# Ampere vs logm8

The clearest difference is in-app purchases: logm8 at none against Ampere's 1. logm8 also leads on ads (none vs shown) and update cadence (monthly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Ampere sells 1 one-off in-app purchase. logm8 asks for nothing beyond the download.

Ampere ships an update every 3 months, logm8 monthly. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Ampere | logm8 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (12 ratings)](https://appshunter.io/ios/app/ampere-battery-charge-test/id1317191964/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 20.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 29 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CrioSoft LLC](https://appshunter.io/developer/1245475415) | [Kazuki Burrows](https://appshunter.io/developer/1802134061) |

## What reviewers say

### Ampere

[App page](https://appshunter.io/ios/app/ampere-battery-charge-test/id1317191964)

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:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Disable Ads | $0.99 | one-time |

**What reviewers like**

- 🚀 Accurate measurements
- 👍 Simple and easy to use
- 🔋 Useful for testing chargers and cables

**What reviewers complain about**

- 🐛 Inconsistent results
- ⏱️ Slow testing process
- 💤 Doesn't work on latest iOS versions
- 📺 Intrusive ads
- 🤔 Questionable accuracy

**Reported bugs**

- Crashes on launch
- Fails to complete testing
- Incorrect wattage readings

**Requested features**

- Historical data logging
- Real-time monitoring
- Wireless charging support


### logm8

[App page](https://appshunter.io/ios/app/logm8/id6747282829)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ampere free?

Ampere is free to download, with in-app purchases available.

### Is logm8 free?

logm8 is free to download, with no in-app purchases.

### Do Ampere or logm8 have ads?

Ampere shows ads; logm8 does not.

### Which is updated more often, Ampere or logm8?

Ampere ships an update every 3 months, and logm8 monthly. Most recently, Ampere was updated on October 24, 2026 and logm8 on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*