# Bowing Challenge vs Simply Science

The clearest difference is price: Simply Science at Free against Bowing Challenge's $2.99. Simply Science also leads on update cadence (every 5 weeks vs every 38 months) and iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Simply Science is free to download; Bowing Challenge costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Bowing Challenge ships an update every 38 months, Simply Science every 5 weeks. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Bowing Challenge | Simply Science |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bowing-challenge/id1241119321/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 5 weeks** |
| Monetization | Paid | — |
| Size | 2 MB | 102 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kosada Incorporated](https://appshunter.io/developer/417152887) | [Wikikids limited](https://appshunter.io/developer/731411951) |

## What reviewers say

### Bowing Challenge

[App page](https://appshunter.io/ios/app/bowing-challenge/id1241119321)

This app generates random string crossing exercises for violin, viola, cello, and double bass to improve sight-reading and agility. Users can customize exercise length, difficulty, and the number of strings used. Exercises can be viewed on-screen or printed.

**Highlights:** Random string crossing exercises, Supports violin, viola, cello, double bass, Customizable exercise length and difficulty, 2, 3, or 4 string exercises, Printable exercises via AirPrint, Harmonic exercises for cello and double bass

**Features:** macOS Compatibility

**In-app purchases:** none


### Simply Science

[App page](https://appshunter.io/ios/app/simply-science/id1416452578)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bowing Challenge free?

Bowing Challenge costs $2.99, with no in-app purchases.

### Is Simply Science free?

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

### Do Bowing Challenge or Simply Science have ads?

Neither Bowing Challenge nor Simply Science shows ads.

### Which is updated more often, Bowing Challenge or Simply Science?

Bowing Challenge ships an update every 38 months, and Simply Science every 5 weeks. Most recently, Bowing Challenge was updated on October 15, 2026 and Simply Science on October 25, 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.*