SYSMonitor vs Mobile Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SYSMonitor
Monitor your device's performance with real-time insights into CPU, memory, and storage usage. Track network speed, view detailed device information, and access key metrics directly from your Today widget. Understand your device's health and optimize its performance.
- CPU usage monitoring
- Memory (RAM) status
- Storage (ROM) visualization
- Real-time network speed
- Network details (IP, SSID, Ping)
- Basic device information
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*** NEW ***More than just Widget monitoring your iPhone and iPad!!! *** Still thinking about why the phone is so hot,IS the CPU utilization too high? Why the data traffic consumed so quickly? Background processes too much? How much is left of my Storage? The app monitors CPU, MEMORY(RAM), Storage(ROM), Real-time network speed and the other device information. And it can be placed in 'Today' as a widget. Click the widget to get more functions and detailed information about your device. Including: √ Monitor solid color model √, Network # WiFi, DNS, SSID, internal and public network IP address, real-time network speed, Ping test and many other functions. √. Storage(ROM) # Visualization of disk space status and usage. √. CPU # One or more CPU usage updated in real time √. Memory (RAM) # Easy understanding of device memory status. # Visualization of Used, Active, Inactive, Free. √. Basic Info: #Device Name ,Device Model, IOS version, Screen resolution, Memory, Storage, Battery , OpenGL etc.
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.
- 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
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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
Screenshots
Verdict
The clearest difference is rating: Mobile Master at 4.5 against SYSMonitor's 3.6. Mobile Master also leads on review sentiment (72% vs 40%) and update cadence (every 6 days vs every 5 months). On price, ads, in-app purchases and monetization model 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. SYSMonitor sells 1 one-off in-app purchase and Mobile Master sells 3 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.
Mobile Master holds the better App Store score, 4.5 against 3.6. That said, the two scores are not equally well evidenced: Mobile Master has 1.2K ratings behind it against 38, so its average is the more settled of the two. Written reviews point the same way: 40% of SYSMonitor's written reviews are positive against 72% of Mobile Master's.
SYSMonitor ships an update every 5 months, Mobile Master every 6 days. The most recent releases landed on September 29, 2026 and September 24, 2026 respectively.
| Parameter | SYSMonitor | Mobile Master |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (38 ratings) | 4.5 (1.2K ratings) — better |
| Positive reviews | 39.9% of reviews | 72.3% of reviews — better |
| Number of ratings | 38 | 1.2K — better |
| Update frequency | Every 5 months | Every 6 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | 泽辉 王 | 东海 刘 |
Customer experience
SYSMonitor
Mobile Master
In-app purchases
SYSMonitor
- Permanently Remove ads$1.99
Mobile Master
- Pro Monthly$0.491 Month
- Pro Annual$2.991 Year
- Remove ads$1.99
Questions
Is SYSMonitor free?
Is Mobile Master free?
Which has better reviews, SYSMonitor or Mobile Master?
Do SYSMonitor or Mobile Master have ads?
Which is updated more often, SYSMonitor or Mobile Master?
Other comparisons
