System Activity Monitors vs KuLight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
System Activity Monitors
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.
- 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
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The System Activity Monitor stands out as the most inclusive health check application available on the App Store. It diligently tracks memory usage, battery performance, device details such as IP address and hardware address, provides battery tips, furnishes comprehensive system information, and indicates used space on your iOS device. Now, it comes with enhanced camera information, offering detailed insights into your iPhone camera system, covering telephoto, wide, and ultra-wide lenses. This app serves as a precise tool to monitor battery life, delivering timely tips that maximize your battery usage for an optimal and prolonged battery life. KEY FEATURES: 1. Battery tips are shown to help save battery life while using the iPhone. 2. Tap battery to see the battery capacity for your favorite apps. 3. Shows the used and free space on your iPhone/iPod. 4. Shows the IP address acquired, and hardware address of your device. 5. Displays a long list of device information, like physical specs, hardware info, and many more. These are the different views on the App. Memory view: Shows the used and free iPhone memory available as used by other apps. This is shown in an excellent speedometer animation view. Close out the other apps, and see the memory being reclaimed in this app, when the speedometer shows the free memory available increase. This has an LED indicator with blue, green, yellow and red colors indicating the amount of memory being used. Battery view: This view shows the battery available for discharge, how much time to recharge to make it full, and when it is charged to FULL, displays an indication, as "FULLY CHARGED", as opposed to quick charge. It has glow panels on the top to let you know, how much battery is available. Tap the battery on the fill, to show the detailed break up of battery availability for 3G talk time, browsing, videos, games etc. Animated battery charging with current flashes inside the battery. Space used view: This is shown as a pie-chart that presents the used and free space available on your iOS device. Info view: Now it shows a lot more device information, like system information, camera information, display, hardware and physical characteristics. It shows whether you device is connected to Wi-Fi or cellular and its IP address. ## Few of our user TESTIMONIALS ## $ Way cool This is a terrific system tracker. - Macquest $ Definitely get this App.! Love the cool dashboard. Tells you what's going on in the Apple brain in your iPad or iPhone. This App rules. - Battyguy $ Simple App ! Great tool! Helps to keep your standby time ridiculously long and device running smoothly. - Spader1969. $ I have tried many products like this one and so far I keep coming back to this one. - Markeith3000 Subscription Info Sysmon, our paid subscription product, is paid per year for annual subscriptions, per month for monthly subscriptions, and per week for weekly subscriptions. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Account will be charged for renewal within 24 hours prior to the end of the current period an annual subscription, monthly subscription, and weekly subscription, as the case may be. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription, where applicable.” Privacy policy and terms of use https://tektontek.com/termsofuse.php STAY UPDATED - Website - https://sysmon.tektontek.com Twitter - @AppLifeStyle Facebook - facebook.com/tektontek
KuLight
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.
- Customizable LED colors
- Gradient and flashing effects
- Phone call flashing alerts
- Music and microphone synchronization
- Bluetooth connectivity
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本应用与蓝牙LED灯配套使用,能够让LED灯变幻出各种颜色,并能自由定制彩色渐变、闪烁等特效。当有手机来电时,能够让与之连接的LED灯闪烁,实现来电提醒的功能。同时可让灯光随着音乐和麦克风声音动态变化。
Screenshots
Verdict
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.
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. 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.
| Parameter | System Activity Monitors | KuLight |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (774 ratings) — better | 2.8 (6 ratings) |
| Positive reviews | 76.0% of reviews — better | 20.0% of reviews |
| Number of ratings | 774 — better | 6 |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| 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 | 7.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Tekton Technologies (P) Ltd. | Shenzhen Macrothings Technology Co., Ltd. |
Customer experience
System Activity Monitors
KuLight
Bugs and requests
System Activity Monitors
Reported bugs
3 issues- Crashes on certain devices
- Login/registration issues
- Incorrect memory/CPU usage reporting
Requested features
5 requests- 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
Not enough reviews yet to summarise bugs or requests.
In-app purchases
System Activity Monitors
- Sysmon Pro$3.997 Days
- Sysmon Pro3 Days trial$6.991 Month
- Sysmon Pro7 Days trial$29.991 Year
- Real Time Graphs$2.99
KuLight
No in-app purchases
Questions
Is System Activity Monitors free?
Is KuLight free?
Which has better reviews, System Activity Monitors or KuLight?
Do System Activity Monitors or KuLight have ads?
Which is updated more often, System Activity Monitors or KuLight?
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