SMART Testz vs DeviceTestApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SMART Testz
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Test the basic functions of the phone and provide a grade.
DeviceTestApp
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DeviceTestApp is a professional iPhone hardware diagnostic tool designed for device inspection, repair, and second-hand trading. Launch a single test to automatically complete 29 core hardware checks and quickly determine device health. 【Key Features】 • 29 Comprehensive Tests: Charging, Wi-Fi, Bluetooth, Network, Touchscreen, LCD, Multi-touch, Face ID, Front/Bottom/Rear Microphones, Speaker, Vibration Motor, Standard/Telephoto/Ultra-wide/Front Cameras, Flashlight, NFC, Phone Call, Proximity Sensor, Volume Up/Down, Power Button, Mute Switch, Earpiece, Gyroscope, GPS Location • Automated Pipeline: Most tests auto-detect pass or fail, minimizing manual operation • Live Face Detection: Front camera live preview with TrueDepth sensor hardware-level validation • Report Upload: One-tap upload test reports to your PC management system • PC Remote Control: Remotely start tests, retest failed items, and adjust test order from your computer • Multi-language: Automatically switches between Chinese and English based on system language • Custom Order: Drag to rearrange test execution order based on your workflow • USB Offline Mode: Export test results via USB even without network 【Use Cases】 • Pre-sale inspection for second-hand phones • Post-repair functionality verification • Factory production line quality control • Enterprise batch device management 【Privacy】 This app only temporarily accesses camera, microphone, Bluetooth, and location hardware during testing. No personal data is collected, stored, or uploaded. All test data is saved locally or sent only to the user's self-hosted LAN server.
Screenshots
Verdict
The clearest difference is iOS requirement: SMART Testz at 12.0 against DeviceTestApp's 15.0. On price, update cadence, ads and in-app purchases 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.
SMART Testz ships an update fortnightly, DeviceTestApp every 11 days. The most recent releases landed on September 13, 2026 and September 17, 2026 respectively.
| Parameter | SMART Testz | DeviceTestApp |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 14 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | FutureDial Inc. | GALAXY TELECOM |
In-app purchases
SMART Testz
No in-app purchases
DeviceTestApp
No in-app purchases









