Amperes 4: Battery Charge Info
by CrioSoft LLC
- Utilities
- Paid
- Rating
- 4.4
- 650 ratings · US storefront
- Top 83%among 78 Utilities apps
- Last update
- Jul 2, 2026
- Version 4.5.3
- Size
- 37 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 methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
Take Control of Your Power with Amperes 4
Stop guessing why your phone is charging slowly. Amperes 4 is the ultimate diagnostic tool designed to help you test your charging setup, identify faulty hardware, and monitor your device's health with professional-grade precision.
Key Features
Battery Charging Rates: Get the mA and wattage data to see exactly how much juice is flowing into your battery.
Hardware Comparisons: Side-by-side testing for wired vs. wireless chargers, power banks, and different cable types.
Deep Data & Graphs: Visualize your charging sessions with detailed, interactive graphs that track performance over time.
Global Benchmarking: Compare your charging speeds with other users online to see if your gear is performing at its peak.
Intelligent Battery Alarm: Get notified the moment your battery reaches your desired level to help prolong its lifespan.
System Vital Monitoring: Track thermal status, memory usage, and disk space alongside your battery metrics.
Professional Testing Tools
Customized Logging: Add notes about wire brands or charger models to your tests for future reference.
Color-Coded Results: Intuitive UI instantly shows you if a charger is "Good," "Average," or "Bad."
Exportable Data: Need the raw numbers? Export your test results for external analysis or record-keeping.
Why Amperes 4?
Whether you are testing a brand-new GaN charger, verifying a "fast-charging" cable, or troubleshooting a power bank, Amperes 4 gives you the transparency you need to keep your devices running efficiently.
Stop wasting time with bad cables. Get the data. Get Amperes 4.
What’s new
Release notes for the latest version, as written by the developer.
Alarm fixes, tests can run with the screen being locked now.
Rank history
Daily position in the Japan charts. #1 is at the top.
- Best rank
- #16
- Current rank
- #41
- Days charting
- 3 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
71/100
Not flagged as small & simple
- Developer size0% · 25
Developer: 9 apps on the charts
- Audience size80% · 20
Ratings: 650
- App size100% · 10
Size: 37 MB
- Price model100% · 15
Price model: paid
- Demand proof100% · 30
Best rank #3, 47 countries
An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2
How the score worksVersion history
- 4.5.3LatestReleased Jul 2, 2026