App Debug Assistant vs Diff Checker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
App Debug Assistant
A comprehensive toolkit for developers and testers to streamline debugging. It offers device information, sensor data, Bluetooth debugging, file transfer, and QR code tools for efficient workflow and bug reporting.
- Device information viewer
- Sensor data readings
- Bluetooth BLE scanning and connection
- Wireless file transfer
- Real-time text synchronization
- QR code scanner and generator
- APNs push notification testing
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App Debug Assistant is a versatile toolkit designed for developers and testers, streamlining your daily debugging workflow. 【Device Info】 • IDFA Viewer - Instantly access the device advertising identifier with one-tap copy for attribution testing • Device Details - View comprehensive device info including model, screen, memory, storage, battery, and system version 【Sensor Debugging】 • Motion & Attitude - Accelerometer, gyroscope, magnetometer, and fused device-motion data with live multi-axis readings for motion- and AR-related debugging • Environment & Activity - Barometer (pressure and relative altitude), pedometer, and motion-activity recognition for health- and context-aware features • Location & Heading - GPS-style location plus true and magnetic heading for maps and compass-style behavior • Device & Ambient Status - Proximity, screen brightness, device orientation, thermal state, and microphone level metering to troubleshoot hardware, sensors, and permissions 【Bluetooth Debugging】 • Device Scan - Discover nearby BLE peripherals with live name, identifier, and RSSI to quickly find test targets • Connect & GATT - Browse services and characteristics after connecting; read, write, and subscribe to notifications to verify protocols and payloads • Debug Helpers - Hex data display and one-tap UUID copy to speed up firmware and app integration 【Special Tools】 • Text Sync - Real-time text synchronization between your phone and computer over LAN • File Transfer - Wirelessly transfer files and photos via browser on the same WiFi network • APNs - Quickly test the push notification function, supporting both P12 and P8 certificate formats for easy debugging of push services. 【QR Code Tools】 • QR Scanner - Scan with camera or recognize from photos, quickly open links or copy content • QR Generator - Create QR codes from any text or URL for easy sharing 【Use Cases】 • Ad SDK Testing - Quick IDFA access for attribution verification • Device Debugging - Sync test URLs and config parameters to your phone • Bug Reporting - Copy device info for complete issue reports • Cross-device Workflow - Fast file and text transfer between devices • Sensor Debugging - Verify raw readings and permission flows on real hardware to narrow down sensor-related issues faster • Bluetooth Debugging - Scan and connect to BLE peripherals to validate GATT services, characteristics, and data exchange 【Secure & Reliable】 • Local data storage to protect your privacy and sensitive information Simple. Efficient. Essential for developers.
Diff Checker
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Compare two versions of any text and see exactly what changed — line by line and word by word, highlighted the instant you paste. Most "spot the difference" attempts end in squinting at two walls of text side by side. DiffCheck does the reading for you: paste an old version and a new one, and every addition turns green, every deletion turns red, so the change jumps out in a second. It works on code, config files, contracts, and plain prose alike — and it never sends a single character off your device. WHAT YOU GET - See every change at a glance — additions in green, deletions in red, nothing missed - Switch between line-level and word-level diffs to catch even a single edited character - Read changes in a clean side-by-side split view that lines the two versions up - Copy a ready-to-use unified patch of any comparison straight to your clipboard - Keep a local history of past comparisons so you can revisit what changed and when - Save reusable snippets and sample diffs to compare the same text again fast PERFECT FOR - Developers reviewing code, pull requests, and config changes on the go - Writers and editors checking edits between two drafts - Legal and business users comparing contract or document revisions - Students learning how diffs and the unified patch format work WHY NOT JUST EYEBALL IT Reading two versions by hand is where mistakes hide — a flipped number, a deleted clause, a changed flag. DiffCheck compares them character by character so you catch the change you would have scrolled right past. PRIVACY Your text never leaves your device. There are no accounts, no servers, and no tracking — every comparison happens fully offline. FULL ACCESS DiffCheck is free to compare text. Full Access unlocks word-level diffs, the side-by-side split view, saved comparison history, and unified patch export. Choose the plan that fits: - Weekly plan - Yearly plan - Lifetime one-time purchase Payment is charged to your Apple ID at confirmation of purchase. Subscriptions auto-renew unless turned off at least 24 hours before the end of the current period; manage or cancel anytime in your App Store settings. The lifetime option is a one-time purchase. Paste two versions now and see what changed in a second. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? https://web-levi.web.app/#contact
Screenshots
Verdict
The clearest difference is in-app purchases: App Debug Assistant at none against Diff Checker's 2. App Debug Assistant also leads on update cadence (weekly vs every 2 months). Diff Checker's advantage is ads (none vs shown). On price, device support and iOS requirement 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. Diff Checker sells 2 in-app purchases, starting at $2.99 per 7 days. App Debug Assistant asks for nothing beyond the download.
App Debug Assistant ships an update weekly, Diff Checker every 2 months. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.
| Parameter | App Debug Assistant | Diff Checker |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Weekly — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 32 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Junjie Li | Phuc Pham |
In-app purchases
App Debug Assistant
No in-app purchases
Diff Checker
- Weekly$2.997 Days
- Yearly$14.991 Year









