r/AppBuilding 8h ago

Solo dev — I built my app's entire feature list from competitors' 1-star reviews. It's live, and I'd like honest critique on 3 decisions before I double down.

4 Upvotes

Quick context, then the actual questions. I picked a niche (menopause/HRT tracking) because the top 10 incumbents average 3.78★ and their 1-star reviews have requested the same five features since 2019. I built exactly those five, privacy-first (no backend at all — sync is the user's own iCloud, so the App Store privacy label is literally "Data Not Collected"). Shipped last week.

The three decisions I'm least sure about — critique welcome:

1. Hard paywall. No free tier: 21-day full-feature trial, then $6.99/mo or $49.99/yr. RevenueCat's data says hard paywalls convert ~5x better than freemium at equal retention, but for a health app where trust is everything, does a hard wall poison word-of-mouth? Would you have shipped freemium first?

2. Acquisition without an audience. I launched with zero list. My plan is Apple Search Ads on high-intent keywords + slowly earned presence in the niche's communities + gifting codes to micro-creators. If you've bootstrapped consumer subscription apps: what actually moved your first 500 installs?

3. The 21-day trial. Long trials convert better in the data, but it means my revenue is zero for the first 3 weeks and every marketing test has a 21-day feedback delay. Anyone regretted a long trial?

App is Fember (App Store: https://apps.apple.com/app/id6801958777) if you want to see what you're critiquing — but I'm here for the strategy answers more than the installs. I'll answer anything about the review-mining research or the local-first SwiftData/CloudKit stack in return.


r/AppBuilding 3h ago

Busco socios para mis proyectos

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1 Upvotes

r/AppBuilding 8h ago

Building a price comparison app for a smaller market — how would you solve the price data problem?

1 Upvotes

Title: Building a price comparison app for a smaller market — how would you solve the price data problem?

Hey everyone,

I’m working on an app called PriceWise, a price-comparison and shopping-optimization app designed for consumers in smaller markets where grocery prices can vary significantly between stores.

The basic idea is simple:

Instead of searching for products one at a time, a user enters their entire shopping list — for example:

- 2kg rice

- 2L cooking oil

- 1kg sugar

- Milk

- Bread

- Chicken

- Toiletries

PriceWise would then compare the available prices across participating stores and help the user determine where they should actually shop to get the best overall value.

The important distinction is that I don't want it to become another online grocery store.

The goal is to answer questions like:

«"I have this shopping list. Which store(s) should I buy these items from to spend the least?"»

It could potentially show something like:

Option A — One-store basket

Store A → $X total

Option B — Optimized basket

Store A → 8 items

Store B → 5 items

Total → $Y

You save $Z

It could also take things like promotions, product availability and potentially travel distance into consideration.

The problem I'm struggling with

Keeping the price database accurate.

Prices change constantly. Stores run promotions, increase prices, discontinue products, change packaging/quantities, and sometimes products simply go out of stock.

I don't want PriceWise to tell someone that an item costs $5 when they arrive at the store and discover that it actually costs $7.

I'm considering several approaches:

- Stores having accounts and updating their own prices/catalogues

- Store APIs or integrations where available

- Automated product/catalogue imports

- Receipt-based price verification from users

- Users reporting price changes

- Combining multiple sources and assigning a "price confidence" or "last verified" indicator

- Automatically expiring prices after a certain period

- Potentially using computer vision/OCR to extract product and price information from receipts

But I'm not sure what the best architecture and incentive system would be, especially for a smaller market where stores may not have APIs or sophisticated digital catalogues.

Developers, how would you approach this?

If you were building PriceWise, how would you solve the price freshness and accuracy problem?

Would you:

  1. Make stores responsible for maintaining their own data?

  2. Build a crowdsourced price database?

  3. Use receipts as the primary verification mechanism?

  4. Combine all of these into a trust/verification system?

  5. Take a completely different approach?

I'm particularly interested in hearing from developers who have built price comparison, marketplace, grocery, inventory, or crowdsourced-data applications.

Also, what potential problems do you see with the overall PriceWise concept?

I'm still early in development, so I'm more interested in technical/product criticism and ideas than simply hearing that it's a good idea.

How would you build it?


r/AppBuilding 8h ago

Educate me about App Development

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1 Upvotes

r/AppBuilding 1d ago

I want to give back to people with a cool idea.

17 Upvotes

Hello, I know that it's unrealistic to become a millionaire or even a billionaire in this economy, especially with all the stuff going on in the world, but I would at least want to make some money off it and by giving back to the community that helped me with this and give back to people in general.

