Comparison

Ampere vs RangeFinder

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

Head to head
About

Ampere

Measure your device's charging speed with different chargers, cables, and wireless sources. Track app battery usage, estimate remaining time for activities, and compare charging accessories to find the best ones.

Highlights
  • Measure charging speed
  • Compare chargers and cables
  • Estimate remaining usage time
  • Track app battery usage
  • Create custom reference tables
Features
Read full description

Introducing Ampere Battery Check - your ultimate companion for everything battery, charging, and power on your device. Ampere gives you a fast, accurate way to measure real charging speed, compare chargers and cables, and understand exactly how your battery is performing right now. Whether you want to find the fastest charger in your home, test a new USB-C cable, or check if a wireless pad is really delivering the watts it promises, Ampere puts the numbers in your hand in seconds. KEY FEATURES - Accurate charging speed test: measure real-time charging current (mA) from any charger, cable, or wireless pad. - Charger comparison: benchmark wall adapters, car chargers, power banks, and wireless chargers side by side. - Cable & wire testing: instantly spot slow, damaged, or low-quality USB, Lightning, and USB-C cables. - Wireless charging check: verify that your Qi or MagSafe pad delivers the speed it advertises. - Battery health insights: track capacity, voltage, temperature, and overall condition over time. - Remaining usage time: see how long your battery will last for browsing, calls, video, music, gaming, and standby. - Charging history & logs: review past charging sessions to find the best charger for daily use. - Smart notifications: get alerts when charging is complete or when a slow charger is detected. - Clean, simple interface: clear readouts, no clutter, no confusing jargon. WHY AMPERE - Save time by always picking the fastest working charger. - Save money by identifying bad cables before you replace your device. - Protect your battery by avoiding weak or unstable power sources. - Travel smart by testing hotel, airport, and car chargers on the go. PERFECT FOR - Anyone frustrated by slow charging. - Users comparing new chargers, power banks, or MagSafe accessories. - Tech enthusiasts who want real data about their device's power. - Travelers, students, gamers, and heavy phone users. HOW IT WORKS 1. Open Ampere Battery Check. 2. Plug in your charger or place your device on a wireless pad. 3. Watch live charging speed, voltage, and battery status update in real time. 4. Compare results and choose the best charger and cable for you. Stop guessing which charger or cable is actually fast. Download Ampere Battery Check today and take full control of your battery, charging speed, and device power - all from one beautifully simple app.

About

RangeFinder

Features
Read full description

深圳市菲尼瑞斯科技有限公司有一款专门为智能测距仪开发的APP。主要用于实时数据同步/备注,拍照或导入照片并进行绘图。 测量和标注,快速绘制平面图,灵活选择现有长宽高数据进行面积和体积计算,简单加减法计算长度、面积和体积多维空间尺度,都在控制之中。

Screenshots

Ampere4 screens
RangeFinder3 screens

Verdict

The call

The clearest difference is in-app purchases: RangeFinder at none against Ampere's 1. RangeFinder also leads on ads (none vs shown) and update cadence (every 3 days vs every 3 months). On price 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

Both are free to download. Ampere sells 1 one-off in-app purchase. RangeFinder asks for nothing beyond the download.

UpkeepUpdate frequency

Ampere ships an update every 3 months, RangeFinder every 3 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Ampere versus RangeFinder: the parameters behind the verdict, then further details
ParameterAmpereRangeFinder
PriceFreeFree
Rating3.8 (14 ratings) — better—
Positive reviews20.9% of reviews—
Number of ratings14 — better—
Update frequencyEvery 3 monthsEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS17.611.0 — better
Further details — not scored
Size25 MB34 MB
Age rating4+4+
DeveloperCrioSoft LLCShenzhen FNIRSI Technology Co., Ltd.

Bugs and requests

Ampere

Reported bugs

3 issues
  • Crashes on launch
  • Fails to complete testing
  • Incorrect wattage readings

Requested features

3 requests
  • Historical data logging
  • Real-time monitoring
  • Wireless charging support

RangeFinder

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Ampere

One-time1
  • Disable Ads$0.99
None

RangeFinder

No in-app purchases

Questions

Is Ampere free?
Ampere is free to download, with in-app purchases available.
Is RangeFinder free?
RangeFinder is free to download, with no in-app purchases.
Do Ampere or RangeFinder have ads?
Ampere shows ads; RangeFinder does not.
Which is updated more often, Ampere or RangeFinder?
Ampere ships an update every 3 months, and RangeFinder every 3 days. Most recently, Ampere was updated on November 2, 2026 and RangeFinder on November 3, 2026.

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