# System Activity Monitors vs KuLight

The clearest difference is review sentiment: System Activity Monitors at 76% against KuLight's 20%. System Activity Monitors also leads on rating (4.2 vs 2.8) and ratings volume (774 vs 6). KuLight's advantage is in-app purchases (none vs 4) and update cadence (every 2 weeks vs every 3 months). On price, ads and device support 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. KuLight asks for nothing beyond the download.

System Activity Monitors holds the better App Store score, 4.2 against 2.8. 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 20% of KuLight's.

System Activity Monitors ships an update every 3 months, KuLight every 2 weeks. The most recent releases landed on October 13, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | System Activity Monitors | KuLight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (774 ratings)](https://appshunter.io/ios/app/system-activity-monitors/id386118145/reviews)** | [2.8 (6 ratings)](https://appshunter.io/ios/app/kulight/id987060756/reviews) |
| Number of ratings | **774** | 6 |
| Positive reviews | **76.0% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 2 MB |
| Requires iOS | 13.0 | **7.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tekton Technologies (P) Ltd.](https://appshunter.io/developer/343534621) | [Shenzhen Macrothings Technology Co., Ltd.](https://appshunter.io/developer/906678336) |

## 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


### KuLight

[App page](https://appshunter.io/ios/app/kulight/id987060756)

Control Bluetooth LED lights with your phone to create custom color effects, gradients, and dynamic light shows. Receive phone call notifications with flashing lights and sync your lights with music or microphone input.

**Highlights:** Customizable LED colors, Gradient and flashing effects, Phone call flashing alerts, Music and microphone synchronization, Bluetooth connectivity

**Features:** macOS Compatibility

**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 KuLight free?

KuLight is free to download, with no in-app purchases.

### Which has better reviews, System Activity Monitors or KuLight?

System Activity Monitors is rated higher. System Activity Monitors averages 4.2 out of 5 from 774 ratings, while KuLight averages 2.8 from 6 ratings.

### Do System Activity Monitors or KuLight have ads?

Neither System Activity Monitors nor KuLight shows ads.

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

System Activity Monitors ships an update every 3 months, and KuLight every 2 weeks. Most recently, System Activity Monitors was updated on October 13, 2026 and KuLight on September 30, 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.*