Comparison

Bowing Challenge vs Simply Science

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read 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.

About

Simply Science

Features
Read 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

Bowing Challenge4 screens
Simply Science4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 6 level
Bowing Challenge versus Simply Science: the parameters behind the verdict, then further details
ParameterBowing ChallengeSimply Science
Price$2.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 38 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size2 MB102 MB
Age rating4+4+
DeveloperKosada IncorporatedWikikids limited

In-app purchases

None

Bowing Challenge

No in-app purchases

None

Simply Science

No in-app purchases

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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