# WattCheck: Charger Power Meter — USB-C & Lightning Watt Monitor > Estimates real-time charging wattage by analyzing battery percentage increase. (iPhone/iPad app by Ibrahim Tosun.) - Source: https://appshunter.io/ios/app/wattcheck-charger-power-meter/id6766281256 (this page in markdown: same URL + `.md`) - Developer: [Ibrahim Tosun](https://appshunter.io/developer/1457566707) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 2.80/5 from 4 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 17.6 · 5 MB - Languages: American English, French (France), German (Germany), Japanese, Korean, European Portuguese, European Spanish, Turkish - Released: 2026-06-03 - Data updated: 2026-09-09 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/wattcheck-charger-power-meter/id6766281256/reviews.md ## What is WattCheck? Is your charger actually fast charging your iPhone? WattCheck: Charger Power Meter estimates real-time wattage delivered to your device by analyzing how quickly your battery percentage rises — no extra dongle, no hardware tester required. HOW IT WORKS Since iOS doesn't expose raw watt readings, WattCheck uses your device model's battery capacity and typical voltage to calculate estimated power output. The more stable your environment, the more accurate the reading. LIVE CHARGING SCREEN • Speedometer gauge showing estimated watts in real time • Fun performance tiers: Bicycle → Sedan → Sports Car → Jet • Live battery %, charging status, and elapsed time • Measurement guide: best results at 20–60% battery CHARGE HISTORY Every +1% battery increment is logged during a session. Review average watts per session, compare cables and adapters, and spot patterns over time with easy-to-read charts. MULTI-LANGUAGE SUPPORT Full localization in English, Turkish, German, Japanese, Spanish, French, Korean, and Portuguese — so you can charge smarter in your language. PRIVACY FIRST All battery data stays on your device. Nothing is sent to external servers. No account needed. TIPS & FAQ Learn why the app needs to stay in the foreground, how to get the most accurate readings, and what affects watt fluctuations (cable quality, temperature, iOS charging management). FREE & PREMIUM Use WattCheck free with standard features. Remove ads with a one-time No Ads purchase — no subscription required. IMPORTANT: WattCheck provides estimated wattage based on battery percentage change over time. It is not a hardware wattmeter. Readings may vary due to charger quality, cable resistance, ambient temperature, and iOS power management. For best accuracy, keep the app in the foreground and wait for at least +1% battery increase. Download WattCheck and finally know if your charger is pulling its weight. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Real-time wattage estimation - Live charging screen with speedometer - Charge history tracking and charts - Multi-language support - Privacy-focused, no account needed - Tips and FAQ for accuracy ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | No Ads - Lifetime | $4.99 | one-time | ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/wattcheck-charger-power-meter/id6766281256/reviews.md ### 1/5 — Scam *2026-07-26* It doesn’t measure anything! ### 5/5 — Best 1.99 app EVER *2026-07-18* Best 1.99 app EVER, this is the first app in months that actually does what it says for the right price, plain and perfect! ## Frequently asked questions about WattCheck ### Does WattCheck have ads? Yes, WattCheck contains advertisements. Users can remove these ads with a one-time purchase. ### How accurate are WattCheck's readings? WattCheck provides estimated wattage based on battery percentage change. Accuracy can be affected by charger quality, cable resistance, ambient temperature, and iOS power management. For best results, keep the app in the foreground and wait for at least a 1% battery increase. ### What devices does WattCheck support? WattCheck is currently supported on iPhone devices. ### What is the age rating for WattCheck? WattCheck has an age rating of 4+. ### How often is WattCheck updated? The latest version, 1.5.6, was released on June 5, 2026, indicating recent updates. ### Can I use WattCheck offline? While the app analyzes charging data, it does not explicitly state offline functionality. However, it emphasizes that battery data stays on the device, suggesting it may function without a constant internet connection for core features. ### What are the benefits of the premium version of WattCheck? The premium option for WattCheck is a one-time purchase to remove advertisements. There are no subscription tiers mentioned. ### What does the speedometer gauge in WattCheck represent? The speedometer gauge in WattCheck shows the estimated watts being delivered to your device in real time, with performance tiers ranging from Bicycle to Jet. ## Version history (last 2 releases) ### 1.5.6 — 2026-06-05 The latest version offers bug fixes and performance improvements. ### 1.5.5 — 2026-06-03 No release notes. ## Apps similar to WattCheck | App | Rating | Price | Category | | --- | --- | --- | --- | | [ChargeGlow: Charger Quality](https://appshunter.io/ios/app/chargeglow-charger-quality/id6777425180) | — | Free | Utilities | | [Charge Countdown – Battery](https://appshunter.io/ios/app/charge-countdown-battery/id6740901010) | 2.7 (6) | Free | Utilities | | [ampere charging measurement](https://appshunter.io/ios/app/ampere-charging-measurement/id6761297072) | 3.7 (3) | Free | Utilities | | [GenPad: Phone Number Generator](https://appshunter.io/ios/app/genpad-phone-number-generator/id6771131626) | 4.3 (6) | Free | Utilities | | [Watt Charging Speed: Meter](https://appshunter.io/ios/app/watt-charging-speed-meter/id6760211479) | 4.2 (10) | $1.99 | Utilities | | [Photos: Fast Photo Organizer](https://appshunter.io/ios/app/photos-fast-photo-organizer/id6761430805) | 4.4 (12) | Free | Utilities | ## More apps by Ibrahim Tosun - [Toy Phone Play](https://appshunter.io/ios/app/toy-phone-play/id897113409) - [Baby Relax Sleep Pro](https://appshunter.io/ios/app/baby-relax-sleep-pro/id977572881) - [Beat Light](https://appshunter.io/ios/app/beat-light/id1176918096) - [Trabzon Belediyesi Otobüs Saatleri](https://appshunter.io/ios/app/trabzon-belediyesi-otobus-saatleri/id1198305747) - [Fingball Football 2019](https://appshunter.io/ios/app/fingball-football-2019/id1458104078) - [ABC Alphabet Card Quiz Game](https://appshunter.io/ios/app/abc-alphabet-card-quiz-game/id1463052746) All apps by Ibrahim Tosun: https://appshunter.io/developer/1457566707 ## Related topics [usb charge](https://appshunter.io/ios/topics/usb-charge) · [watt charging speed](https://appshunter.io/ios/topics/watt-charging-speed) · [charging speed test](https://appshunter.io/ios/topics/charging-speed-test) · [prouser check & charge 2.0](https://appshunter.io/ios/topics/prouser-check-charge-2-0) · [exfo power checker](https://appshunter.io/ios/topics/exfo-power-checker) · [charging wattage](https://appshunter.io/ios/topics/charging-wattage) · [liverage power meter](https://appshunter.io/ios/topics/liverage-power-meter) · [charger tester](https://appshunter.io/ios/topics/charger-tester) · [wattage](https://appshunter.io/ios/topics/wattage) · [fast charger](https://appshunter.io/ios/topics/fast-charger) · [power meter](https://appshunter.io/ios/topics/power-meter) · [phone charging speed](https://appshunter.io/ios/topics/phone-charging-speed) · [battery charging speed](https://appshunter.io/ios/topics/battery-charging-speed) · [bateria check](https://appshunter.io/ios/topics/bateria-check) · [fast charging](https://appshunter.io/ios/topics/fast-charging) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*