# System Activity Monitors vs Data Cellular Counter

The clearest difference is review sentiment: System Activity Monitors at 76% against Data Cellular Counter's 18%. System Activity Monitors also leads on rating (4.2 vs 2.3) and ads (none vs shown). Data Cellular Counter's advantage is in-app purchases (none vs 4). On price, device support and iOS requirement there is nothing between them.

Both are free to download. System Activity Monitors sells 4 in-app purchases, starting at $3.99 per 7 days. Data Cellular Counter asks for nothing beyond the download.

System Activity Monitors holds the better App Store score, 4.2 against 2.3. That said, the two scores are not equally well evidenced: System Activity Monitors has 774 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 76% of System Activity Monitors's written reviews are positive against 18% of Data Cellular Counter's.

System Activity Monitors ships an update every 3 months, Data Cellular Counter every 6 months. The most recent releases landed on September 7, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | System Activity Monitors | Data Cellular Counter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (774 ratings)](https://appshunter.io/ios/app/system-activity-monitors/id386118145/reviews)** | [2.3 (6 ratings)](https://appshunter.io/ios/app/data-cellular-counter/id706830921/reviews) |
| Number of ratings | **774** | 6 |
| Positive reviews | **76.0% of reviews** | 18.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 28 MB | 7 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tekton Technologies (P) Ltd.](https://appshunter.io/developer/343534621) | [Emanuele Floris](https://appshunter.io/developer/597490842) |

## What reviewers say

### System Activity Monitors

[App page](https://appshunter.io/ios/app/system-activity-monitors/id386118145)

Monitor your device's health with this comprehensive tool. Track memory, battery performance, storage, and network details. Get detailed camera information and helpful battery-saving tips to optimize your iPhone.

**Highlights:** Memory usage tracking, Battery performance monitoring, Device IP and hardware address, Battery saving tips, Used and free space indicator, Detailed camera information, System and hardware specs

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sysmon Pro | $3.99 | per 7 days |
| Sysmon Pro | $6.99 | per month |
| Sysmon Pro | $29.99 | per year |
| Real Time Graphs | $2.99 | one-time |

**What reviewers like**

- 💯 Excellent app
- 🎆 Great app
- 🔒 Respects privacy
- 🔋 Helpful battery tips
- 👍 Simple and straightforward

**What reviewers complain about**

- 🐛 Buggy updates
- 💰 Subscription-based model
- 🔒 Privacy concerns due to required login
- 🔍 Limited functionality for free version
- 🔍 Inaccurate device information

**Reported bugs**

- Crashes on certain devices
- Login/registration issues
- Incorrect memory/CPU usage reporting

**Requested features**

- Ability to close/manage running apps
- More detailed app-level usage breakdown
- Dark mode option
- Widgets for quick access
- Ability to reclaim memory/free up storage


### Data Cellular Counter

[App page](https://appshunter.io/ios/app/data-cellular-counter/id706830921)

Monitor your mobile data usage in real-time to avoid exceeding limits. This app provides accurate readings for 3G/LTE and WiFi, offering personalized settings for worry-free mobile use. It works independently of your service provider.

**Highlights:** Real-time data usage tracking, 3G/LTE and WiFi monitoring, Personalized settings, Independent of service provider, Accurate data readings

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is System Activity Monitors free?

System Activity Monitors is free to download, with in-app purchases available.

### Is Data Cellular Counter free?

Data Cellular Counter is free to download, with no in-app purchases.

### Which has better reviews, System Activity Monitors or Data Cellular Counter?

System Activity Monitors is rated higher. System Activity Monitors averages 4.2 out of 5 from 774 ratings, while Data Cellular Counter averages 2.3 from 6 ratings.

### Do System Activity Monitors or Data Cellular Counter have ads?

Data Cellular Counter shows ads; System Activity Monitors does not.

### Which is updated more often, System Activity Monitors or Data Cellular Counter?

System Activity Monitors ships an update every 3 months, and Data Cellular Counter every 6 months. Most recently, System Activity Monitors was updated on September 7, 2026 and Data Cellular Counter on September 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*