Comparison

Phone Tester vs Developer Toolbox

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

Head to head
About

Phone Tester

Features
Read full description

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/

About

Developer Toolbox

Access detailed information about your iOS device, including IDFA and IP address. Test device sensors and gather technical data.

Highlights
  • Access IDFA
  • View IP address
  • Test device sensors
  • iOS device information
  • Developer tools
Features
Read full description

With this app, you can easily access your iOS device's information, including IDFA and IP address, and test its sensors.

Screenshots

Phone Tester4 screens
Developer Toolbox3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

ScorecardNo meaningful differences
Phone Tester versus Developer Toolbox: the parameters behind the verdict, then further details
ParameterPhone TesterDeveloper Toolbox
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsYesYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size12 MB22 MB
Age rating4+4+
DeveloperGrima Hdez立豪 林

In-app purchases

4 purchases

Phone Tester

Subscriptions3
  • Device Monitor Pro Weekly3 Days trial$0.997 Days
  • Device Monitor Pro Monthly$1.991 Month
  • Device Monitor Pro Yearly$2.991 Year
One-time1
  • Device Monitor Pro Lifetime$3.99
1 purchases

Developer Toolbox

One-time1
  • Remove Ads$1.99

Questions

Is Phone Tester free?
Phone Tester is free to download, with in-app purchases available.
Is Developer Toolbox free?
Developer Toolbox is free to download, with in-app purchases available.
Do Phone Tester or Developer Toolbox have ads?
Both Phone Tester and Developer Toolbox show ads.
Which is updated more often, Phone Tester or Developer Toolbox?
Phone Tester ships an update every 3 weeks, and Developer Toolbox every 2 weeks. Most recently, Phone Tester was updated on October 24, 2026 and Developer Toolbox on October 11, 2026.

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