Phone Tester vs Developer Toolbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Phone Tester
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Device Monitor: iDevice is a toolbox to check your iPhone or iPad. It shows your device specs and live memory, storage and battery readings, and lets you run quick hardware tests by eye and ear. --- WHAT IT DOES --- - Device info Model, chip, RAM, storage, screen and iOS version in one place. - Live readings Battery level and charging state, memory, storage, connection type and thermal state, plus a live graph of the CPU used by this app. - Hardware tests Dead pixel test with solid colours, speaker tones, microphone level, bubble level, compass, barometer, proximity sensor, light meter (relative brightness), GPS accuracy, Bluetooth scanner, keyboard and gesture tests. - Export and widgets Export your device specs as a PDF and add Home Screen and Lock Screen widgets. - Pro (optional subscription) Removes ads and unlocks extra tools: decibel meter, gyroscope, magnetometer, metal detector, pedometer, altitude, thermal state, touch latency, haptics, NFC check, Face ID test, charging analyzer, more display tests, CSV and JSON export and PDF without watermark. --- GOOD TO KNOW --- It does not read battery health or charge cycles: iOS does not give them to apps (see Settings > Battery). Some tests need the right hardware, for example a barometer or a proximity sensor. COMMON QUESTIONS Does it need an account or internet? No account. Everything is read from the device itself; only the optional latency test uses the internet. What can it actually measure? Whatever the device's own sensors expose: level, compass, magnetometer, barometer, gyroscope, ambient light (relative, not lux), microphone level, battery level, storage, memory and the screen's dead-pixel test. Does it show battery health? No. iOS does not let apps read battery health or cycle count. Check Settings > Battery > Battery Health. Is the metal detector real? It reads the magnetometer, the same sensor the compass uses. It reacts to ferrous metal and to magnets. It is not an industrial detector and it will not find gold. Is the decibel reading accurate? It is the microphone's reading, uncalibrated. Good for comparing one room to another, not for a legal noise measurement. Does it change anything on my phone? No. It reads and reports; it does not clean, optimise or modify anything. Terms of Use: https://masaapps360.com/devicemonitor/terms/ Privacy Policy: https://masaapps360.com/devicemonitor/privacy/
Developer Toolbox
Access detailed information about your iOS device, including IDFA and IP address. Test device sensors and gather technical data.
- Access IDFA
- View IP address
- Test device sensors
- iOS device information
- Developer tools
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With this app, you can easily access your iOS device's information, including IDFA and IP address, and test its sensors.
Screenshots
Verdict
Phone Tester and Developer Toolbox are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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 Tester sells 4 in-app purchases, starting at $0.99 per 7 days and Developer Toolbox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Phone Tester ships an update every 3 weeks, Developer Toolbox every 2 weeks. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.
| Parameter | Phone Tester | Developer Toolbox |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 12 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Grima Hdez | 立豪 林 |
In-app purchases
Phone Tester
- Device Monitor Pro Weekly3 Days trial$0.997 Days
- Device Monitor Pro Monthly$1.991 Month
- Device Monitor Pro Yearly$2.991 Year
- Device Monitor Pro Lifetime$3.99
Developer Toolbox
- Remove Ads$1.99
Questions
Is Phone Tester free?
Is Developer Toolbox free?
Do Phone Tester or Developer Toolbox have ads?
Which is updated more often, Phone Tester or Developer Toolbox?
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