# Boiler Egg vs Ei

The clearest difference is update cadence: Boiler Egg at every 4 months against Ei's every 11 months. Boiler Egg also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Boiler Egg ships an update every 4 months, Ei every 11 months. The most recent releases landed on September 29, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Boiler Egg | Ei |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 11 months |
| Size | 3 MB | 6 MB |
| Requires iOS | **13.0** | 26.1 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ritterfeld.com](https://appshunter.io/developer/482567621) | [Jakob Bisinger](https://appshunter.io/developer/1554878504) |

## What reviewers say

### Boiler Egg

[App page](https://appshunter.io/ios/app/boiler-egg/id1506635695)

**In-app purchases:** none


### Ei

[App page](https://appshunter.io/ios/app/ei-rechner/id6444662492)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Boiler Egg free?

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

### Is Ei free?

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

### Do Boiler Egg or Ei have ads?

Neither Boiler Egg nor Ei shows ads.

### Which is updated more often, Boiler Egg or Ei?

Boiler Egg ships an update every 4 months, and Ei every 11 months. Most recently, Boiler Egg was updated on September 29, 2026 and Ei on October 3, 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.*