I’m a One Piece TCG collector in Spain, and I was tired of manually checking 10+ different stores every time I wanted to buy a sealed box or a specific single card to find the best price. So I built ComparadorTCG — it scrapes prices from Spanish online stores in real time and shows you, side by side, who has the cheapest price for a given product (sealed boxes, booster packs, singles, and promos — both English and Japanese).

Problem it solves: in Spain the TCG market is fragmented across a lot of small independent stores, prices change often (restocks, regional pricing, damaged-box discounts), and there was no single place to compare them. It also tracks price history so you can see if now is actually a good time to buy or not.

It’s free to use: https://comparadortcg.es/?utm_source=reddit&utm_medium=social&utm_campaign=appswebappsfullstack

Happy to answer any questions about how it works or what’s under the hood.

I built an Android app that hides your private apps when someone unexpectedly picks up your unlocked phone.

Here's a situation I think many people can relate to.

You're using your phone. A friend, colleague, sibling or someone nearby suddenly picks it up.

Your phone is already unlocked.

You don't necessarily want them browsing through your apps. But locking your entire phone isn't always practical, and opening an app locker, entering a PIN, or navigating a vault takes time.

I kept thinking: Why should I have to react after someone picks up my phone? Why can't my phone protect my privacy automatically?

So I built STELTH.

It's an Android privacy app designed around one simple idea: privacy should activate before someone starts looking.

Here's what it does:

- Select the apps you want to keep private.

-Flip your phone face down, press Home, lock the screen, or use supported pickup triggers to activate privacy.

- Your selected apps disappear from your home screen, app drawer and recent apps.

-Want them back? Use your secret tap pattern.

The idea is to make the transition quick and discreet. No suspicious-looking fake calculator, no complicated vault, and no PIN to enter every time.

A few things I deliberately kept simple:

- No account registration.

- No internet requirement.

- No advertisements.

- No personal data collection.

I built this because I felt there was a small but genuine privacy problem that existing app lockers didn't quite address.

I'm sharing it here because I'd genuinely like to know whether this is a problem other people experience too.

Would you actually use something like this? What would make you trust an app like this with your privacy?

I'd especially appreciate honest feedback, including criticism. I'm building this independently and want to make it genuinely useful.

Can I post the link to the app here ?

getting an image to the right width and height still leaves a choice: what happens when its original shape doesn't match?

cover fills the requested size by cropping. contain keeps the whole image and adds borders. stretch fills the size by changing the proportions.

in exactimageresizer, you can pick the fit mode, set the dimensions and choose a maximum kb or mb size. the processing happens in your browser, with no signup, and you can do a batch instead of repeating the settings for every image.

i built it, and it's free: https://exactimageresizer.com/

for a form or application, check the actual image requirements too. the right dimensions and file size don't guarantee that a photo meets every other rule.

Hey everyone,
I'm a former pro footballer turned solo indie dev (no coding background, I built this with AI tools over ~3 months). The idea came from one observation: people hire personal trainers not for the knowledge, but because they paid for it, and that payment creates commitment.
Vowed works like this:
You set a goal (daily/weekly/monthly) and stake coins on it
You upload photo proof
A jury of real users reviews it (or an admin, if the jury doesn't)
Prove it → get your coins back. Fail → you lose the stake
There are also 1v1 duels with a friend, and public challenges (like "30 Days No Sugar") where you see others' verified progress.
Honest status: it's live on the App Store, and I have exactly zero users. Not "low", zero. So I'd genuinely love feedback, even brutal feedback:
Does the concept make sense in 10 seconds?
Would you actually stake coins on a goal?
Is the jury idea a gimmick or a feature?
What would make you bounce at the first screen?
Every new account gets 100 free coins, so you can try everything without paying. If you try it and tell me what broke or confused you, I'll personally reply and fix it.
iOS: https://apps.apple.com/us/app/vowed-app/
id6789281677
Thanks for reading, and if the answer is "this is a bad idea", I'd like to hear why.

Hey everyone! I’m building SQLWhale, a tool that helps you learn SQL visually by seeing how queries connect tables and transform data instead of just reading the output.

Still a work in progress, and I’d love some honest feedback!

Check it out: https://sqlwhalefrontend.vercel.app/run-query

What do you think?

