Comparison

Mobile Master vs CPU Detector

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

Head to head
About

Mobile Master

This free utility app provides detailed information about your device's hardware and software. It measures real CPU frequency, frequency reduction, and offers insights into your screen, battery, network, GPU, RAM, and sensors.

Highlights
  • Measure real CPU frequency
  • Monitor frequency reduction
  • View CPU, GPU, and RAM details
  • Check network speed and IP
  • Display battery design capacity
  • Access sensor data
Features
Read full description

Quickly and accurately measure real cpu frequency and frequency reduction Mobile Master is a free tool to provide information about your device - cpu , operating system , memory, GPU, network and battery. - CPU : Processor , real frequency, frequency ratio,frequency reduction, etc. - General : Screen resolution, size, density, etc. - Battery : Desigin capacity. - Network : IP , download/upload speed , etc. - GPU : GPU Type , extentions. - RAM : Total ram , used ram , etc. - Sensors: Acceleration,rotation,magnetic field,pressure and distance Terms of Use:https://m.591master.com/m/uiforum/getpage.html?key=cputerms Privacy Policy:https://m.591master.com/m/uiforum/getpage.html?key=cpuprivacy

About

CPU Detector

Access detailed hardware information on your iPhone or iPad without jailbreaking. Monitor CPU usage, memory, battery health, sensor data, and network details in real-time. Ideal for tech enthusiasts and developers seeking in-depth device insights.

Highlights
  • Real-time CPU usage and frequency
  • Memory usage monitoring
  • Battery health and voltage check
  • Device model and storage details
  • Operating system and screen information
  • Network information and speed
Features
Read full description

Unlock your iPhone/iPad’s secrets! Monitor CPU model, memory usage, battery health, and sensor data in real-time. No jailbreak needed. Perfect for tech geeks & developers! CPU Detector is a tool for querying CPU real-time master frequency CPU Detector has four major functions: 1. CPU: query CPU real-time information, CPU usage and RAM memory related information; 2. device: display the specific type and name of your device, display your device storage space related information, display operating system version information and screen information; 3. battery: check the current battery state and voltage; 4. network: displays your device's current network information, queries real-time network speed, and can also show cumulative usage traffic.

Screenshots

Mobile Master4 screens
CPU Detector4 screens

Verdict

The call

The clearest difference is update cadence: Mobile Master at every 6 days against CPU Detector's every 2 months. On price, rating, review sentiment and ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mobile Master sells 3 in-app purchases, starting at $0.49 per month and CPU Detector sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Mobile Master against 4.6 for CPU Detector. Both are backed by a comparable volume of ratings — 1.2K and 427 respectively. Written reviews are what separate them: 72% of Mobile Master's written reviews are positive against 76% of CPU Detector's.

UpkeepUpdate frequency

Mobile Master ships an update every 6 days, CPU Detector every 2 months. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

Scorecard1 real difference · 9 level
Mobile Master versus CPU Detector: the parameters behind the verdict, then further details
ParameterMobile MasterCPU Detector
PriceFreeFree
Rating4.5 (1.2K ratings)4.6 (427 ratings) — better
Positive reviews72.3% of reviews76.0% of reviews — better
Number of ratings1.2K — better427
Update frequencyEvery 6 days — betterEvery 2 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size47 MB97 MB
Age rating4+4+
Developer东海 刘楠 夏

Customer experience

Mobile Master

All ratings1,225 ratings
Positive87.9%
Neutral4.7%
Negative7.3%
Written reviews137 reviews
Positive72.3%
Neutral6.6%
Negative21.2%

CPU Detector

All ratings426 ratings
Positive89.7%
Neutral2.3%
Negative8.0%
Written reviews75 reviews
Positive76.0%
Neutral4.0%
Negative20.0%

Bugs and requests

Mobile Master

Not enough reviews yet to summarise bugs or requests.

CPU Detector

Reported bugs

12 issues
  • Takes too much time to load
  • Not working on iPad pro
  • App not opening, stuck on start
  • Not working on iPad mini 6, only stuck on splash screen
  • iPad mini six無法使用
Show 7 more
  • Garbage, advertisements bugging usability
  • Sem suporte para o iPad Pro M1
  • Didownload gak ada isinya
  • فاشل جدًا قليل التفاصيل
  • Does not fully support some recent iPads
  • Interface rendering issues
  • Only shows CPU load percentages

Requested features

2 requests
  • Change language
  • More actionable information

In-app purchases

3 purchases

Mobile Master

Subscriptions2
  • Pro Monthly$0.491 Month
  • Pro Annual$2.991 Year
One-time1
  • Remove ads$1.99
1 purchases

CPU Detector

One-time1
  • Permanently Remove Ads$0.99

Questions

Is Mobile Master free?
Mobile Master is free to download, with in-app purchases available.
Is CPU Detector free?
CPU Detector is free to download, with in-app purchases available.
Which has better reviews, Mobile Master or CPU Detector?
CPU Detector is rated higher. Mobile Master averages 4.5 out of 5 from 1.2K ratings, while CPU Detector averages 4.6 from 427 ratings.
Do Mobile Master or CPU Detector have ads?
Both Mobile Master and CPU Detector show ads.
Which is updated more often, Mobile Master or CPU Detector?
Mobile Master ships an update every 6 days, and CPU Detector every 2 months. Most recently, Mobile Master was updated on September 24, 2026 and CPU Detector on September 10, 2026.

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