# Ampere vs Link App

The clearest difference is review sentiment: Link App at 67% against Ampere's 21%. Link App also leads on rating (4.6 vs 3.6) and in-app purchases (none vs 1). On price, ratings volume, update cadence and device support there is nothing between them.

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

Link App holds the better App Store score, 4.6 against 3.6. Both are backed by a comparable volume of ratings — 12 and 5 respectively. Written reviews point the same way: 21% of Ampere's written reviews are positive against 67% of Link App's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 29, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Ampere | Link App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (12 ratings)](https://appshunter.io/ios/app/ampere-battery-charge-test/id1317191964/reviews) | **[4.6 (5 ratings)](https://appshunter.io/ios/app/link-app/id6444118938/reviews)** |
| Number of ratings | **12** | 5 |
| Positive reviews | 20.9% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 25 MB | 30 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CrioSoft LLC](https://appshunter.io/developer/1245475415) | [Samuel Corra](https://appshunter.io/developer/1652460468) |

## 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


### Link App

[App page](https://appshunter.io/ios/app/link-app/id6444118938)

This app assists coffee roasters by recommending ideal roast profiles based on detailed coffee input. It offers advanced features for various coffee types and roasting conditions, ensuring optimal results.

**Highlights:** Algorithmic roast profile selection, Altitude calibration, Arabica advanced input, All species mode for non-Arabica, Advanced roast details, Heirloom cupping for landrace varieties

**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 Link App free?

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

### Which has better reviews, Ampere or Link App?

Link App is rated higher. Ampere averages 3.6 out of 5 from 12 ratings, while Link App averages 4.6 from 5 ratings.

### Do Ampere or Link App have ads?

Ampere shows ads; Link App does not.

### Which is updated more often, Ampere or Link App?

Ampere ships an update every 3 months, and Link App every 3 months. Most recently, Ampere was updated on October 29, 2026 and Link App on October 22, 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.*