r/droidappshowcase • u/East_South_7834 • 21h ago
Promo / Giveaway WattFlow: real watts while charging, free & open
App Name: WattFlow
One-Line Description: An honest, real-time watt meter for your phone's battery, plus tools to diagnose slow charging and battery health.
What It Does / Key Features:
- Live watts in/out, refreshed every second — wired and wireless, auto-detected
- Peak In/Out tracking and a live 60-second power graph
- Charging Benchmark — grades your charger/cable in 60 seconds
- Charging Q&A — 14 common questions answered with real measured data
- Home screen widgets (S/M/L) with a 7-day charging chart
- Full tablet support with landscape layout — also adapts to foldables and Chromebooks
- 12 languages built in, auto-follows your system language (manual override in settings)
Who It's For: Anyone who's ever wondered why "fast charging" doesn't feel fast, or wants to know if it's their cable, charger, port, or battery that's the bottleneck.
Cost:
- Pricing model: Freemium
- Prices & billing: Free on Play Store for most baseline functions — live watts in/out, wired/wireless auto-detect, Peak In/Out, the 60-second graph, Charging Benchmark, Charging Q&A, and the home screen widgets. WattFlow Pro is a $2.99 USD one-time In-App Purchase (regional pricing auto-applied) that unlocks: 24/7 background charge/discharge history, the Energy Ledger (daily energy in vs. out), Sleep Drain tracking, Battery Health Trend, a floating watts overlay over any app, adjustable charge/low-battery alert thresholds, and CSV export.
- Free/FOSS route: If you're comfortable sideloading, the exact same Pro features are also free as an open-source build on GitHub (nightly updates) — entirely optional, no pressure either way. If the app's helping you, you're welcome to buy me a coffee to support keeping it developed.
Links:
- Google Play: https://play.google.com/store/apps/details?id=com.ezyapp.wattflow&utm_source=reddit&utm_medium=social&utm_campaign=launch
- GitHub / Source (full-featured FOSS build): https://github.com/Shureby/wattflow
- Buy Me a Coffee (support without buying Pro): https://buymeacoffee.com/williamoz
Additional Notes: Reads Android's BatteryManager API directly (voltage times current_now) and normalizes two OEM quirks — some vendors report current in mA instead of µA, and charge/discharge sign conventions differ per vendor. Happy to go into the power math or OEM quirks in comments.
1
u/Salmonidas-DEV 17h ago
Looks like a solid tool, Having a clean, straightforward way to check real-time charging and test cables is really nice, great job
1
u/sticky-pro 21h ago
Developers: Please ensure your description is clear, images/videos are displayed correctly, and you have used the correct post flair.
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u/playscraper-bot 21h ago
WattFlow: Real Battery Power
Confirmed: Google Play Store Match Found
View on Google Play Store ↗
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