PrismKit vs Difftray
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
PrismKit
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PrismKit is a developer's Swiss Army knife: a collection of fast tools that run entirely on your iPhone and iPad ā offline, with nothing ever sent to a server. Paste a production token, a private config, or any sensitive data with confidence. Everything is processed locally on your device. TOOLS INCLUDED ⢠JSON ā YAML ā Convert between both formats in either direction. ⢠JSON ā TOON ā Convert to and from TOON, the compact format that saves tokens when working with AI models. ⢠JSON Format ā Format, validate, and minify with error detection. ⢠Base64 ā Encode and decode text. ⢠URL Encode ā Encode and decode URL strings. ⢠JWT Decoder ā Inspect the header and payload, see the expiry, and verify the HMAC signature (HS256, HS384, and HS512). ⢠Hash ā Generate SHA-256, SHA-512, and MD5. ⢠QR Code ā Generate and customize QR codes with colors, a logo, and PNG export. ⢠UUID ā Generate unique identifiers in batches. ⢠Regex Tester ā Test regular expressions and see matches and their groups. ⢠Diff ā Compare two versions of text line by line and spot the differences. BUILT TO BE FAST ⢠Command palette (āK) to jump to any tool in seconds. ⢠Mark your favorite tools to keep them within reach. ⢠Copy any result with a tap. ⢠Optimized for iPhone and iPad, with a two-column layout on larger screens. ⢠Light, dark, and automatic themes. PRIVACY FIRST ⢠100% offline: no tool needs an internet connection. ⢠No accounts, no analytics, no ads, no tracking. ⢠We collect absolutely no data. Made by developers, for developers.
Difftray
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Difftray brings code review to your phone and tablet. Pair it with the open-source Difftray desktop app, then read git diffs, browse every changed file, and leave line-by-line comments ā all over your own local network, with no cloud in between. Difftray is a companion app. It works alongside the Difftray desktop app running on your Mac. Scan a QR code once to pair, then pick up any project from the couch, a meeting room, or the other side of the office. REVIEW DIFFS ANYWHERE Read inline diffs with real syntax highlighting, sized for small screens. See additions and deletions at a glance, move between changes, and mark each file reviewed as you go. BROWSE CHANGED FILES Step through every changed file in a project and see exactly what moved, with per-file and total added/removed line counts. HAND OFF TO YOUR CODING AGENT Leave comments on the lines that need work, then export them as an agent-ready prompt. Copy it or share it straight into your AI coding agent so the fixes are queued up before you're back at your keyboard. ALL YOUR PROJECTS Every project open on your desktop is one tap away on your phone or tablet. PAIR LOCALLY, STAY PRIVATE Connect by scanning a QR code or entering a short code ā no account, no sign-up. Your phone talks directly to your own computer over local Wi-Fi, or over your private Tailscale network when you're away from your desk. Pairing is end-to-end encrypted, and your code never touches a server we run. REQUIREMENTS Difftray requires the free, open-source Difftray desktop app with its companion server enabled. This mobile app is a companion to that desktop app and does not work on its own. Pair your phone, step away from your desk, and keep reviewing. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: Difftray at 16.4 against PrismKit's 26.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | PrismKit | Difftray |
|---|---|---|
| Price | Free | Free |
| Update frequency | ā | Every 11 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 16.4 ā better |
| Further details ā not scored | ||
| Size | 6 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | JUAN DE DIOS FRAUSTO RAMIREZ | Marco Gomiero |
In-app purchases
PrismKit
No in-app purchases
Difftray
No in-app purchases