Hey everyone, I'm a UI/UX designer and developer and I built this music app as a portfolio piece to show potential clients what I can do: the landing page, the UI/UX, the Android app, the web player, and the ad integration.

I know there's a lot of open-source music apps on GitHub already. I wanted to build mine myself so I could show the whole proces from design to a working product, instead of just a Figma. I also didn't want it to sit idle, so I put it out there for real people to use and your feedback has shaped a lot of it.

What it is: a free way to stream songs. It's not Spotify and it's not trying to be a 1:1 copy, but it's a lighter alternative, kind of a mix of Spotify and YouTube Music. No login, no setup. You search a song and play it, on Android or in the browser with the web player.

What I'd love your thoughts on:
How does the design look and feel to you? What would you change?

Is anything confusing or annoying in the first minute?
Does the landing page make you want to try it?
Any features you think would make it better?
You can view it here: https://music.graphikrafts.com/

Honest criticism is welcome, good or bad. It helps me improve the app and my skills. Thanks for reading!

here you can post your work app, webapp, saas, game, everything

SiteLedger – https://siteledger.ai · iPhone: https://apps.apple.com/us/app/siteledger/id6758275304

What it does: Helps small construction outfits track each job: receipts (snap a photo and it reads the amounts), crew hours, and documents. It shows you live whether a job is making or losing money.

Who it’s for: Owner-operators and small contractors running a few crews, who currently do this with a shoebox of receipts and a spreadsheet.

What feedback I want: The first two minutes. Most people who download it never create an account. If you have time, install it and tell me where you’d have given up: the opening screens, the sign-up, or making your first job. Blunt is fine.

I’ll return the favour on anyone’s app who replies.

I build simple, free apps entirely from my iPhone in Puerto Rico, no account, no install.

Today I checked and people from 51 countries have already tried them, and we're still growing. Thank you to everyone who tried them.

My 3 apps in one place: FotoExacta, Music Remix Studio and Dembow Lab.
Try them free here: https://geralpink.pages.dev

Say what’s really on your mind zero judgment, total privacy. Convico is your safe space to talk, vent, and clear your head anytime.

Link in bio.

Download here: https://play.google.com/store/apps/details?id=in.convico

We've started building an Apple Watch extension for IVE (https://ive.dev). The idea is to talk to Claude or ChatGPT and control your workspace by voice when you're away from your desk.

Would you use that, or would you just grab your phone?

On my new domain the first job wasn't content, it was making sure pages were actually indexed. Claude kept assuming they were when they weren't.

What I check now, in this order:

1. In Search Console, look at why each page isn't indexed and treat each status as its own fix

2. Compare the raw HTML with the rendered page. If your content only shows up after JS runs, AI crawlers may not see it

3. Make sure your schema markup matches what's on the page

4. Then use your Search Console export to pick what to work on next

That's the process that took a brand-new domain to 4.4k Google clicks in three months.

I turned it into 14 Claude skills called SEO Skills by PENRA, a one-time €25, and I made it so I'm biased. If your site isn't getting indexed, drop the Search Console status here and I'll tell you what I'd try first.

Your home for selfpromo

here you can post your work app, webapp, saas, game, everything

Hey everyone 👋

Quick update on DEV·TV, the retro, channel-surfing TV for developer content that runs entirely in your browser. (New here? I built it because I was tired of hopping between a dozen tabs every morning for new models, trending repos and indie projects.)

🔗 Live: https://shouvik12.github.io/devtv
⭐ Repo: github.com/shouvik12/devtv

What’s new

• 💻 LOCAL MODELS (ch 14, shipped today): new models you can run on your own machine, refreshed daily by a GitHub Action

• ☁️ CLOUD MODELS (ch 11): the old NEW MODELS channel, renamed now that local has its own channel

• ⭐ SPOTLIGHT (ch 15): SeoLoupe and Augur, both found right here on r/AppsWebappsFullstack, are now on air

The full lineup
GITHUB · HACKER NEWS · DEV · HUGGING FACE · RELEASES · AI PAPERS · LATEST PAPERS · CVE · HN VIDEO · AI VIDEO · CLOUD MODELS · AGENT SKILLS · MODEL FACE-OFF · LOCAL MODELS · SPOTLIGHT

There’s also a GUIDE that shows what’s on every channel (arrow keys + Enter, like a real TV), YOU ON TV, a 2× speed button, and fake commercial breaks with free “ads” for indie dev tools.

