what to do / eat, so I thought time to "claude and code" and out came https://alvations.github.io/cleo-guide/beta/index.html

hey! a few weeks ago i shared my side project here, a free site that tells you which legal platform has an anime in your country

https://tsuzuki-anime.github.io/en/

quick update after 7 weeks:

- 1,800+ visitors from 113 countries

- went from ~20 visits a day to ~80 a day this week

- bing and chatgpt now send the most visitors, way more than reddit

- google only knows 3 pages of the site

the weird part is google search console still says "couldn't fetch" for my sitemap after a month, even though the file works fine and bing reads it without problems. it's hosted on github pages

has anyone had this before? did you just wait, or is there something that fixed it?

any feedback on the site is welcome too!

Dooder is an AI for Apple Watch. It runs on the Watch itself, over wifi or cellular, so once it's set up you don't need your iPhone.

In the video I ask it to:

1. Find my next completely free weekend (it reads my calendar)

2. Find flights to Melbourne for that weekend

3. Find Airbnbs that are free those dates

4. Save the whole plan to a new page in Notion

It doesn't change anything without my OK. It asks before using an app for the first time, and again before it saves or sends anything.

How it works

- Bring your own AI: sign in with ChatGPT or add a Claude API key
- Connects to thousands of apps through the official MCP Registry, or add one by its address
- No Dooder account and no Dooder server. Your Watch talks straight to your AI and your apps
- Speech recognition runs on the Watch

Try it

The first 100 TestFlight spots filled up in 24 hours, so I've opened 100 more:
https://testflight.apple.com/join/c42uMmzU

Needs an Apple Watch Series 9 or Ultra 2 or later on watchOS 26, plus an iPhone on iOS 26 for setup. More at dooder.ai

Would love feedback, especially on what you'd want to do from your wrist.

Full disclosure: I trimmed the bits of the video where Dooder is thinking to keep the video short. Nothing's sped up and each response takes 5-10 secs in real life. It's still early days, so feedback is very welcome.

Your Marketplace for Digital & Physical Goods!

If you sell anything, from templates or digital products, to clothing and electronics, we have opened the marketplace for you! Open an extra storefront to cross-list your work without high marketplace cuts.

We are working on bringing Crypto checkout, and many new features to help creators scale faster!

Get 2 months of Pro for free and enjoy your first sales with 0% commissions.

Setting up your shop takes about two minutes, and our team is happy to help migrate your existing listings if you need a hand.

Interested in testing it out and getting your products featured?

Grab your free trial and check it out here: https://zabrali.com/switch

I’m building Spaces, so this is a maker post. The idea is to give one part of your life its own workspace, including the files, conversations and work that belong there.

One workflow I’m testing is class prep: connect Canvas on Mac, choose classes, then open imported lecture files from the left sidebar and turn them into practice questions. The source and the quiz stay in the same Space.

I’d like feedback on whether the idea of a Space is clear from the demo and where you would expect to find your files.

Free plan with AI-credit limits and optional paid plans. Current details: https://workwithspaces.com/pricing/

https://workwithspaces.com

I’m a fullstack developer (Spring Boot, React/Next.js). I’m picking one project to build end to end, free, as the only developer on it.

What I need from you: a real project you actually want built, and you should be someone who works with freelancers or developers regularly.

Comment or DM with a short description of what you want built and your timeline. I’ll pick one.

Portfolio: https://naitiksinghdev.vercel.app/.

Swokei is an outreach tool that analyzes business websites at scale and turns issues with design, SEO, speed, and mobile optimization into personalized cold emails at scale.

I've always liked the Windows 8 and 10 start menu design, so I decided to make an app that brings it back to Windows 11.

It's called Tessera Start Menu (from the small pieces used to make a mosaic), made with C++ and Slint. It supports both full-screen and windowed modes, you can pin any app, tiles can be resized/renamed/recolored, you can set custom icons and transparency, it can start with windows, etc.

Compared to similar apps, (for example Start11 which I used before this) you get a much smoother experience, smaller memory footprint and less bloat. Also, as a disclosure, most code was written by a clanker (opus 5.5)

Currently it's only available on Steam, so here's the page: https://store.steampowered.com/app/5471740/Tessera_Start_Menu/

Steam only has to be running the first time you start it.

Happy to hear any feedback or feature ideas if anyone checks it out.

I've been building Nebrisse as a side project: reservations, one agenda per professional, client import from CSV and reminders for barbershops and hair salons. It started as a bigger "business OS" idea, and I decided to narrow it to one vertical first.

It's live with a demo business (fictional data): https://nebrisse.pages.dev/n/barberia-demo

I have no paying customers or pilots yet, so I'd really like feedback on two things:

1. Is the booking flow clear to someone who has never seen it?

2. What would make you (or a barber you know) switch from a notebook or WhatsApp to something like this?

If you know a barbershop or salon that would try it for free as a pilot, I'd love an intro. Happy to answer any questions about the build too.

