Singing Fingers vs Harmonizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Singing Fingers
Create vibrant visual art by fingerpainting with sound. Touch the screen while making a noise, and watch colorful paint appear. Tap the paint to replay the original sound, turning your creations into interactive musical instruments.
- Fingerpaint with sound
- Colorful paint visualization
- Tap paint to replay sound
- Create musical instruments
- Experiment with sounds
- Voice interaction
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Singing Fingers lets you fingerpaint with sound. Just touch the screen while you make a sound, and colorful paint appears. Touch the paint to play back the sound again! You can paint your own musical instrument and play it, play with your voice, experiment with sounds, or create whatever else you can imagine.
Harmonizer
This app helps infants develop perfect pitch by playing Shepard tones, aiding in pitch identity development. It also facilitates the study of chord relationships and displays the pitch of your singing.
- Shepard tone playback
- Pitch identity development
- Chord relationship study
- Vocal pitch display
- Infant music education
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See and hear how music fits together. Harmonizer turns musical relationships into a colorful, interactive grid. Tap a hexagon to hear a note, or tap the triangle between three notes to play a major or minor chord. Sing or play a single note on an instrument, and watch the detected pitch light up. EXPLORE NOTES AND CHORDS Discover how neighboring notes connect through perfect fifths, major thirds, and minor thirds. Major and minor chords form triangles, making harmony something you can see, hear, and explore with your fingers. SEE YOUR VOICE Use the microphone to highlight the pitch you sing or play. Listen to a note, try matching it with your voice, and explore the connection between sound and color. CHOOSE YOUR LABELS Show note names or Movable Do syllables, with your choice of tonic. Keep labels visible, show them only when notes are active, or hide them to focus on the colors and sounds. EXPLORE YOUR WAY Choose from playing, pitch detection, or a mode that listens when you stop playing. Adjust the grid size to suit your screen and how you like to interact. HEAR HARMONY DIFFERENTLY Harmonizer uses Shepard tones—layered sounds that emphasize a note’s identity without a distinct octave. Every hexagon with the same note name produces the same sound. For curious beginners, students, teachers, and musicians, Harmonizer offers a hands-on way to explore pitch, chords, and musical patterns. No music theory knowledge is needed to start: touch a note and listen. Pitch detection requires microphone access.
Screenshots
Verdict
The clearest difference is price: Harmonizer at Free against Singing Fingers's $0.99. Harmonizer also leads on rating (4.1 vs 3.5) and update cadence (every 33 months vs every 96 months). Singing Fingers's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 17.0). On review sentiment, ratings volume, ads and in-app purchases 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
Harmonizer is free to download; Singing Fingers costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Harmonizer holds the better App Store score, 4.1 against 3.5. Both are backed by a comparable volume of ratings — 10 and 16 respectively. Written reviews complicate that: 49% of Singing Fingers's written reviews are positive against 45% of Harmonizer's, so the app with the better star average is not the one people write more warmly about.
Singing Fingers ships an update every 96 months, Harmonizer every 33 months. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.
| Parameter | Singing Fingers | Harmonizer |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.5 (10 ratings) | 4.1 (16 ratings) — better |
| Positive reviews | 49.2% of reviews — better | 45.5% of reviews |
| Number of ratings | 10 | 16 — better |
| Update frequency | Every 96 months | Every 33 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 19 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Beginner's Mind | Matthew McLaughlin |
Customer experience
Singing Fingers
Harmonizer
Bugs and requests
Singing Fingers
Reported bugs
32 issues- Black screen on open
- Crashes frequently
- Doesn't draw with finger
- Sound is intermittent
- Screwed up other phone things
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- No sound while drawing
- Playback is a mess
- Multitouch tracking worse
- Blank page, nothing happens
- Doesn't work on iPhone 6S
- Cannot get it to record
- Won't work for me
- Does not let me draw
- Records poorly
- Not customized for iPad
- Sound quality is awful
- Sound is fuzzy
- Makes voice annoying
- Sound not clear/muffled
- How to draw?
- Won't install
- Nothing happened when drawing/speaking
- Can't hear playback
- Fuzzy sound, doesn't recognize mic/fingers
- No sound out headphone jack
- Echo on playback
- Battery drainer
- Does not work with iPhone 2G
- Froze
- Doesn't recognize iTouch mic
- Crashing and freezing
- Doesn't recognize fingers
Requested features
3 requests- Higher quality setting
- Update to enhance mic sound
- Retina display support
Harmonizer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Singing Fingers
No in-app purchases
Harmonizer
No in-app purchases









