Comparison

Device Kit vs FoxPeek

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Device Kit

Monitor your device's hardware performance in real-time with detailed CPU, memory, and battery usage. Access a suite of practical tools including weather, network diagnostics, and sensors. Visualize historical data with customizable charts and home screen widgets.

Highlights
  • Real-time CPU, memory, and battery monitoring
  • Visual data charts for performance trends
  • Picture-in-Picture mode for continuous monitoring
  • Customizable home screen widgets
  • Pro Toolbox with system, environment, and network tools
  • Sensor data including compass and barometer
Features
Read full description

Device Kit — Your iPhone's All-in-One Health Checker, Take Full Control of Your Device in Real Time! Ever wonder how hot your phone really is? How fast is it charging? Is your CPU about to max out? Is your network being throttled? Device Kit gives you the most intuitive, real-time, and comprehensive answers. ▸▸ Core Monitoring at a Glance ◂◂ CPU Temperature — Real-time device temperature with smart estimates for battery and body temperature. 6-level thermal warning system alerts you before your phone overheats. CPU Usage — Real-time CPU utilization monitoring with user/system/idle breakdowns, plus historical trend charts to track load changes. Network Speed — Real-time speed for both Wi-Fi and cellular networks. Monitor upload/download speeds, peak speeds, and daily data usage stats. Battery Status — Charge level, charging state, low-power mode, thermal status — full battery health insights. Memory & Storage — Used/total capacity with breakdowns, storage usage percentage — say goodbye to storage anxiety. ▸▸ Dynamic Island & Floating Widgets — Desktop Monitoring ◂◂ Dynamic Island Live Monitor — No need to open the app. While your phone is locked or you're using other apps, the Dynamic Island shows real-time CPU temperature, network speed, and CPU usage with live updates. Picture-in-Picture Floating Widget — A persistent floating window on your home screen monitors network speed, temperature, and CPU. Drag it anywhere, use it while doing other tasks — true desktop-level monitoring experience. Motion Tracker on Dynamic Island — While recording motion trajectory, the Dynamic Island displays real-time distance, duration, and speed. ▸▸ Charging Power Detection ◂◂ Real-time Power Estimation — Detects charging power (W) in real time, telling you whether it's slow charging, standard charging, or fast charging. Charging Speed Rating — Slow / Standard / Fast / Ultra — clear at a glance. Charging Statistics — Duration, peak power, and total energy charged — a complete charging report. History Log — Every charging session is automatically saved for later review and comparison. ▸▸ 18 Practical Tools ◂◂ 【System Tools】 Flashlight (9 blink modes with brightness adjustment), Haptic Feedback, Multi-Touch Test, Motion Tracker 【Network Tools】 Ping, Telnet, SSH (Pro) 【Utility Tools】 QR Code Generator, Decibel Meter, Password Generator 【Sensor Tools】 Compass, GPS, Gyroscope, Magnetometer, Barometer, Altimeter, Proximity Sensor 【Display Tools】 Color & Brightness Adjustment 【Environment Tools】 Weather (Pro) ▸▸ Home Screen Widgets ◂◂ Home Screen Widgets — Uptime, Weather, CPU, Temperature, Memory, Storage, Clock, Device Info, Quick Actions. Available in Small, Medium, and Large sizes. Lock Screen Widgets — Weather, Storage, Uptime — check key info without unlocking. 【Auto-Renewable Subscription Terms】 Pro membership is an auto-renewing subscription billed monthly or yearly. Payment will be charged to your Apple ID account upon confirmation of purchase. The subscription will automatically renew within 24 hours prior to the end of the current period unless auto-renew is turned off at least 24 hours before the end of the current period. To cancel, please turn off auto-renewal in Settings > Apple ID > Subscriptions at least 24 hours before the current period ends. You can manage or cancel your subscription anytime after purchase in your account settings. Any unused portion of a free trial period (if offered) will be forfeited when you purchase a subscription. 【Privacy Policy & Terms of Service】 Privacy Policy: https://device-kit.pages.dev/private Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Download Device Kit and keep your device under your complete control!

About

FoxPeek

Analyze your iOS device's hardware and battery health by importing diagnostic files. Test your display, storage, and memory with built-in tools. Generate clear reports for easy review and management of device information.