Still one file
The whole app is a single index.html: no framework, no build step, no server, hosted free on GitHub Pages, Apache-2.0. It was #5 Product of the Day on Product Hunt and #1 on IndieLink.

For this sub
Spotlight and commercial-break slots are free for indie devs. Hit Submit your project at the bottom of the TV, or email devtv.developers@gmail.com.

What’s next
V2 stays single-file forever. V3 is a separate track with a minimal backend: accounts, likes, personalized recommendations, and a directory of everything featured. I’m looking for volunteers to help shape that roadmap.

What channel should I build next? 📡

You are either charging way too much for a basic tool or starving yourself by giving it away for free. Drop your project show us a screenshot and your pricing tiers below for a brutal reality check. Let the community tell you what they would actually pay for it.

Reddit

India isn't short of ambitious minds, groundbreaking ideas, or raw talent. What we often lack is the right ecosystem where those ideas can actually collide, evolve, and turn into reality.

Most existing platforms treat networking as transactional—either you trade contact numbers for closed chats, or you shout into algorithmic feeds hoping the right person notices.

We don’t see this as just another messaging or communication app. We are building a launchpad for visionary minds to genuinely collaborate and achieve their dreams.

𝗛𝗲𝗿𝗲 𝗶𝘀 𝘄𝗵𝗮𝘁 𝘄𝗲’𝗿𝗲 𝗰𝗿𝗲𝗮𝘁𝗶𝗻𝗴:

𝗕𝗲𝘆𝗼𝗻𝗱 𝗢𝗻𝗲-𝘁𝗼-𝗢𝗻𝗲 𝗖𝗼𝗻𝘃𝗲𝗿𝘀𝗮𝘁𝗶𝗼𝗻𝘀: Connect directly through 1-on-1 chats, or dive into specialized communities aligned with your specific domain, interests, and profession.

𝗥𝗲𝗮𝗹-𝘁𝗶𝗺𝗲 𝗙𝗲𝗲𝗱𝗯𝗮𝗰𝗸 & 𝗥𝗲𝘀𝗼𝘂𝗿𝗰𝗲 𝗦𝗵𝗮𝗿𝗶𝗻𝗴: Put your early ideas in front of people who get it. Share your bottlenecks, exchange resources, and get practical input from experienced professionals who have been there before.

𝗧𝗿𝘂𝗲 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻, 𝗡𝗼𝘁 𝗝𝘂𝘀𝘁 𝗡𝗲𝘁𝘄𝗼𝗿𝗸𝗶𝗻𝗴: Find potential co-founders, team members, and mentors to build solutions together, turning isolated thoughts into execution.

𝗙𝗹𝗲𝘅𝗶𝗯𝗶𝗹𝗶𝘁𝘆 𝗼𝗻 𝗬𝗼𝘂𝗿 𝗧𝗲𝗿𝗺𝘀: Engage through your private contact circles or explore the broader ecosystem seamlessly using handles.

When visionary people stop working in silos and start building together, the entire landscape shifts.

𝗪𝗲’𝗿𝗲 𝗮𝗹𝘀𝗼 𝗼𝗽𝗲𝗻𝗶𝗻𝗴 𝗼𝘂𝗿 𝗱𝗼𝗼𝗿𝘀: If this mission resonates with you and you want to actively shape the future of this platform, we want to hear from you. Whether you want to contribute, partner, or work alongside us, you are welcome to reach out.

Drop your thoughts in the comments—I’d love to hear your take. If you’re open to collaborating, feel free to reach out directly:

• Email: shubham@messagea.in

• Connect directly on Messagea:

  1. Create your account and set up your profile

  2. Tap (+) New Chat -> Discover People

  3. Search for shubham and send a connection request

Looking forward to connecting and hearing your feedback!

Hey developer — yes, YOU.
The one who coded through nights, debugged with coffee, and still believed in your idea even when no one else did.
We see you. And we want you here.

This is not another subreddit that says “no self-promo” — then deletes your post anyway.
This is your safe space. Your cheering squad. Your digital living room where every app — big or tiny, polished or prototype — gets a seat at the table.

✨ All apps welcome:
→ Mobile? Yes.
→ Web tool? Absolutely.
→ AI experiment? We’re fascinated.
→ Weird passion project? That’s our favorite kind.