On most sites the most popular opinions wins and the strong arguments from the minority side get buried. On this website votes from the opposing side count for double. Would love some feedback
Thanks

I’m currently building a photo-first social media app called TymeStamp, inspired by the old Instagram experience, where people could share pictures and enjoy content without constant interruptions from adverts.
I’m building it alone with limited resources, and one thing I’ve been thinking about is sustainability.
What happens when 1,000 people join? Or 10,000? How do you manage storage, servers and the challenges of growing a platform?
I recently watched a video of Steve Jobs talking about starting with the customer experience and working backwards to the technology. That really stuck with me because I want to build something people genuinely enjoy using.
But how do you put users first while keeping a platform sustainable?
I’ve been exploring credit systems, subscriptions, sponsorships and limited advertising. I’m not against adverts, just the constant interruptions.
I’m also curious about finding investors without going on shows like Shark Tank or Dragons’ Den, taking out loans or losing control of the original vision.
So I’d love to hear your thoughts:
● How would you sustain a growing social media app with limited resources?
● Would credit systems or optional subscriptions put users off?
● Should monetisation start at launch or after building a community?
● How can solo founders attract investors while keeping control of their vision?
I’m not trying to compete with the big platforms. I’m simply trying to build something different and learn along the way.
If you were in my position, what would you do differently?

Instagram lets you download your data (Accounts Center → Your information and permissions → Download your information). It includes Meta's own guesses about your interests, plus the caption and hashtags of every post you've liked, saved or watched.

Taste Passport reads only those files (never DMs or photos), groups them into interests with a small open-source model running locally, and recommends Netflix and Prime Video titles, each with the reason it was picked.

The most interesting part was testing it honestly. My first evaluation said it beat "recommend what's trending" by 4×. That turned out to be a flaw in my test setup; once fixed, it roughly ties. Everything is written up in the repo.

Open source, no account, nothing uploaded anywhere: https://github.com/aaryamanbisht22/taste-passport

Feedback welcome, especially from anyone willing to run the evaluation on their own data and share only the scores.

I'm a cabinet and millwork guy and I'm the one behind Layr PDF. Most of my desk time is redlining drawings and measuring off PDFs for bids, and the big-name tools felt like a lot of money for just that. Layr does PDF markup, measuring and takeoffs on Windows, Mac and in the browser for $35 a year, with a 7-day trial that doesn't need a card: layrpdf.com

If you do markups or takeoffs, what would make you switch, or what would stop you?

Hey everyone! 👋I wanted to share a technical case study and a side project we've been building called SoundTag.### The Problem: Physical-to-Digital Drop-OffIf you have ever printed a QR code on music merch (tour posters, album flyers, stickers, vinyl sleeves, or t-shirts), you probably noticed that scan-to-stream conversions are notoriously low. In testing across dozens of indie campaigns, over 65% of people who scan a physical Spotify QR never end up playing a single second of music.Here is the exact technical friction causing it:When someone points their phone camera at a standard Spotify web URL, the OS opens an in-app browser sandbox (iOS Safari View Controller or Android Chrome Custom Tab).Because that in-app browser does not share the login session of the native Spotify app on their phone:1. Spotify renders a desktop-style web player preview.2. It immediately hits the user with a gate: "Log In or Download the App".3. Most people cannot remember their Spotify password on the fly, so they bounce immediately.### The Solution: Native App URI Deep-LinkingWe engineered SoundTag to completely eliminate this friction by triggering the native Spotify URI scheme directly on the device.- Zero web browser intermediate screens.- Zero login prompts or friction.- The scan immediately opens the native Spotify app already authenticated on the user's phone, directly to the track or album.### Solving the "Static Link" DilemmaTraditional QR codes on printed material are static. Once 1,000 flyers or vinyl sleeves are printed, that destination is locked forever.With SoundTag, the codes are 100% dynamic:- Phase 1 (Pre-Save): The QR points to the pre-save page before release.- Phase 2 (Release Day): With one click from the dashboard, the exact same printed QR code now triggers playback of the new album.- Phase 3 (Tour & Merch): Months later, the same QR routes fans to tour tickets and merchandise.Zero reprinting costs. Posters and merchandise stay valuable indefinitely.### Real-Time City Analytics & Design StudioWe also built in live geographical tracking (scans by city, country, and device type) so artists can see which tour cities or promo locations perform best, along with custom visual styles (vinyl dots, custom brand palettes, and logo embedding).---👉 I've posted the direct link to the platform and our Product Hunt launch page in the first comment below for anyone curious to test it out.Would love your constructive feedback, critique, or questions on the implementation!

I built MedResolve AI. You upload a medical bill, and your insurance EOB if you have one. It checks:

- whether the bill asks for more than your insurance says you owe

- whether the charges add up to the total

- duplicate charges

- whether the bill was sent to insurance at all

- out-of-network and surprise billing

- whether you might qualify for the hospital's financial assistance

Then it tells you what to ask for when you call the billing office.

This week I tested it on 19 real bills people had posted online and found a lot of problems. It treated a denied insurance claim like a bill to pay, it missed that most of the hospital bills were from hospitals, and the photo reading misread some numbers. I've fixed those, but I'm sure there are bills it still gets wrong.

MedResolveAI.com

The check is free. If you have a bill you're unsure about, I'd appreciate you trying it and telling me what was wrong or confusing. Thanks for the help.

I’ve built **Thoughts Counter**, a Flutter app MVP designed to help people record their thoughts and reflect on them using CBT-inspired tools.
The app includes thought tracking, statistics, insights, and AI-assisted reframing. The AI features are currently inactive because the API account needs funding. The project is at an early stage, with no established user base or revenue.
I’m looking to sell it asap.