Thermals vs Network Check
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thermals
Monitor your device's thermal state and processor activity to diagnose performance issues. Understand why your phone might be running slowly, charging slowly, or have reduced brightness due to overheating. Export data for further analysis with other development tools.
- Displays device thermal state
- Shows active processor count
- Monitors device uptime
- Troubleshoots performance issues
- Helps diagnose slow charging
- Identifies brightness limitations
- Exports raw data for analysis
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Phone running slowly, charging slowly or low brightness? See if your device is overheating using Thermals. Thermals displays your device’s thermal state, as well as how many processors are active on your device and its uptime, as reported by iOS. Thermals helps troubleshoot: • Poor performance — iOS reduces processor speed and potentially disables processors temporarily when the device is hot. • Slow charging — battery charging causes a lot of heat and iOS can limit charging speed to reduce the additional heat that might make a device too hot. • Low maximum brightness — if your device screen stays dark despite being on full brightness, it could be limited by iOS due to heat. • Manufacturing defects — if not all processors are active when the device is cool and not in low power mode. Your device's thermal state is monitored regularly in the background and recorded in the app (if Background App Refresh is enabled). Open the app or tap the widget to record a data point manually. Export the raw data to file for corroboration with Screen Time, Xcode's Instruments, or other development tools. Also an independent Apple Watch app shows the thermal status, active processors and uptime, and thermal history of your watch.
Network Check
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Ensure seamless connectivity and maximize your online experience with Network Check. The easiest and simplest network checking app. Whether you're at home, in the office, or on the go, this powerful app allows you to se what your network performance is like. Key Features: Real-time Network Monitoring: Stay informed about your network's health with live, real-time monitoring. Network Check provides instant data on your connection status, speed, and overall performance. Speed Test: Evaluate your internet speed with our straightforward speed test feature. Network Analysis: Dive into your network. Detect and troubleshoot connectivity issues and even figure out who your Internet Service Provider (ISP) is. User-Friendly Interface: Network Check is designed with simplicity in mind. Its intuitive interface makes it easy for users of all levels to navigate through features and obtain valuable information about their network. Say goodbye to connectivity headaches and take control of your network with Network Check.
Screenshots
Verdict
The clearest difference is update cadence: Network Check at every 2 weeks against Thermals's every 3 months. Thermals's advantage is chart position (#166 vs unranked). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Thermals ships an update every 3 months, Network Check every 2 weeks. The most recent releases landed on October 1, 2026 and September 24, 2026 respectively.
| Parameter | Thermals | Network Check |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (28 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 28 — better | — |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #166 — better | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 18.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | George Garside | Alexander Kozlowski |
In-app purchases
Thermals
No in-app purchases
Network Check
No in-app purchases









