Comparison

Harmonia vs ODDADA

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

Head to head
About

Harmonia

Train your ear with this music puzzle game. Listen to a target sound, then recreate it from memory by selecting instruments and adjusting notes. Explore musical worlds and compete in daily challenges to test your auditory skills.

Highlights
  • Recreate sounds from memory
  • Adjust instrument pitches
  • Hundreds of levels across musical worlds
  • Daily challenges
  • Ear training mechanics
  • No time pressure
Features
Read full description

Harmonia is a music puzzle game that trains your ear. You hear a target sound and rebuild it from memory. Toggle the right instruments and dial in the right notes before submitting to see how you did. No rush, no luck. Just you, your ears, and your instruments. HOW TO PLAY Listen to the target sound. Your replays are limited, so listen carefully! Toggle instruments on or off to match what you heard Slide each instrument's pitch selector to find the right note Every toggle and note counts, choose wisely Submit your mix! EXPLORE MUSICAL WORLDS Each world brings its own instruments and its own challenge across hundreds of levels. Electronic world coming soon! DAILY CHALLENGE One new puzzle every day, that's the same for everyone. Compare your result with friends and see who's got the best ears! CHALLENGE YOUR EAR Levels start simple. One instrument, a handful of notes. By the time you're deep into a world, you're untangling up to five instruments with close, tricky timbres. It's a genuine ear-training curve! WHY HARMONIA Most puzzle games test your reflexes. Harmonia tests something rarer: your ear. Whether you've got years of music training or you've never touched an instrument, Harmonia has something for everyone. Download Harmonia and find out how good your ear really is.

About

ODDADA

This app is a creative musical toybox where users can build unique soundscapes using interactive elements. Collect melodies, unlock new instruments and gadgets, and customize virtual cassettes of your creations. Share your music as audio or video files.

Highlights
  • Collect melodies and loops
  • Unlock gadgets and upgrades
  • Customize and collect virtual cassettes
  • Export songs as audio or video
  • Playful and relaxing musical experience
Features
Read full description

ODDADA is an award-winning musical toybox that lets everyone make music. Landscapes become your canvas, machines become your instruments and little buildings and birds become your notes. COLLECT MELODIES AND LOOPS Take your train through various levels and watch it grow with each melody you create. Explore and tinker with a range of instruments from Ostinato Crabs and Synthesizer Jellyfish to Arpeggio Caterpillars. UNLOCK GADGETS AND UPGRADES Expand your musical range by unlocking gadgets that can change the tempo, notes, sounds and functionality of the levels. CUSTOMIZE AND COLLECT YOUR CASSETTES Print your song onto a virtual cassette, decorate it with colors and stickers and build an ever-growing cassette collection. Your cassette player lets you listen to your songs over and over again. EXPORT AND SHARE YOUR SONGS Save your songs as audio or video files and share them with your friends! WHAT ODDADA IS NOT • professional music software • a tool to recreate or cover existing songs • a city builder • a puzzle or competitive game Instead, ODDADA is meant to be a playful and relaxing experience for everyone, no matter what skill level or age. Create free from pressure and perfectionism. We hope you enjoy your time making music! No ads. Obladi-Oblada-ODDADA!

Screenshots

Harmonia4 screens
ODDADA4 screens

Verdict

The call

The clearest difference is price: Harmonia at Free against ODDADA's $4.99. ODDADA's advantage is in-app purchases (none vs 6) and ads (none vs shown). On rating, review sentiment 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

Harmonia is free to download; ODDADA costs $4.99 up front. Harmonia sells 6 one-off in-app purchases. ODDADA asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Harmonia against 5.0 for ODDADA. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Harmonia ships an update monthly, ODDADA every 2 days. The most recent releases landed on November 1, 2026 and November 10, 2026 respectively.

Scorecard8 real differences · 3 level
Harmonia versus ODDADA: the parameters behind the verdict, then further details
ParameterHarmoniaODDADA
PriceFree — better$4.99
Rating5.0 (2 ratings)5.0 (8 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings28 — better
Update frequencyMonthlyEvery 2 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#18 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size112 MB438 MB
Age rating12+4+
DeveloperRowan VredenburgSven Ahlgrimm

Customer experience

Harmonia

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

ODDADA

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

6 purchases

Harmonia

One-time6
  • Refill Lives$0.99
  • Replay Pack (Small)$0.99
  • Hint Pack (Small)$0.99
Show 3 more
  • Replay Pack (Large)$1.79
  • Hint Pack (Large)$1.79
  • Remove Ads$3.99
None

ODDADA

No in-app purchases

Questions

Is Harmonia free?
Harmonia is free to download, with in-app purchases available.
Is ODDADA free?
ODDADA costs $4.99, with no in-app purchases.
Which has better reviews, Harmonia or ODDADA?
Harmonia and ODDADA are both rated 5.0 out of 5 on the App Store, from 2 and 8 ratings respectively.
Do Harmonia or ODDADA have ads?
Harmonia shows ads; ODDADA does not.
Which is updated more often, Harmonia or ODDADA?
Harmonia ships an update monthly, and ODDADA every 2 days. Most recently, Harmonia was updated on November 1, 2026 and ODDADA on November 10, 2026.

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