Comparison

iClef vs Guidonian Hand

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

Head to head
About

iClef

Learn to identify and practice fundamental music notation skills across various clefs. This tool is designed to accelerate learning for students and sight-readers, helping to differentiate pitches on the stave.

Highlights
  • Learn treble and bass clefs
  • Practice less common clefs
  • Improve pitch differentiation
  • Accelerate notation skills
  • Optimize learning process
Features
Read full description

We created iClef for our students to accelerate and optimize the learning process. iClef helps you learn and practice fundamental notation skills. For sight-readers, iClef is a great tool. Whether you want to learn treble or bass clef or interested in less commonly known clefs like Soprano, and Mezzo Soprano, iClef will help you train your eyes for seamless differentiation of various pitches on the stave. iClef has six clefs: Treble: Treble clef can also be called violin clef, or G clef, because the curl of the clef encircles the line where the note G falls. This clef is used for high-sounding instruments, such as violin, guitar, mandolin, flute, oboe, English horn, clarinet, saxophone, horn, and trumpet. The upper staff of keyboard instruments also use treble clef. Bass: Bass clef may also be referred to as F clef, because the note F is found on the line in between the two dots of the clef’s symbol. This clef is used for low-sounding instruments, such as bass guitar, cello, double bass, bassoon, trombone, tuba, and timpani. The bottom staff of keyboard instruments also use bass clef. Alto: Alto clef is often called viola clef, or sometimes C clef, since the middle line of the staff is the note C. The viola and the alto trombone are generally the only instruments that use this clef. Tenor: Tenor clef is not seen very often; it is occasionally used to represent the upper ranges of the cello, double bass, bassoon, and trombone. Its symbol is identical to the alto clef, but is moved higher on the staff. Mezzo Soprano: When the C-clef is placed on the second line of the stave, it is called the mezzo-soprano clef. The mezzo-soprano clef is specifically popular in Azerbaijan music. It is widely used in music sheets written for Tar. However, it is very rarely used in modern contexts. It was traditionally used for mezzo-soprano voices in operatic roles, notably by composer Claudio Monteverdi. This clef was also used for certain flute parts during renaissance, especially when doubling vocal lines. Soprano: When the C-clef is placed on the first line of the stave, it is called the soprano clef. This clef was used for the right hand of keyboard music (particularly in France; see Bauyn manuscript) as well as in vocal music for sopranos, and sometimes in high viola da gamba parts alongside the alto clef.

About

Guidonian Hand

Features
Read full description

In Medieval music, the Guidonian hand was a mnemonic device used to assist singers in learning to sight-sing. With this app you can learn how it was used and have some fun making music. This app turns images of the Guidonian hand into a keyboard which you can play. Each joint and tip of a finger is a key which plays an instrument tone, a solmization syllable or a MIDI pitch. The keys can be visualised in different ways. You can also play on photos of real hands thanks to hand recognition. Guido of Arezzo or Guido d'Arezzo (c. 991–992 – after 1033) was an Italian music theorist and pedagogue of High medieval music. Guido developed new techniques for teaching, such as staff notation and the use of the "ut–re–mi–fa–sol–la" (do–re–mi–fa–so–la) mnemonic (solmization). The idea of the Guidonian hand is that each portion of the hand represents a specific note within the hexachord system, which spans nearly three octaves from "Γ ut" (that is, "Gamma ut") (the contraction of which is "Gamut", which can refer to the entire span) to "E la" (in other words, from the G at the bottom of the modern bass clef to the E at the top of the treble clef). In teaching, an instructor would indicate a series of notes by pointing to them on their hand, and the students would sing them. The notes of the gamut were mentally superimposed onto the joints and tips of the fingers of the left hand.

Screenshots

iClef4 screens
Guidonian Hand4 screens

Verdict

The call

The clearest difference is update cadence: iClef at every 2 months against Guidonian Hand's every 52 months. Guidonian Hand's advantage is price ($1.99 vs $2.99). On ads, in-app purchases, device support and iOS requirement 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

iClef costs $2.99 and Guidonian Hand $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

iClef ships an update every 2 months, Guidonian Hand every 52 months. The most recent releases landed on November 3, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
iClef versus Guidonian Hand: the parameters behind the verdict, then further details
ParameteriClefGuidonian Hand
Price$2.99$1.99 — better
Rating4.2 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 2 months — betterEvery 52 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.426.0 — better
Further details — not scored
Size5 MB34 MB
Age rating4+4+
DeveloperAnousha KafashianDr. Garbers Softwareentwicklung

In-app purchases

None

iClef

No in-app purchases

None

Guidonian Hand

No in-app purchases

Questions

Is iClef free?
iClef costs $2.99, with no in-app purchases.
Is Guidonian Hand free?
Guidonian Hand costs $1.99, with no in-app purchases.
Do iClef or Guidonian Hand have ads?
Neither iClef nor Guidonian Hand shows ads.
Which is updated more often, iClef or Guidonian Hand?
iClef ships an update every 2 months, and Guidonian Hand every 52 months. Most recently, iClef was updated on November 3, 2026 and Guidonian Hand on October 7, 2026.

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