# Ampere vs Electric Field Explorer

The clearest difference is price: Ampere at Free against Electric Field Explorer's $1.99. Ampere also leads on iOS requirement (16.4 vs 26.0). Electric Field Explorer's advantage is update cadence (every 2 months vs every 145 months). On ads, in-app purchases and device support there is nothing between them.

Ampere is free to download; Electric Field Explorer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ampere ships an update every 145 months, Electric Field Explorer every 2 months. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Ampere | Electric Field Explorer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 145 months | **Every 2 months** |
| Size | 51 MB | 4 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Scott Beilfuss](https://appshunter.io/developer/914596608) | [Holger Wiesing](https://appshunter.io/developer/828032203) |

## What reviewers say

### Ampere

[App page](https://appshunter.io/ios/app/ampere/id914596604)

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

**In-app purchases:** none


### Electric Field Explorer

[App page](https://appshunter.io/ios/app/electric-field-explorer/id6757281793)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ampere free?

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

### Is Electric Field Explorer free?

Electric Field Explorer costs $1.99, with no in-app purchases.

### Do Ampere or Electric Field Explorer have ads?

Neither Ampere nor Electric Field Explorer shows ads.

### Which is updated more often, Ampere or Electric Field Explorer?

Ampere ships an update every 145 months, and Electric Field Explorer every 2 months. Most recently, Ampere was updated on October 24, 2026 and Electric Field Explorer on October 6, 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.*