Diskspace 3 vs SYSMonitor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diskspace 3
Monitor your iPhone and iPod Touch storage with detailed insights into total, available, and used space. Receive timely notifications when storage drops below a set threshold and customize the app's appearance.
- Total, available, and used storage display
- Today Widget for quick access
- Storage threshold notifications
- Customizable app icons
- iPhone and iPod Touch compatibility
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Diskspace provides information about the total, currently available and used storage on your iPhone and iPod Touch. Pro Features: • Today Widget: This handy Widget displays the available storage on your device right on your today-screen. • Notifications: Receive a notification if the available storage on your device drops below your specified threshold. • Custom App Icon: Choose among a variety of custom app icons.
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.
Screenshots
Verdict
The clearest difference is rating: Diskspace 3 at 4.7 against SYSMonitor's 3.6. Diskspace 3 also leads on review sentiment (82% vs 40%) and ads (none vs shown). On price, in-app purchases, monetization model 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. Diskspace 3 sells 1 one-off in-app purchase and SYSMonitor sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Diskspace 3 holds the better App Store score, 4.7 against 3.6. That said, the two scores are not equally well evidenced: Diskspace 3 has 949 ratings behind it against 38, so its average is the more settled of the two. Written reviews point the same way: 82% of Diskspace 3's written reviews are positive against 40% of SYSMonitor's.
Diskspace 3 ships an update every 5 weeks, SYSMonitor every 5 months. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.
| Parameter | Diskspace 3 | SYSMonitor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (949 ratings) — better | 3.6 (38 ratings) |
| Positive reviews | 82.3% of reviews — better | 39.9% of reviews |
| Number of ratings | 949 — better | 38 |
| Update frequency | Every 5 weeks — better | Every 5 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 2 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Dominic Rodemer | 泽辉 王 |
Customer experience
Diskspace 3
SYSMonitor
Bugs and requests
Diskspace 3
Reported bugs
2 issues- Incompatibility with newer iOS versions
- Widget not working as expected
Requested features
3 requests- Breakdown of storage usage by file type (apps, photos, music, etc.)
- Ability to manage storage from within the app
- Customization options for the display
SYSMonitor
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Diskspace 3
- Diskspace Pro$0.99
SYSMonitor
- Permanently Remove ads$1.99
Questions
Is Diskspace 3 free?
Is SYSMonitor free?
Which has better reviews, Diskspace 3 or SYSMonitor?
Do Diskspace 3 or SYSMonitor have ads?
Which is updated more often, Diskspace 3 or SYSMonitor?
Other comparisons
