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Watt Charging Speed: Messgerät

by Sindre Sørensen

  • Utilities
  • Paid
View on the App Store
Rating
1.0
1 ratings · Türkiye storefront
Top 91%among 22 Utilities apps
Last update
Sep 15, 2026
Version 1.4
Size
2 MB
Category
Utilities
Tracked since
Oct 10, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

How fast is your charger, really? Plug in your iPhone or iPad and Watt Charging Speed shows you a live estimate of your charging power in watts — so you can tell a fast charger from a slow one, and find out whether your cable actually supports fast charging.

HOW IT WORKS — HONESTLY
iPhone and iPad don't give apps access to a hardware power meter. Instead, Watt Charging Speed estimates wattage by tracking how quickly your battery level rises, combined with your device's exact battery capacity. That means:

  • Readings are careful estimates, not direct measurements
  • Your first reading appears after a few minutes of charging
  • The longer the app stays open while charging, the more accurate it gets

LIVE CHARGING SPEED

  • Live wattage estimate while charging
  • Color-coded speed indicator: Fast, Normal, Slow, or Trickle
  • Animated charging ring and live session graph
  • Estimated time until fully charged

BENCHMARK YOUR CHARGERS

  • Create battery range tests (e.g. 30% → 80%) and time them precisely
  • Compare chargers and cables under identical conditions
  • See which charger actually performs best

CHARGING HISTORY

  • Automatic session tracking with average watts, duration, and battery range
  • Compare sessions over time to spot slow cables or aging chargers

PRIVATE BY DESIGN

  • No ads, no tracking, no accounts
  • All data stays on your device
  • Works completely offline

GOOD TO KNOW
iOS pauses background apps, so keep Watt Charging Speed open while it measures — it keeps your screen awake during a session so nothing is interrupted.

Perfect for testing a new charger, diagnosing slow charging, or finally settling which of your cables belongs in the drawer.

What’s new

Release notes for the latest version, as written by the developer.

v1.4

Accuracy fixes for sessions and benchmarks:

  • Sessions that charge all the way to 100% are now saved with the correct end level and duration
  • A benchmark no longer saves a misleading result if the app was in the background when the target level was reached — it now tells you to run the test again
  • A finished benchmark no longer keeps the screen awake or blocks other tests
  • The live wattage follows the current rate when charging slows down, and very low power is correctly shown as trickle charging
  • Fixed text being cut off with "…" when a large accessibility text size is enabled

Rank history

Daily position in the Iraq charts. #1 is at the top.

Best rank
#3
Current rank
#4
Days charting
7 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

78/100

Not flagged as small & simple

  • Developer size10% · 25

    Developer: 4 apps on the charts

  • Audience size100% · 20

    Ratings: 1

  • App size100% · 10

    Size: 2 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof100% · 30

    Best rank #2, 31 countries

An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2

How the score works

Version history

  • 1.4LatestReleased Sep 15, 2026