# Platforms apps ranked on King of Apps

> Covers software and devices organized around operating systems, browsers and other environments for running apps.

Path: [Consumer & Indie Apps](https://king-of-apps.vercel.app/category/koa-consumer-indie-apps) > [Platforms](https://king-of-apps.vercel.app/category/koa-platforms)

_Data as of 2026-11-02T14:07:36.083Z. Ranks change whenever someone pays._

The #1 Platforms app is **Quillnote** (quillnote.app), with $58 paid. 5 apps are listed in Platforms or one of its subcategories.

Ranks are global: a category page filters the global board. The order reflects money paid, not quality.

## Platforms leaderboard

| # | Overall rank | App | Domain | Description | Total paid | Clicks | Listed since |
|---|---|---|---|---|---|---|---|
| 1 | 7 | [Quillnote](https://king-of-apps.vercel.app/app/quillnote.app) | quillnote.app | Markdown notes for Mac with backlinks, a daily page and an AI summary of everything you wrote this week. | $58 | 38 | 2026-11-02 |
| 2 | 15 | [Coinjar](https://king-of-apps.vercel.app/app/coinjar.money) | coinjar.money | Personal budget app that sorts bank transactions into envelopes and warns before an envelope runs dry. | $31 | 16 | 2026-11-02 |
| 3 | 22 | [Tidepool](https://king-of-apps.vercel.app/app/tidepool.games) | tidepool.games | Turn-based puzzle game about rebuilding a reef, with daily levels and a shared leaderboard for friends. | $17 | 8 | 2026-11-02 |
| 4 | 28 | [Vaultkey](https://king-of-apps.vercel.app/app/vaultkey.app) | vaultkey.app | Password manager with a browser extension that fills logins and flags passwords seen in a breach. | $10 | 4 | 2026-11-02 |
| 5 | 31 | [Fieldnote](https://king-of-apps.vercel.app/app/fieldnote.co) | fieldnote.co | Mobile CRM for reps on the road: a map of today's visits, voice notes and offline sync. | $7 | 3 | 2026-11-02 |

## Subcategories

- [Android Apps](https://king-of-apps.vercel.app/category/koa-android-apps) (1 app, #1 is Tidepool)
- [Browser Extensions](https://king-of-apps.vercel.app/category/koa-browser-extensions) (1 app, #1 is Vaultkey)
- [Gadgets & Hardware](https://king-of-apps.vercel.app/category/koa-hardware) (no apps yet)
- [iOS Apps](https://king-of-apps.vercel.app/category/koa-ios-apps) (2 apps, #1 is Coinjar)
- [Mac Apps](https://king-of-apps.vercel.app/category/koa-mac-apps) (1 app, #1 is Quillnote)
- [Mobile Apps](https://king-of-apps.vercel.app/category/koa-mobile-apps) (1 app, #1 is Fieldnote)
- [Windows Apps](https://king-of-apps.vercel.app/category/koa-windows-apps) (no apps yet)

## Related categories

- [Entertainment](https://king-of-apps.vercel.app/category/koa-entertainment): Provides consumer apps for leisure and amusement that do not fit games, music, podcasts, sports or video.
- [General](https://king-of-apps.vercel.app/category/koa-general): Covers consumer apps that do not fit the directory's more specific categories for work, media, learning or lifestyle.
- [Learning](https://king-of-apps.vercel.app/category/koa-learning): Helps people build knowledge and skills through lessons, practice, courses and other educational activities.
- [Lifestyle](https://king-of-apps.vercel.app/category/koa-lifestyle): Supports everyday personal needs, including relationships, food, parenting and money management at home.
- [Open Source](https://king-of-apps.vercel.app/category/koa-open-source): Covers apps whose source code is available for inspection, modification and redistribution under an open license.
- [Social & Community](https://king-of-apps.vercel.app/category/koa-social-community): Supports online interaction and shared communities through communication, publishing, networking and member activities.
- [Startups & SaaS](https://king-of-apps.vercel.app/category/koa-startups-saas): Supports new companies and subscription software businesses with tools for building products, finding users and running operations.