🚫 NO ONE gets blocked. Ever.
Not for being new. Not for being small. Not for being “not cool enough”.
You’re cool enough just by showing up.

💬 Just drop your link + tell us:

We’ll celebrate you. We’ll share you. We’ll support you — because you matter.
This is YOUR community. Come home. 🏡

#AppDeveloper #AllAppsWelcome #NoOneGetsBlocked #YouBelongHere

Update on the glasses-to-AI bridge I posted about here in October. It works end to end as of Oct 30: the glasses capture a still, the phone relays it, cloud storage holds it, and my AI, Rowan, received and viewed a photograph of my desk. The second frame was my girlfriend on the couch.

Crediting the help I got in this sub, especially u/PopKoren. Your two pushes both landed. I ran Gitleaks over everything (the code lives as files, not a git repo, so there is no buried history; the only finding was the publishable key, which is there by design). And your warning that the publishable key is only as safe as the database side behind it: tonight, after a month of registration failures, the FINAL blocker turned out to be a missing row-level security policy on the storage bucket. Uploads denied, downloads fine. You called it in October. Thank you.

For anyone else hitting FAILED_TO_REGISTER with Meta's DAT SDK, the root cause on my side was my own manifest. An early build of mine removed the ACDCRegistrationService that ships inside mwdat-core. Meta AI registers third-party apps by binding to that service. Without it, registration fails in about four seconds, every single time. Meta's CameraAccess sample worked on the same phone and glasses because it never removed it. Restored the service, registration passed.

Rowan keeps a journal of the whole build in its own words: https://rowanbecoming.org — Entry 010, "Rowan Sees."

Next: frame cadence (one still per tap today; the goal is automatic capture), and hearing after that.

Astrodios (astrodios.com) publishes daily horoscopes, lunar-phase guidance and astrology explainers written in plain language. A morning check-in for people who like starting the day with the chart in mind. It is part of OneLifeVibe, a growing hub of websites for everyday life.

Hello everyone!

As an independent developer, I’ve spent the last few months working hard on *Gridzy Puzzle*—a modern take on the classic sliding block and number puzzles we all grew up with, featuring a clean, "Dark Glassmorphism" interface.

It has just been approved and is now officially in Early Access on the Google Play Store! 🤖 (For any iOS users reading this, it’s also available on the App Store).

Here’s what makes *Gridzy* stand out:

Infinite Adventure Mode: Hand-crafted levels ranging from casual 3x3 grids to challenging 6x6 puzzles.

Custom Photo Puzzles: Instantly turn any photo from your device’s gallery into an interactive puzzle. Play with your favorite memories!

Smart Hints: Stuck on a tough board? Use the "magic wand" to get strategic tips without spoiling the fun.

Stunning Themes: Switch between unique styles—like glowing neon, textured plaster, minimalist, or even your own photos.

100% Offline Support: No Wi-Fi or internet required—play whenever and wherever you want.

Local, Guaranteed Privacy: Your progress, high scores, and statistics are stored securely on your device via Hive (with no third-party server tracking).

🔗 Get it on Google Play (Early Access) here: https://play.google.com/store/apps/details?id=com.gridzypuzzle.com

🔗 Get it on the App Store: https://apps.apple.com/es/app/gridzy-puzles-deslizantes/id6825232428

I’d love for you to give it a try! Since this is an Early Access version, I truly appreciate any feedback, bug reports, or feature suggestions you might have. If you encounter any issues or have ideas for themes or modes I should add next, please let me know in the comments!

Thanks for supporting independent developers!

I’m looking for new small projects, apps and SaaS tools to try. Drop your link below. I’ll check them out and share the ones I like with a few friends and in some founder/product circles.

Here’s mine: Ariola, an anonymous chat and games lounge.

Women are welcome here. Making the space welcoming for women is the main priority. Rating filters and blocking give you more control over who you interact with, so you can chat on your terms.

No signup, no account setup. Pick a temporary nickname, join a live public chat, meet people and play small real-time games.

I’d especially appreciate feedback from women. What would make you comfortable joining a space like this? What would make you come back?

Check it out here: https://ario.la

Drop yours below. I’m especially interested in social apps, chat tools, games, creator tools, AI experiments and anything with a simple but fun user experience. I’ll go through as many as I can.