Comparison

ChordUp vs Telemann 6 Duets

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

Head to head
About

ChordUp

This app is a musical instrument and MIDI controller that lets you play common chords instantly with a single touch. It offers multiple playing surfaces for chords, single notes, or strumming, and can control other music apps on the same or different devices.

Highlights
  • Instant chord selection with single touch
  • Play full chords, single notes, or strum
  • Control other music apps via MIDI
  • 108 available chords
  • 10 embedded instruments
  • Smart sustain and chord locking
Read full description

ChordUp is a musical instrument and MIDI controller that allows you to play almost any common chord instantly. No need to configure presets for each song. Just grab ChordUp and start playing. SELECT CHORDS WITH A SINGLE TOUCH Unique chord selector allows you to play any available chord instantly. You don't need to make any pre-configurations or presets. Just tap on the key button and slide your finger to the required chord type. With a little practice you will be able to select any chord in a fraction of a second. PLAY FULL CHORDS, SINGLE NOTES OR STRUM Three playing surfaces allows you to easily play any rhythm pattern: full chords, bass and chord, strumming or arpeggios. CONTROL OTHER APPS ON THE SAME DEVICE You can use ChordUp to control your favourite soft or hard synthesizer through Core MIDI connection or though Audiobus 3 MIDI ports. CONTROL APPS ON ANOTHER IOS DEVICE OR YOUR MAC ChordUp can send MIDI notes to another iOS device through a Bluetooth MIDI connection. If you want to control an App running on your Mac you can connect through Bluetooth, Wi-Fi or USB. FEATURES • 108 available chords (9 chord types for each of the 12 notes). • 10 embedded instruments: Acoustic Piano, Electric Piano, Guitar, Organ, Accordion, Vibraphone, Strings, 3 synth sounds. • 12 pads surface (for piano like parts) • 6 strings surface (for guitar strumming, power chords and arpeggios) • Expression pad surface (allows to play full chords and control an expression parameter at the same time) • Smart sustain. With the sustain enabled, when you switch chords, only the notes of the current chord that don't belong to the next chord are muted. • Octave transposition. • Chord locking. You can lock one chord type for a chord button. • Buttons size adjustment on iPad. • CoreMIDI support. • Audiobus support (Audio sender port, MIDI sender port)

About

Telemann 6 Duets

Features
Read full description

This App contain the Telemann 6 Duets for 2 Treble Recorders .Since it is independent of each part, by playing the other part, you can practice together. This app, do not go out together for a marker to play. This app will be replaced by the score in accordance with the progress of the song. It is A = 440Hz (modern pitch)and A= 415(baroque pitch).It is to be able to play at a speed of 6 stages. Along with how to practice to play for each movement, it is also possible to practice by playing through one song sonata.

Screenshots

ChordUp4 screens
Telemann 6 Duets4 screens

Verdict

The call

The clearest difference is update cadence: ChordUp at every 3 weeks against Telemann 6 Duets's every 15 months. Telemann 6 Duets's advantage is price ($0.99 vs $5.99). 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

ChordUp costs $5.99 and Telemann 6 Duets $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ChordUp ships an update every 3 weeks, Telemann 6 Duets every 15 months. The most recent releases landed on November 2, 2026 and October 12, 2026 respectively.

Scorecard2 real differences · 8 level
ChordUp versus Telemann 6 Duets: the parameters behind the verdict, then further details
ParameterChordUpTelemann 6 Duets
Price$5.99$0.99 — better
Rating4.4 (41 ratings) — better—
Positive reviews94.3% of reviews—
Number of ratings41 — better—
Update frequencyEvery 3 weeks — betterEvery 15 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size30 MB311 MB
Age rating4+4+
DeveloperDmitrii Klochkovmasafumi sasaki

In-app purchases

None

ChordUp

No in-app purchases

None

Telemann 6 Duets

No in-app purchases

Questions

Is ChordUp free?
ChordUp costs $5.99, with no in-app purchases.
Is Telemann 6 Duets free?
Telemann 6 Duets costs $0.99, with no in-app purchases.
Do ChordUp or Telemann 6 Duets have ads?
Neither ChordUp nor Telemann 6 Duets shows ads.
Which is updated more often, ChordUp or Telemann 6 Duets?
ChordUp ships an update every 3 weeks, and Telemann 6 Duets every 15 months. Most recently, ChordUp was updated on November 2, 2026 and Telemann 6 Duets on October 12, 2026.

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