# Serial Control vs Ampere

The clearest difference is in-app purchases: Serial Control at none against Ampere's 1. Serial Control also leads on ads (none vs shown) and update cadence (every 5 weeks vs every 3 months). Ampere's advantage is review sentiment (21% vs 0%). On price and device support there is nothing between them.

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

Serial Control ships an update every 5 weeks, Ampere every 3 months. The most recent releases landed on October 20, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Serial Control | Ampere |
| --- | --- | --- |
| 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 | 0.0% of reviews | **20.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 25 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [StarTech.com](https://appshunter.io/developer/983360067) | [CrioSoft LLC](https://appshunter.io/developer/1245475415) |

## What reviewers say

### Serial Control

[App page](https://appshunter.io/ios/app/serial-control/id1126359830)

Create custom interfaces for serial devices from your smartphone or tablet. Design control pages with buttons and sliders, build command libraries, and automate actions based on device responses. Seamlessly integrate with StarTech.com serial products.

**Highlights:** Customizable control interfaces, Command library builder, Event-based action automation, Automatic device detection, Integrated account control, HEX and ASCII command editor

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Serial Control free?

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

### Is Ampere free?

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

### Do Serial Control or Ampere have ads?

Ampere shows ads; Serial Control does not.

### Which is updated more often, Serial Control or Ampere?

Serial Control ships an update every 5 weeks, and Ampere every 3 months. Most recently, Serial Control was updated on October 20, 2026 and Ampere on October 26, 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.*