Comparison

Santoor HD vs Trapezoid

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

Head to head
About

Santoor HD

Experience the traditional Santoor instrument with realistic sound and touch controls. Play individual notes, create vibrate effects by sliding, and even play semitones. Record and playback your musical creations with loop and fast-forward options.

Highlights
  • Realistic Santoor instrument simulation
  • Individual string touch for notes
  • Vibrate effect with horizontal sliding
  • Semitone playback option
  • Record and playback functionality
  • Loop and fast-forward playback
Read full description

Played the Harp? Try the Santoor - A Traditional Musical Instrument. Supports touching individual strings to play notes as well as sliding horizontally across a string for VIBRATE effect. Fade out your vibrate effect by sliding your finger to the edge of the Santoor. Now also includes the option to play semitones! ***** Ranked in the top 7 and top 25 in the India APP STORE in the Music category for iPad and iPhone respectively. *****Ranked in the top 31 in the Greece APP STORE in the Music category for iPad. ***** Ranked in the top 45 in the US APP STORE in the Music category for iPad. FEATURES * Hi Quality Retina Display Optimized Graphics * Studio Quality Sounds. Realistic Vibrate Effect with tuned strings across two octets. New option to also play Semitones * Fast, Fluid Touches and Sounds. Recognizes multiple touches with both hands * Features sliding across a string for VIBRATE effect. * Slide along a string to the edges for a unique fade out effect. * Switch to play Semitones to truly play out all of your melodies! (Pro Version) * Record And Playback your own creations * Options to Loop playback of recordings and also to play them at Fast Forward Speeds Questions/suggestions/bugs? Email us at: thesoftwarekitchen@gmail.com To fun times with "Santoor HD"!!

About

Trapezoid

This virtual instrument accurately simulates the sound and playability of a hammered dulcimer. It offers multiple tuning options, drag roll effects, and MIDI compatibility for a realistic musical experience. Designed for both beginners and experienced players, it fits right in your pocket.

Highlights
  • Authentic hammered dulcimer sound
  • Standard and Michigan tunings
  • Drag roll effects
  • MIDI keyboard compatibility
  • Velocity sensitive MIDI input
  • Note name display
Features
Read full description

Trapezoid is an amazing Hammered Dulcimer that can fit in your pocket. Written by an experienced Hammered Dulcimer player, this virtual dulcimer sounds and plays like the real thing! This app has the full range of a standard 12/11 style (9/9 style for 4:3 format iPads) instrument and supports both Standard and Michigan (octave) tunings. 12/11 means there are 12 bridges on the Treble (left) side of the instrument, 11 bridges on the Bass (right) side of the instrument. To play, just touch the strings on either side of the left (Treble) bridge or the left side of the right (Bass) bridge just like on the real instrument. To get repeated note "drag roll" effects, drag quickly horizontally across the strings. The sensitivity of the drag effect may be set on the settings screen. Touch the "?" to show the note names for the strings. Touch the "S" or "M" below the "?" to toggle between Standard and Michigan (octave) tuning. Touch the "Shhh" icon on the upper right corner to quiet all the strings. Touch the "i" to bring up the settings screen where you can set the overall volume, enable or disable the drag roll feature, and set the roll sensitivity for how far you need to drag to get the roll effect. The app also may be played from a MIDI keyboard connected to a hardware MIDI interface or other MIDI controller or MIDI file player apps. On the settings page you may select the MIDI channel number. When playing via MIDI, the app is velocity sensitive based on the velocity sent with the Note-on events. Lowest note is A2 (MIDI note 45). Range is full chromatic from A2 through D6. The app will respond to MIDI volume messages on the selected MIDI channel. To truly experience the full stereo spread of the instrument, plug in a set of headphones or amplified speakers. Playing Hint for Smaller Phone Users: On the smaller screen phones the strings are pretty close together. If you are having trouble hitting the notes you want, show the note names by touching the "?" and then, when playing touch directly on the note names for best playing accuracy. Audio samples of Wes Chappell's amazing dulcimer provided by Jesse Chappell from ThumbJam.com. The instrument was built by James Jones, from Bedford, VA. I have played and taught the Hammered Dulcimer for over 20 years. This app sounds and plays as close to the real instrument as I'm capable of doing on a touch screen. Be sure to visit the AppCordions.com website to watch the demo videos!

Screenshots

Santoor HD2 screens
Trapezoid3 screens

Verdict

The call

The clearest difference is rating: Trapezoid at 5.0 against Santoor HD's 4.3. Trapezoid also leads on in-app purchases (none vs 1) and update cadence (every 9 days vs every 3 months). Santoor HD's advantage is ratings volume (157 vs 2). On ads, 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

Santoor HD costs $2.99 and Trapezoid $1.99 up front. Santoor HD sells 1 one-off in-app purchase. Trapezoid asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Trapezoid holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Santoor HD has 157 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 85% of Santoor HD's written reviews are positive against 100% of Trapezoid's.

UpkeepUpdate frequency

Santoor HD ships an update every 3 months, Trapezoid every 9 days. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

Scorecard7 real differences · 3 level
Santoor HD versus Trapezoid: the parameters behind the verdict, then further details
ParameterSantoor HDTrapezoid
Price$2.99$1.99 — better
Rating4.3 (157 ratings)5.0 (2 ratings) — better
Positive reviews84.9% of reviews100.0% of reviews — better
Number of ratings157 — better2
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.010.0 — better
Further details — not scored
Size29 MB46 MB
Age rating4+4+
DeveloperSoftware-KitchenMichael Eskin

Customer experience

Santoor HD

All ratings157 ratings
Positive83.4%
Neutral7.0%
Negative9.6%
Written reviews119 reviews
Positive84.9%
Neutral4.2%
Negative10.9%

Trapezoid

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Santoor HD

Reported bugs

8 issues
  • App crashes immediately upon opening
  • Freezes on startup screen with stuck audio
  • Black screen with continuous sound on launch
  • Incompatible with iOS 10.2 and later versions
  • Popup keyboard fails to appear when saving recordings
Show 3 more
  • App becomes unresponsive and requires force close
  • Strange noise and visual glitches during startup
  • Recording feature doesn't function properly

Requested features

10 requests
  • iOS 11+ compatibility and regular updates
  • Note labels on strings for non-harp players
  • Ability to layer and edit recorded tracks
  • Audio input/output functionality
  • Better pitch control options
Show 5 more
  • Improved rhythm buttons with customization
  • Remove or reduce aggressive monetization
  • Better note selection precision
  • Export recorded songs functionality
  • Semitone access without paywall

Trapezoid

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Santoor HD

One-time1
  • Santoor HD - No Ads$3.99
None

Trapezoid

No in-app purchases

Questions

Is Santoor HD free?
Santoor HD costs $2.99, and also offers in-app purchases.
Is Trapezoid free?
Trapezoid costs $1.99, with no in-app purchases.
Which has better reviews, Santoor HD or Trapezoid?
Trapezoid is rated higher. Santoor HD averages 4.3 out of 5 from 157 ratings, while Trapezoid averages 5.0 from 2 ratings.
Do Santoor HD or Trapezoid have ads?
Neither Santoor HD nor Trapezoid shows ads.
Which is updated more often, Santoor HD or Trapezoid?
Santoor HD ships an update every 3 months, and Trapezoid every 9 days. Most recently, Santoor HD was updated on October 16, 2026 and Trapezoid on October 4, 2026.

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