Comparison

Sound Meter Env vs WattCheck

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

Head to head
About

Sound Meter Env

Features
Read full description

Sound Meter Env helps you understand ambient noise at a glance—then go deeper with timed evidence sessions, automatic reports, and local playback. WHAT YOU CAN DO • Live sound level with an easy-to-read decibel readout • Evidence sessions: choose duration, sensitivity, and report style • Session timeline with progress and noise-event highlights • Reports with overview metrics, dB trend chart, and audio playback • Export-friendly workflow: save copies of recordings where your device allows and share via the system share sheet • History of past sessions for quick review PRIVACY-FIRST BY DESIGN Audio capture and analysis are handled on your device for measuring and generating session reports. We don’t describe uploading your recordings to our servers in this app—your usage stays local to your phone unless you explicitly share files yourself. SUBSCRIPTION Free users can complete a limited number of full evidence sessions. Subscribe for unlimited monitoring, full reports, and friction-free exports—see in-app pricing and terms before purchase. SUBSCRIPTION PRICING (United States; prices may vary by country or region): - Monthly subscription: US$4.99 per month (auto-renewing). - Yearly subscription: US$29.99 per year (auto-renewing). SUBSCRIPTION TERMS Payment will be charged to your Apple ID. Subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings > Apple ID > Subscriptions. NOT A CERTIFIED LEGAL INSTRUMENT Readings are intended for everyday awareness and documentation workflows; they are not a substitute for calibrated professional equipment where certification is required. Need help? Use the support link on this App Store page. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

WattCheck

This app helps you test and compare your charging cables and power adapters. It estimates charging performance over time, allowing you to rank your cables and identify the best and weakest charging gear. Clean up your cable drawer and stop guessing which cable is slowing you down.

Highlights
  • Charging performance test
  • 5, 10, and 20 minute results
  • Cable ranking
  • Best and weakest cable detection
  • Charger comparison
  • Test history
  • CSV export
Features
Read full description

WattCheck helps you understand which charging cables and power adapters actually perform well. Have a drawer full of USB-C and Lightning cables? Not sure which one charges fast, which one is slow, and which one may be worn out? WattCheck makes it easy to test and compare your charging setup using real-world battery charging behavior. Start a test, keep your device connected, and WattCheck estimates charging performance over 5, 10, and 20 minute windows. Save results for each cable and charger, build a personal cable ranking, and quickly spot weak or inconsistent charging gear. KEY FEATURES • Charging Performance Test Run simple charging tests and see estimated speed in % per hour and normalized watt estimates. • 5, 10 and 20 Minute Results Get quick early feedback after 5 minutes, better accuracy after 10 minutes, and stronger comparison data after 20 minutes. • Cable Ranking Save tests for different cables and automatically rank them by performance. • Best and Weakest Cable Detection WattCheck highlights your best-performing cable and helps identify cables that may be slow, weak, or degraded. • Charger Comparison Name your power adapters and compare how different chargers perform with different cables. • Test History Keep a complete history of your charging tests, including cable name, charger name, device profile, battery change, duration, estimated power, and notes. • Charts View charging progress and speed charts to better understand each test. • Device Profiles Choose your iPhone or iPad model so WattCheck can use the correct battery capacity for better estimates. • Smart Warnings WattCheck warns you when a test may be less reliable, such as when battery level is above 80%, where iOS may reduce charging speed. • CSV Export Export your test history for personal tracking, troubleshooting, or comparison. HOW IT WORKS WattCheck uses public iOS battery information to estimate charging performance based on battery level changes over time. It does not require special hardware and does not use private system APIs. For best results: • Test between 20% and 70% battery • Use the same device when comparing cables • Use the same charger when comparing cables • Keep the device temperature normal • Run longer tests for better accuracy IMPORTANT NOTE WattCheck does not directly read USB voltage, current, or USB Power Delivery data. iOS does not provide this information to regular App Store apps. WattCheck estimates real-world charging performance based on battery level changes, making it useful for comparing cables and chargers in everyday conditions. PREMIUM WattCheck Premium unlocks unlimited charging tests, full history, cable ranking, charts, charger comparison, and CSV export. Use WattCheck to clean up your cable drawer, find your best charger setup, and stop guessing which cable is slowing you down. Subscription Plans: - Payment will be charged to your App Store Account at confirmation of purchase. - Your subscription will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current subscription period. - Your account will be charged for renewal within 24 hours prior to the end of the current subscription period. Automatic renewals will cost the same price you were originally charged for the subscription. - Manage or cancel your subscription from your user settings in the App Store at any time after purchasing. - Any unused portion of a free trial will be forfeited if you purchase a subscription. Privacy Policy: https://sunteame.com/privacy-policy/ Terms of Use: https://sunteame.com/terms-of-service/ If you have questions or feature requests, use the support link in the app to contact us.

Screenshots

Sound Meter Env4 screens
WattCheck4 screens

Verdict

The call

Sound Meter Env and WattCheck are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Sound Meter Env sells 2 in-app purchases, starting at $4.99 per month and WattCheck sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Sound Meter Env versus WattCheck: the parameters behind the verdict, then further details
ParameterSound Meter EnvWattCheck
PriceFreeFree
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Every 5 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size2 MB16 MB
Age rating4+4+
Developer学友 刘SUN TEAME PTE. LTD.

In-app purchases

2 purchases

Sound Meter Env

Subscriptions2
  • Monthly Access$4.991 Month
  • Yearly Access$29.991 Year
3 purchases

WattCheck

Subscriptions3
  • WattCheck Premium Weekly$1.997 Days
  • WattCheck Premium Monthly$5.991 Month
  • WattCheck Premium Yearly$29.991 Year

Questions

Is Sound Meter Env free?
Sound Meter Env is free to download, with in-app purchases available.
Is WattCheck free?
WattCheck is free to download, with in-app purchases available.
Do Sound Meter Env or WattCheck have ads?
Neither Sound Meter Env nor WattCheck shows ads.

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