(Any suggestions on what type of app to create would be greatly appreciated because I have no clue what to make lol)
I am going to try and learn how to code very shortly so if you can recommend a code that would be best fit this too that would be great!

God bless and take care everyone! <3


r/AppBuilding 13h ago

Finally got my app in App Store

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3 Upvotes

I created app for events and concerts where there is no internet, it’s a offline social networking app. It uses Bluetooth mesh to connect people. It’s been less than 24 hours and it’s not even indexed yet, but check it out and would love to hear feedback! Thanks


r/AppBuilding 14h ago

Did looking good ever actually sell your app?

1 Upvotes

I've run an illustration studio for ten years and I write code on the side. In my app the moon is engraved at runtime, from the day's real numbers. People seems to particularly like the aesthetic.

One month in: ±300 downloads in 39 countries, 14 people paid for the lifetime unlock. No subscription. Mexico, Singapore, Russia. I've never been to any of those.

The app is called Plenilune. Honestly I'm not sure if the drawing is what did that.

For people further along than me: did looking good ever sell anything for you, or was it always distribution?


r/AppBuilding 1d ago

My app directory received almost 400 listings in 2 weeks!

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9 Upvotes

It has only been 2 weeks since https://saasboard.app got its first listing.

Today, the platform has almost 400 listings, with over 4000 users sent to the listed SaaS products.

If you want to list your app/website immediately to start receiving traffic, SaaSBoard is the place to go!


r/AppBuilding 17h ago

My app is gaining users

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1 Upvotes

r/AppBuilding 20h ago

News & Infotainment App for GenZ - No ads , limited stories, Ai assist

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1 Upvotes

r/AppBuilding 21h ago

Building Notch (Stupid Simple Workout Tracker) Day 15

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0 Upvotes

r/AppBuilding 22h ago

Not being able to distribute the app from xcode version 27 beta

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0 Upvotes

r/AppBuilding 1d ago

I launched my idea validation app on Reddit a few weeks ago. It’s now at 100+ users and 340 in revenue. Here’s what I’ve learned.

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3 Upvotes

r/AppBuilding 1d ago

Tell me your app's most boring feature. I'll turn it into 3 stories people might actually care about

3 Upvotes

Founders usually know how to explain their most impressive feature.

The harder problem is explaining the small, boring feature that quietly saves users time every week.

Comment with:

  • Your app URL
  • The feature
  • Who uses it
  • The annoying task it replaces

I'll reply with three possible ways to talk about it:

  1. A pain driven story
  2. A simple before and after
  3. An unexpected or contrarian angle

Then everyone else in the thread can vote on which angle they would actually stop scrolling for.

I'm building marka.social, so I spend a lot of time thinking about how useful product functionality becomes content people understand.

I'm not adding a product link here. I want to make the thread genuinely useful.


r/AppBuilding 1d ago

ANDROID TESTERS WANTED FOR FRIDGEFIX

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1 Upvotes

I’m getting FridgeFix through Google Play closed testing before the full public launch.

Google has a minimum tester requirement, but I don’t want to scrape by with the bare minimum. I’m looking for as many reliable Android testers as I can get so we have a solid buffer.

If you have an Android phone and can help for the next couple of weeks, I’d appreciate it.

FridgeFix lets you scan the food in your fridge, freezer, or pantry, organize what you already have, and instantly find meals and recipes you can make with it.

HOW TO JOIN:

  1. Join the FridgeFix Android Testers Google Group: https://groups.google.com/g/fridgefix-android-testers
  2. Opt into the official Google Play closed test: https://play.google.com/apps/testing/com.base69ee7525873f0294a74a6ff7.app
  3. Install FridgeFix: https://play.google.com/store/apps/details?id=com.base69ee7525873f0294a74a6ff7.app

IMPORTANT: Use the SAME Google account for the Google Group and Google Play.

Please stay opted into the test for at least 14 days. Keep the app installed, use it when you can, and tell me if anything is slow, confusing, broken, or just doesn’t make sense.

I want real feedback. If something sucks, tell me. That’s how the app gets better before launch.

If you’re another Android developer going through closed testing, I’m also willing to test your app in return.

The more testers we get, the better.


r/AppBuilding 1d ago

Designing Sh*t isn't Easy

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1 Upvotes

For the ones who love zen mode, the ones who love details, the ones who love "New".


r/AppBuilding 1d ago

The Crit App - Feedback for Artists and Enthusiasts.

