Comparison

Amperes 4 vs QuickConvert

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

Head to head
About

Amperes 4

This app helps you understand your device's charging performance. It diagnoses charging issues, compares different charging methods, and monitors battery health with detailed data and alarms. Get insights into your power setup for optimal device longevity.

Highlights
  • Battery charging rates (mA and wattage)
  • Hardware comparison testing
  • Detailed charging graphs
  • Global charging speed benchmarking
  • Intelligent battery alarms
  • System vital monitoring
Features
Currently charting
Read full description

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.

About

QuickConvert

Instantly convert units for length, weight, and temperature with this fast, simple, and accurate tool. Designed for everyday use, it provides precise results in an intuitive interface.

Highlights
  • Instant conversions
  • Metric & Imperial support
  • Length, weight, temperature conversions
  • Swap units with one tap
  • Copy results instantly
  • Clean, modern interface
Features
Read full description

QuickConvert – Unit Converter Convert units instantly with QuickConverter, the fast, simple, and accurate unit converter designed for everyday use. Whether you're converting length, weight, or temperature, QuickConvert delivers precise results in an intuitive interface built for speed and simplicity. Perfect for students, engineers, travelers, fitness enthusiasts, professionals, cooks, and anyone who needs reliable conversions on the go. Fast & Accurate Unit Conversions QuickConverter makes converting between Metric and Imperial units effortless. Enter a value, choose your units, and receive accurate results instantly. Current conversion categories • Length • Weight • Temperature More conversion categories are planned in future updates. Length Converter Convert between popular distance and length units including: • Millimeters (mm) • Centimeters (cm) • Meters (m) • Kilometers (km) • Inches (in) • Feet (ft) • Yards (yd) • Miles (mi) Whether you're measuring a room, converting road distances, or working on a project, QuickConverter makes every calculation simple. Weight Converter Quickly convert between: • Milligrams (mg) • Grams (g) • Kilograms (kg) • Ounces (oz) • Pounds (lb) • Stones (st) • Metric Tons (t) Ideal for fitness tracking, nutrition, cooking, shipping, and everyday calculations. Temperature Converter Instantly convert between: • Celsius (°C) • Fahrenheit (°F) • Kelvin (K) Perfect for travel, weather, science, education, and engineering. Designed for Simplicity QuickConverter was built with a focus on speed, clarity, and ease of use. Features include: • Instant conversions • Metric & Imperial support • Swap units with one tap • Copy results instantly • Clean, modern interface • Fast and lightweight • No account required • Privacy-friendly design Everything is designed to help you complete conversions in just a few taps. Built for Everyday Life Whether you're solving homework, cooking a recipe, planning a trip, exercising, working on a DIY project, or simply satisfying your curiosity, QuickConverter provides the accurate unit conversions you need in seconds. Download QuickConverter today and enjoy one of the fastest and easiest ways to convert units on your iPhone.

Screenshots

Amperes 44 screens
QuickConvert3 screens

Verdict

The call

The clearest difference is review sentiment: QuickConvert at 100% against Amperes 4's 47%. QuickConvert also leads on price (Free vs $2.99) and rating (5.0 vs 4.4). Amperes 4's advantage is ratings volume (655 vs 2) and chart position (#182 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

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

QuickConvert is free to download; Amperes 4 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

QuickConvert holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Amperes 4 has 655 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 47% of Amperes 4's written reviews are positive against 100% of QuickConvert's.

Scorecard6 real differences · 5 level
Amperes 4 versus QuickConvert: the parameters behind the verdict, then further details
ParameterAmperes 4QuickConvert
Price$2.99Free — better
Rating4.4 (655 ratings)5.0 (2 ratings) — better
Positive reviews46.5% of reviews100.0% of reviews — better
Number of ratings655 — better2
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#182 — better—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.0 — better26.0
Further details — not scored
Size36 MB4 MB
Age rating4+4+
DeveloperCrioSoft LLCEnzo Hareng

Customer experience

Amperes 4

All ratings644 ratings
Positive86.3%
Neutral3.4%
Negative10.2%
Written reviews230 reviews
Positive46.5%
Neutral8.3%
Negative45.2%

QuickConvert

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Amperes 4

Reported bugs

4 issues
  • Charging test results in total nonsense
  • Doesn't work on iPad in landscape mode
  • Login screen freezes
  • Incompatible with older devices

Requested features

4 requests
  • Dark mode option
  • Advanced analytics dashboard
  • Ability to save charger/wire names
  • Ability to monitor charging in the background

QuickConvert

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Amperes 4

No in-app purchases

None

QuickConvert

No in-app purchases

Questions

Is Amperes 4 free?
Amperes 4 costs $2.99, with no in-app purchases.
Is QuickConvert free?
QuickConvert is free to download, with no in-app purchases.
Which has better reviews, Amperes 4 or QuickConvert?
QuickConvert is rated higher. Amperes 4 averages 4.4 out of 5 from 655 ratings, while QuickConvert averages 5.0 from 2 ratings.
Do Amperes 4 or QuickConvert have ads?
Neither Amperes 4 nor QuickConvert shows ads.

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