Comparison

Difftray vs Lumen Playground

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Difftray

Features
Read full description

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 — 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 — 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/

About

Lumen Playground

Features
Read full description

Lumen Playground is the living SwiftUI catalog for Lumen UI, a cross-platform primitive design system. Search the public component library, exercise real native controls, and compare Lumen's semantic light and dark themes directly on iPhone or iPad. Every example is built with the same LumenUI package available to application developers. Explore: • Foundations, actions, forms, feedback, data display, navigation, and native presentations • Interactive loading, disabled, selected, validation, overlay, and empty states • Native Dynamic Type, VoiceOver semantics, focus behavior, and platform conventions • Shared Lumen icons, colors, spacing, typography, and visual treatments • Direct links to implementation documentation and public support The catalog works without an account and does not include advertising, analytics, tracking, or data collection.

Screenshots

Difftray4 screens
Lumen Playground4 screens

Verdict

The call

The clearest difference is in-app purchases: Lumen Playground at none against Difftray's 2. On price, update cadence, ads 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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Difftray sells 2 in-app purchases, starting at $19.99 per year. Lumen Playground asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard1 real difference Ā· 5 level
Difftray versus Lumen Playground: the parameters behind the verdict, then further details
ParameterDifftrayLumen Playground
PriceFreeFree
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.416.0 — better
Further details — not scored
Size76 MB13 MB
Age rating4+4+
DeveloperMarco GomieroSantiago Molina Orozco

In-app purchases

2 purchases

Difftray

Subscriptions1
  • Difftray Pro Annual$19.991 Year
One-time1
  • Difftray Pro Lifetime$39.99
None

Lumen Playground

No in-app purchases

Questions

Is Difftray free?
Difftray is free to download, with in-app purchases available.
Is Lumen Playground free?
Lumen Playground is free to download, with no in-app purchases.
Do Difftray or Lumen Playground have ads?
Neither Difftray nor Lumen Playground shows ads.
Which is updated more often, Difftray or Lumen Playground?
Difftray ships an update every 2 weeks, and Lumen Playground every 2 weeks. Most recently, Difftray was updated on October 28, 2026 and Lumen Playground on October 25, 2026.

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