Phone Diagnostics vs Flexible Screen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Phone Diagnostics
Easily test and check all mobile device functionalities. This app is useful before purchasing a device, sending it for repair, or after receiving it back. It also helps you locate nearby repair shops.
- Test device functionalities
- Check hardware before buying
- Verify repairs
- Find local repair shops
- Improve QC processes
- Facilitate trade-in
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Phone diagnostics helps the end user to easily test and check the functionalities of mobile devices before buying, sending to repair shop, or after repair. It helps to find the repair shop near you. This app can also be used by QC in repair shop or refurbish factory. Most of the refurbish/repair factory is using manual QC process. The QC staff tends to skip/miss the test items and some items need several steps to perform one test case. With this app you can improve the quality and productivity of QC process significantly. Contact us for factory version where all steps running automatically, ads are removed and the result is uploaded to factory shop floor control system. You will have real time data for analysis and improve the production. It helps to facilitate the trade-in, enable the another life for the mobile device.
Flexible Screen
This utility allows users to define a specific screen area to function as a browser. You can easily set the desired area by dragging from the top-left to the bottom-right corner. Restart the drag to retry until satisfied.
- Specify screen area for browser
- Drag to define area
- Retry by restarting drag
- Customizable browser window
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You are able to specify the screen area you want to use as a browser! You can specify the area by dragging from top left to bottom right. You can retry various times by simply restarting dragging. Please enjoy!
Screenshots
Verdict
The clearest difference is review sentiment: Phone Diagnostics at 63% against Flexible Screen's 0%. Phone Diagnostics also leads on rating (3.8 vs 3.0) and update cadence (every 2 weeks vs every 3 months). Flexible Screen's advantage is in-app purchases (none vs 1). On price, ads, 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. Phone Diagnostics sells 1 one-off in-app purchase. Flexible Screen asks for nothing beyond the download.
Phone Diagnostics holds the better App Store score, 3.8 against 3.0. That said, the two scores are not equally well evidenced: Phone Diagnostics has 86 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 63% of Phone Diagnostics's written reviews are positive against 0% of Flexible Screen's.
Phone Diagnostics ships an update every 2 weeks, Flexible Screen every 3 months. The most recent releases landed on October 9, 2026 and September 27, 2026 respectively.
| Parameter | Phone Diagnostics | Flexible Screen |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (86 ratings) — better | 3.0 (7 ratings) |
| Positive reviews | 63.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 86 — better | 7 |
| Update frequency | Every 2 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12 | 11.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 14 MB |
| Age rating | 4+ | 17+ |
| Developer | HITEK_NOVA | Jeongsik Lee |
Customer experience
Phone Diagnostics
Flexible Screen
Bugs and requests
Phone Diagnostics
Reported bugs
33 issues- Camera/microphone activity noticed after download
- Charged $149.99 at Apple Store during testing
- NFC check missing
- Repair suggested for skipped NFC test
- Memory tests missing
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- 3D touch test inaccurate
- Multi-touch test only checks for 2 fingers
- Barometer test function not working on iPhones
- Sound test marks iPhone 15 as faulty (when it's not)
- App dials 900 (Sberbank) during testing
- App froze iPhone
- Volume up during microphone test woke up house
- Glitchy on iPad Pro, fails multi-touch test
- Ads block testing area
- Test page won't stay up
- Speaker test plays sound through earpiece on second run
- 900 number test for phone calling function not working
- Tests for features not present (e.g., headphone port on iPhone 8+)
- Developer website is useless, no feature request or bug reporting
- No user support
- Video ad played suddenly and loudly
- Cancelling a test results in a failure
- Latest update is buggy, fires off automated test sequence randomly
- Headset button ad covers it
- 3D Touch only registers to 83%
- Takes away identification data without knowledge
- Ad at the bottom covers headset button
- Multi-tap failed even though it worked
- Flash didn't work after screen repair, app fixed it
- Dead pixels on screen identified
- Zoomed camera lens issue not identified
- App immediately bumps volume and plays music on first launch
- Test results are sometimes incorrect
Requested features
10 requests- Add NFC/antenna tester
- Add memory tests
- Add eSIM check
- Improve 3D Touch test accuracy
- Improve multi-touch test (more than 2 fingers)
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- Add support for blind users (VoiceOver)
- Add option to remove ads via in-app purchase
- Detect phone model to modify test suite
- Test Bluetooth headphone features on newer iPhones
- Provide more detailed battery information (life expectancy, condition)
Flexible Screen
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Phone Diagnostics
- Phone Diagnostics Pro$4.99
Flexible Screen
No in-app purchases
Questions
Is Phone Diagnostics free?
Is Flexible Screen free?
Which has better reviews, Phone Diagnostics or Flexible Screen?
Do Phone Diagnostics or Flexible Screen have ads?
Which is updated more often, Phone Diagnostics or Flexible Screen?
Other comparisons
