# Fairytale Forest vs Biorhythm Calc

The clearest difference is update cadence: Biorhythm Calc at every 2 weeks against Fairytale Forest's every 41 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Fairytale Forest ships an update every 41 months, Biorhythm Calc every 2 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Fairytale Forest | Biorhythm Calc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 326 MB | 24 MB |
| Requires iOS | 12.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Perform](https://appshunter.io/developer/666961872) | [Kornel Kaulics](https://appshunter.io/developer/1501407664) |

## What reviewers say

### Fairytale Forest

[App page](https://appshunter.io/ios/app/fairytale-forest/id666961869)

This app offers a magical experience for young children aged 4-7, featuring creative games like Story FX and memory challenges. It also includes engaging videos with songs and dances, encouraging active participation.

**Highlights:** Story FX for creative expression, Magic Patterns memory game, Purple Path coordination challenge, Funky Fairy jewel collection game, Fairytale Forest songs and dances videos

**Features:** macOS Compatibility

**In-app purchases:** none


### Biorhythm Calc

[App page](https://appshunter.io/ios/app/biorhythm-calc/id6748093533)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fairytale Forest free?

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

### Is Biorhythm Calc free?

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

### Do Fairytale Forest or Biorhythm Calc have ads?

Neither Fairytale Forest nor Biorhythm Calc shows ads.

### Which is updated more often, Fairytale Forest or Biorhythm Calc?

Fairytale Forest ships an update every 41 months, and Biorhythm Calc every 2 weeks. Most recently, Fairytale Forest was updated on November 1, 2026 and Biorhythm Calc on October 30, 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.*