# Electromagnetic Forces vs WAIS

The clearest difference is price: WAIS at Free against Electromagnetic Forces's $0.99. WAIS also leads on update cadence (every 8 days vs every 32 months). Electromagnetic Forces's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 15.0). On ads and device support there is nothing between them.

WAIS is free to download; Electromagnetic Forces costs $0.99 up front. WAIS sells 1 in-app purchase, starting at $2.99 per month. Electromagnetic Forces asks for nothing beyond the download.

Electromagnetic Forces ships an update every 32 months, WAIS every 8 days. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Electromagnetic Forces | WAIS |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/electromagnetic-forces-emf/id1159691990/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 8 days** |
| Monetization | Paid | — |
| Size | 25 MB | 10 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) | [Burning Tribe](https://appshunter.io/developer/1888072646) |

## What reviewers say

### Electromagnetic Forces

[App page](https://appshunter.io/ios/app/electromagnetic-forces-emf/id1159691990)

This educational app uses interactive 3D animations and experiments to explain electromagnetism and cathode rays for K12 students. It covers Fleming's left-hand rule, cathode ray structure, and the Cathode Ray Oscilloscope, with practice exercises and quizzes to reinforce learning.

**Highlights:** Interactive 3D animations, Explains Fleming's left-hand rule, Demonstrates cathode ray structure, Illustrates Cathode Ray Oscilloscope, Practice exercises, Interactive quizzes

**Features:** macOS Compatibility

**In-app purchases:** none


### WAIS

[App page](https://appshunter.io/ios/app/wais-4/id6763717128)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WAIS4 プレミアム | $2.99 | per month |


## Frequently asked questions

### Is Electromagnetic Forces free?

Electromagnetic Forces costs $0.99, with no in-app purchases.

### Is WAIS free?

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

### Do Electromagnetic Forces or WAIS have ads?

Neither Electromagnetic Forces nor WAIS shows ads.

### Which is updated more often, Electromagnetic Forces or WAIS?

Electromagnetic Forces ships an update every 32 months, and WAIS every 8 days. Most recently, Electromagnetic Forces was updated on October 5, 2026 and WAIS 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.*