# System Activity Monitors vs Battery Test

The clearest difference is review sentiment: System Activity Monitors at 76% against Battery Test's 0%. System Activity Monitors also leads on rating (4.2 vs 2.1) and ratings volume (774 vs 20). On price, update cadence, ads and in-app purchases 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 and Battery Test sells 21 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

System Activity Monitors holds the better App Store score, 4.2 against 2.1. That said, the two scores are not equally well evidenced: System Activity Monitors has 774 ratings behind it against 20, 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 0% of Battery Test's.

System Activity Monitors ships an update every 3 months, Battery Test every 2 months. The most recent releases landed on September 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | System Activity Monitors | Battery Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (774 ratings)](https://appshunter.io/ios/app/system-activity-monitors/id386118145/reviews)** | [2.1 (20 ratings)](https://appshunter.io/ios/app/battery-test/id1531831437/reviews) |
| Number of ratings | **774** | 20 |
| Positive reviews | **76.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 28 MB | 108 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tekton Technologies (P) Ltd.](https://appshunter.io/developer/343534621) | [Autel Intelligent Technology Co., Ltd.](https://appshunter.io/developer/770747094) |

## 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


### Battery Test

[App page](https://appshunter.io/ios/app/battery-test/id1531831437)

This app, paired with specific hardware testers, provides quick health checks for vehicle batteries and electrical systems. It allows technicians to view accurate test results and understand the condition of batteries, starters, and generators.

**Highlights:** Vehicle battery health check, Electrical system testing, Starter and generator analysis, Accurate test result viewing, Hardware tester integration

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

**In-app purchases (21)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Benz | $12.99 | one-time |
| Bmw | $12.99 | one-time |
| Dodge | $12.99 | one-time |
| Ford | $12.99 | one-time |
| GM | $12.99 | one-time |
| Honda | $12.99 | one-time |
| Kia | $12.99 | one-time |
| Mazda | $12.99 | one-time |
| Nissan | $12.99 | one-time |
| YQ_VolksWagen | $12.99 | one-time |
| Zotye | $12.99 | one-time |
| ZAZ | $12.99 | one-time |
| Vaz | $12.99 | one-time |
| Subaru | $12.99 | one-time |
| Benz_Sprinter | $12.99 | one-time |
| Lexus | $12.99 | one-time |
| JEEP | $12.99 | one-time |
| Toyota | $12.99 | one-time |
| Mini | $12.99 | one-time |
| Chrysler | $12.99 | one-time |
| VolksWagen | $12.99 | one-time |


## Frequently asked questions

### Is System Activity Monitors free?

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

### Is Battery Test free?

Battery Test is free to download, with in-app purchases available.

### Which has better reviews, System Activity Monitors or Battery Test?

System Activity Monitors is rated higher. System Activity Monitors averages 4.2 out of 5 from 774 ratings, while Battery Test averages 2.1 from 20 ratings.

### Do System Activity Monitors or Battery Test have ads?

Neither System Activity Monitors nor Battery Test shows ads.

### Which is updated more often, System Activity Monitors or Battery Test?

System Activity Monitors ships an update every 3 months, and Battery Test every 2 months. Most recently, System Activity Monitors was updated on September 7, 2026 and Battery Test on September 22, 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.*