SYSMonitor vs Ax Performance Test
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.
Ax Performance Test
This app measures your device's CPU and GPU performance by dropping cubes until a target frame rate is reached. It calculates a total score based on cube count and polygons rendered per second, displaying detailed performance metrics.
- CPU performance measurement
- GPU performance measurement
- Rigid body physics simulation
- Visible polygons per second display
- Total performance score calculation
- GPU chip leaderboards
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Simple non-deterministic cube performance test. Measures CPU and GPU performance. Drops cubes until the frame rate averages less than 60. Cubes stack and tumble following rigid body physics properties. CPU performance is measured via physics performance and GPU is measured via the number of cubes your device can render. Displays visible polygons per second. A total score is calculated based on the number of cubes times the polygons per second. Leaderboards for each individual GPU chip.
Screenshots
Verdict
The clearest difference is rating: Ax Performance Test at 5.0 against SYSMonitor's 3.6. Ax Performance Test also leads on in-app purchases (none vs 1) and ads (none vs shown). SYSMonitor's advantage is ratings volume (38 vs 4). On price and device support 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. Ax Performance Test asks for nothing beyond the download.
Ax Performance Test holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: SYSMonitor has 38 ratings behind it against 4, so its average is the more settled of the two.
SYSMonitor ships an update every 5 months, Ax Performance Test every 3 weeks. The most recent releases landed on October 9, 2026 and September 25, 2026 respectively.
| Parameter | SYSMonitor | Ax Performance Test |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (38 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 39.9% of reviews | — |
| Number of ratings | 38 — better | 4 |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | 泽辉 王 | Les Bird |
Customer experience
SYSMonitor
Ax Performance Test
In-app purchases
SYSMonitor
- Permanently Remove ads$1.99
Ax Performance Test
No in-app purchases
Questions
Is SYSMonitor free?
Is Ax Performance Test free?
Which has better reviews, SYSMonitor or Ax Performance Test?
Do SYSMonitor or Ax Performance Test have ads?
Which is updated more often, SYSMonitor or Ax Performance Test?
Other comparisons