Highlights
  • Device configuration analysis
  • Component information review
  • Battery health analysis
  • Display, storage, and memory testing
  • Local report generation
  • Organized diagnostic data
Features
Read full description

FoxPeek is a device configuration analysis and testing utility designed for iOS users. Import a sysdiagnose or Analytics file to organize and review device information, generate clear configuration or battery analysis reports, and use Toolbox to test the display, storage, and memory of the device you are currently using. Whether you want to learn more about your device, review information about its display, battery, cameras, storage, and memory, or check its display and performance, FoxPeek turns complex diagnostic data into clear and accessible results. 1. Device Configuration Analysis Import a supported diagnostic file to view the device model, iOS version, storage capacity, memory information, storage information, and other configuration details. 2. Component Information Review key information about the display, battery, cameras, storage, memory, and other components, organized into easy-to-read categories. 3. Battery Health Analysis Import an Analytics file to review battery information such as cycle count, battery capacity, and battery health, helping you better understand the battery’s current condition. 4. Toolbox All tests and benchmarks in Toolbox are performed on the device you are currently using: - Display Test: Use different solid-color screens to help identify dead pixels, bright pixels, and display irregularities - Storage Benchmark: Measure the device’s sequential storage read and write speeds - Memory Benchmark: Measure the device’s memory read, write, and copy speeds 5. Local Reports Generate device configuration and battery analysis reports, and save them to your history for convenient viewing, comparison, and management. 6. Clear, Organized Results FoxPeek organizes complex diagnostic information into an easy-to-understand interface, reducing the time required to search through raw files. The interface is optimized for both iPhone and iPad, including landscape use. FoxPeek is useful if you want to: - Learn more about your iOS device’s configuration - Review information about the display, battery, cameras, storage, and memory - Check battery cycle count, capacity, and health - Test the display of the device you are currently using - Measure the device’s storage and memory performance - Organize device information into a clear report - Find key information in sysdiagnose or Analytics files more easily FoxPeek takes your privacy and data security seriously. Imported sysdiagnose and Analytics files, along with generated reports, are processed and stored locally on your device by default. Toolbox tests and benchmarks are also performed on the current device. Unless you choose to share content, send feedback, or use a feature that requires network access, FoxPeek does not upload the original diagnostic files or locally stored reports. Configuration analysis, device testing, and benchmark results provided by FoxPeek are for reference only. Results may vary depending on the iOS version, device model, file contents, data completeness, device temperature, and current operating conditions. FoxPeek is not an official Apple tool, and its results do not represent an official Apple diagnostic assessment.

Screenshots

Device Kit4 screens
FoxPeek4 screens

Verdict

The call

The clearest difference is in-app purchases: FoxPeek at none against Device Kit's 4. FoxPeek also leads on review sentiment (100% vs 77%). On price, rating, ratings volume and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Device Kit sells 4 in-app purchases, starting at $3.99 per month. FoxPeek asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Device Kit against 5.0 for FoxPeek. Both are backed by a comparable volume of ratings — 90 and 32 respectively. Written reviews are what separate them: 77% of Device Kit's written reviews are positive against 100% of FoxPeek's.

UpkeepUpdate frequency

Device Kit ships an update every 10 days, FoxPeek every 11 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
Device Kit versus FoxPeek: the parameters behind the verdict, then further details
ParameterDevice KitFoxPeek
PriceFreeFree
Rating4.9 (90 ratings)5.0 (32 ratings) — better
Positive reviews77.4% of reviews100.0% of reviews — better
Number of ratings90 — better32
Update frequencyEvery 10 days — betterEvery 11 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size36 MB17 MB
Age rating4+4+
DeveloperShuyang Fan Ziyang Software Development Studio (Individually Owned Business)Xiamen Infinity Starway Technology Co., Ltd.

Customer experience

Device Kit

All ratings88 ratings
Positive97.7%
Neutral0.0%
Negative2.3%
Written reviews53 reviews
Positive77.4%
Neutral3.8%
Negative18.9%

FoxPeek

All ratings32 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Device Kit

Subscriptions2
  • Monthly subscription$3.991 Month
  • Yearly subscription$7.991 Year
One-time2
  • Lifetime Membership$12.99
  • Lifetime Membership$14.99
None

FoxPeek

No in-app purchases

Questions

Is Device Kit free?
Device Kit is free to download, with in-app purchases available.
Is FoxPeek free?
FoxPeek is free to download, with no in-app purchases.
Which has better reviews, Device Kit or FoxPeek?
FoxPeek is rated higher. Device Kit averages 4.9 out of 5 from 90 ratings, while FoxPeek averages 5.0 from 32 ratings.
Do Device Kit or FoxPeek have ads?
Neither Device Kit nor FoxPeek shows ads.
Which is updated more often, Device Kit or FoxPeek?
Device Kit ships an update every 10 days, and FoxPeek every 11 days. Most recently, Device Kit was updated on October 28, 2026 and FoxPeek on October 29, 2026.

Other comparisons