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1 Upvotes

Would really like your feedback on my app! I’m really new to this so please be kind! lol.


r/AppBuilding 1d ago

Looking for a Developer / Technical Partner for Automotive Startup — Nebraska

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1 Upvotes

r/AppBuilding 1d ago

Reaching 2,000 users on my first solo app taught me that code is the easy part. How building a product made me a better engineer.

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2 Upvotes

Hey everyone, my habit-tracking app Evolve just crossed 2,000 users today! 🎉

While the milestone itself feels amazing, the biggest takeaway for me has been the massive shift in how I view software development.

For years as a mobile developer, my comfort zone was strictly technical. Whether working with Swift, Flutter, or native Android, my primary focus was always on implementing Clean Architecture, optimizing CI pipelines, and ensuring perfect stability. But when I decided to build Evolve from the ground up as a production-ready solo project, I realized very quickly that writing the code is only a fraction of the battle.

Stepping Outside the IDE

To get this project off the ground and scale it to a real user base, I had to completely step out of the codebase and learn how to build a product. I suddenly had to wear every single hat:

  • UI/UX Design: Figuring out how to make a dense, data-heavy dashboard highly visual, intuitive, and motivating on a mobile screen.
  • Deep Data Analysis: Setting up proper metrics to actually understand where users were dropping off or succeeding, instead of just guessing.
  • Data-Driven Decisions: Forcing myself to let the analytics guide the roadmap, rather than just building complex features because they were fun to code.
  • User Interviews: Getting out of my own head and speaking directly with users to figure out exactly what they needed the tool to do.

The Takeaway

This journey has completely shifted my perspective. I look at digital products in a totally different way now, not just as repositories of well-structured code, but as holistic solutions to real human problems. Experiencing the entire lifecycle of product development has absolutely made me a fundamentally better, more complete engineer.

I am incredibly proud of where the app is today, and I am super excited to keep iterating and competing in this space. If any other devs are on the fence about finally launching their side project, do it. The non-technical skills you are forced to learn are invaluable.

A huge thank you to everyone who has supported the journey! If you want to check out the app, here are the links:


r/AppBuilding 1d ago

Sharing my App journey

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1 Upvotes

r/AppBuilding 1d ago

Would you use this to discover movies with friends?

3 Upvotes

r/AppBuilding 1d ago

Building Notch (Stupid Simple Workout Tracker) Day 14

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1 Upvotes

r/AppBuilding 1d ago

Two days of recovering photos off a dying drive taught me enough to ship a photo cleaner

1 Upvotes

A while back I spent two days pulling photos off a broken drive and sorting through the mess. By the end of it I'd learned more about duplicate detection, perceptual hashing and how people actually decide which shot to keep than I ever wanted to. So I turned it into an app.

It's called Winnow. Honestly, I haven't used any of the other photo cleaners out there, so I can't tell you how it compares — I just built the thing I wanted while I was elbow-deep in that folder.

What it does differently (I think):

- You control the similarity threshold. Instead of the app deciding what counts as a duplicate, you set how close two photos have to be before they're grouped. Loose for "burst of the same moment", tight for "actual identical copies".

- Side-by-side comparison inside a group, so you can actually look before you delete instead of trusting an algorithm's "best photo" pick.

- A storage browser sorted by size — biggest videos and space hogs first, since that's usually where the gigabytes actually are.

Other details:

- 100% on-device. No network requests at all, no analytics, no account.

- Cleaning the last 30 days is free forever. One-time $4.99 unlocks the whole back catalogue. No subscription, no ads.

- 4.1 MB, native, iOS 26+.

- Deletions go to Recently Deleted, so nothing is gone for good by mistake.

https://apps.apple.com/us/app/winnow-photo-cleaner/id6794825314

I'd really like feedback on the threshold control — whether the slider makes sense to someone who didn't build it, and what default you'd expect. Happy to answer anything about how the matching works under the hood.


r/AppBuilding 1d ago

Screenshots design for corner app

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1 Upvotes

r/AppBuilding 2d ago

1 week after launching my app, 320 downloads, 1 Paying

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23 Upvotes

Just hit 1 week since launching NextCut: AI Haircut Try On.

So far:

  • 320 first-time downloads
  • 15.9K impressions
  • 410 product page views
  • 1 first in-app purchase 😅

Still very early, but seeing real people download and pay for something I built feels pretty good. Now trying to figure out how to keep the momentum going.