Comparison

Cello Sight Reading vs Cello Key

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

Head to head
About

Cello Sight Reading

Features
Read full description

Learn to read and play notes easily on your instrument. Learn to hear the notes when you see them on the staff and be able to play them by hearing their sound in your head. This builds upon our revolutionary method of learning instruments by ear, allowing you to become musically literate in the way that is much more effective as is done through imagining sounds that you are going to play when you see a note - not mere mechanical playing. And all that without too much thinking - you just will learn to sight-read and play with our app.

About

Cello Key

This app provides a simple fingerboard chart for cello learners, helping them identify notes, positions, and fingerings. It's designed for easy reference anywhere, especially useful for sheet music without finger numbers. It's particularly recommended for adult beginners.

Highlights
  • Fingerboard chart for cello
  • Note identification
  • Position guidance
  • Finger number reference
  • Simple and easy to read layout
  • Portable reference tool
Features
Read full description

Cello Key is a simple fingerboard chart application for cello learners. Cello learners are often troubled by the question, "Which note should I press, in which position and with which finger?" The fingerboard chart to refer to at that time has now become an app. Because it is an app, you can carry it with you anywhere and check it anywhere. Furthermore, the simple layout makes it easy to read. You no longer have to worry about finger numbers when playing sheet music that does not have them written on it. It is especially recommended for people who started playing the cello as adults! Enjoy playing the cello with Cello Key!

Screenshots

Cello Sight Reading4 screens
Cello Key3 screens

Verdict

The call

The clearest difference is price: Cello Key at Free against Cello Sight Reading's $12.99. Cello Sight Reading's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence 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

Cello Key is free to download; Cello Sight Reading costs $12.99 up front. Cello Key sells 1 one-off in-app purchase. Cello Sight Reading asks for nothing beyond the download.

UpkeepUpdate frequency

Cello Sight Reading ships an update every 4 months, Cello Key every 6 months. The most recent releases landed on September 22, 2026 and September 15, 2026 respectively.

Scorecard4 real differences · 6 level
Cello Sight Reading versus Cello Key: the parameters behind the verdict, then further details
ParameterCello Sight ReadingCello Key
Price$12.99Free — better
Rating—3.5 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 4 months — betterEvery 6 months
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size82 MB61 MB
Age rating4+4+
DeveloperOleg SokolovYuriko Kimura

In-app purchases

None

Cello Sight Reading

No in-app purchases

1 purchases

Cello Key

One-time1
  • Natural Minor Scales Pack$1.99

Questions

Is Cello Sight Reading free?
Cello Sight Reading costs $12.99, with no in-app purchases.
Is Cello Key free?
Cello Key is free to download, with in-app purchases available.
Do Cello Sight Reading or Cello Key have ads?
Cello Key shows ads; Cello Sight Reading does not.
Which is updated more often, Cello Sight Reading or Cello Key?
Cello Sight Reading ships an update every 4 months, and Cello Key every 6 months. Most recently, Cello Sight Reading was updated on September 22, 2026 and Cello Key on September 15, 2026.

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