PocketSpec vs React Handbook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PocketSpec
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PocketSpec is a read-only viewer for comfortably reading the Markdown specifications inside your GitHub repositories, right on your iPhone and iPad. Check the design docs and specs stored in your project's docs/ folder anytime, anywhere. It isn't tied to a single repository — register multiple projects as a "spec bookshelf" and switch between them to read. ■ Key features • GitHub integration (read-only) Sign in with GitHub and securely fetch only the contents of the repository, branch, and documentation folder you specify. It never edits or commits files. • Clean Markdown rendering Supports headings, lists, code blocks, tables, images, and links. Optimized so even long specifications are comfortable to read. • Mermaid diagram rendering Renders Mermaid code such as flowcharts and sequence diagrams as real diagrams. Tap to zoom to full screen. • Manage multiple projects Set a repository, branch, and display folder per project. The last opened project and document are restored on launch. • Offline support Once fetched, content is cached on device, so you can read your most recently synced specs even with no connection. • Secure by design Limits the visible content to the folder you specify; it never reads source code or configuration files. Access tokens are stored only in the device Keychain and are never sent to any external server. ■ Who it's for • Engineers who want to quickly check their project's specs on the move or before a meeting • Anyone who wants to read documentation from multiple development repositories in one place • Anyone who wants to safely view private-repository design docs from their iPhone ■ Before you start Using this app requires a GitHub account and read access to the target repositories. To read private repositories, install the dedicated GitHub App on the target repository (the only permission required is Contents: read-only).
React Handbook
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The entire React documentation in one app, fully offline. WHAT IS INSIDE The react.dev handbook — 177 articles: quick start, learning guides, the API reference and hooks. All of it ships with the app: on the underground, on a plane and with no signal, the documentation opens exactly as it does at home. LANGUAGES English, Russian, Spanish, French, Portuguese, Japanese, Korean and Chinese. English and Russian are complete. The language comes from the phone; articles the community has not translated yet are shown in English with a note. READING • Dark theme • Text size • Reading progress: the app remembers where you stopped and takes you back • Search inside the handbook • Links inside articles open the article they name, not a browser HONESTLY No ads, no accounts, no analytics, no tracking. The app does not need the internet to work. The react.dev documentation is licensed under CC BY 4.0.
Screenshots
Verdict
The clearest difference is iOS requirement: React Handbook at 15.0 against PocketSpec's 17.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | PocketSpec | React Handbook |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Shun Kiyoura | Mikhail Efanov |
In-app purchases
PocketSpec
No in-app purchases
React Handbook
No in-app purchases









