Bowing Challenge vs Simply Science
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bowing Challenge
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.
- 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
Read full descriptionHide full description
Bowing Challenge generates random string crossing exercises for violin, viola, cello and double bass to develop sight-reading skills and agility. The teacher or performer has a variety of choices, such as exercise length and difficulty. Exercises may be viewed on-screen, or printed to any AirPrint-compatible printer. This app is suitable for all performers, from beginning to the most advanced. The exercises for all instruments can be generated for 2, 3, or 4 strings. The exercises for the cello and double bass can optionally be written to be performed one octave higher than the open strings (using harmonics) to facilitate bow agility and speed: • Cello (open strings): C2, G2, D3, and A3 [Bass clef] • Cello (harmonics): C3, G3, D4, and A4 [Treble clef] • Double Bass (open strings): E2, A2, D3, and G3 [Bass clef] (double bass sounds one octave lower than written, at E1, A1, D2 and G2) • Double Bass (harmonics): E3, A3, D4, and G4 [Treble clef] (double bass sounds one octave lower than written, at E2, A2, D3, and G3) • Custom: any 2, 3, or 4 notes; any clef Developed for P. G. Robinson by Kosada.
Simply Science
Read full descriptionHide full description
Simply Science helps you achieve your dreams by learning with understanding about yourself and the world around you. It is sheer joy to learn by relating to real life experiences. Simply Science also helps you to be strong in basics and gain insights through self assessment, analytics and concept level mastery.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Bowing Challenge | Simply Science |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 38 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 102 MB |
| Age rating | 4+ | 4+ |
| Developer | Kosada Incorporated | Wikikids limited |
In-app purchases
Bowing Challenge
No in-app purchases
Simply Science
No in-app purchases
Questions
Is Bowing Challenge free?
Is Simply Science free?
Do Bowing Challenge or Simply Science have ads?
Which is updated more often, Bowing Challenge or Simply Science?
Other comparisons















