Comparison

Harmony vs Plot Point Echo

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

Head to head
About

Harmony

Engage in a calming puzzle game where you tap squares to mirror musical notes and create relaxing melodies. This game offers a stress-free experience, perfect for unwinding and improving focus.

Highlights
  • Tap squares to mirror music notes
  • Create relaxing melodies
  • Anxiety and OCD relief
  • Multiple instrument options
  • Minimalist IQ test gameplay
  • Over 1000 levels
Features
Read full description

Features: Tap and Glow: Harmony app is very easy to play: take the line as a reference to tap the squares and mirror the music notes. The squares will glow when you tap on them! Anxiety antidote: The relaxed melodies created on Harmony are perfect to kill anxiety or OCD problems. In fact, Infinity Games are known for slowing a player's heart rate after 10 levels played. Free of timers and other stress features, this game feels like a yoga session in paradise! Different instruments: There are several instruments available on Harmony. You start with a piano, but you can go for a different melody later if you prefer wind instruments or string instruments. Music, Maestro: Tapping the squares on the right tempo is the only thing you need to create smart music on this calm and minimalist IQ test. Can you play with different instruments? Just like paradise: Like a mirror of relaxing sounds, the Harmony app provides you a calm IQ test to feed your soul and tease your brain. You must get the same look on both sides of the line. Just tap the right polygon and the shapes will glow! Boss levels: Besides the classical music and the tacit IQ test present, the boss levels featured on the Harmony app will relax your soul! Check how many relaxed melodies can you create during a boss level! Music, Maestro! Harmony: Relax Melodies is a smart music game reminiscent of a guitar hero, where you must reflect the music notes by tapping the free squares. To be successful, you need to take the white line as a reference and create asymmetry. You will finish some levels in a heartbeat. Others will demand more concentration. Each tap will produce a minimalist melody, providing the illusion you are a real maestro! Like a guitar hero, you will feel like a real musician in paradise when you tap the music notes on the right tempo. The major difference between guitar hero and the Harmony app is the classical music: the relaxing sounds featured in the game are calm and minimalist. Playing Harmony is very easy: just reflect each polygon and the symmetry will glow. If a polygon is three spaces on the right, you must tap an empty polygon three spaces on the left. Once you reflect every symmetry, the squares will glow, and… it’s done! By tapping the music notes on the right tempo, you will be the maestro of relaxing melodies. Merging the brain exercise of an IQ test and the slow heartbeat of a yoga session, we could say you are smartly relaxing. Just look at it as a mirror: your brain will be pleased for each melody you reflect! The chapter names are based on classical music composers – like Sibelius or Vivaldi – and each chapter has its own relaxing sounds palette. Each chapter will bring a different polygon, melody, and symmetry. Your soul will rejoice with the 24 different relax melodies and more than minimalist 1000 levels! Vivaldi built his legacy with the Four Seasons, you can start yours with Harmony! Feel free to activate your guitar hero mode and tap the music notes as fast as you can! Go from mid-tempo to up-tempo! Music, Maestro! The smart music combined with a calm IQ test will create a paradise environment. Players who suffer from anxiety or OCD problems praise our games. The Harmony app works as a yoga class and will keep you calm, slowing your heartbeat. The relaxing sounds and the guitar hero gameplay will numb your soul and help you deal with anxiety or OCD, while you become a classical music maestro. Harmony: Relax Melodies is a smart music odyssey through an abstract and a minimalist paradise, where tapping a polygon and reflecting asymmetry is all you need to do to get rid of anxiety or OCD symptoms. Terms of Use: https://infinitygames.io/tos/

About

Plot Point Echo

Features
Read full description

Plot Point Echo gives you an equation and asks you to read it with your eyes. A function appears above the grid. Five vertical tracks mark specific x values across the coordinate plane. On each track sits a blue dot. Your job is to drag each dot to the y-position where you think the function passes — to predict, before seeing the curve, where the graph actually goes. Then you submit. The true curve draws itself across the grid from left to right, tracing the function exactly. As it passes each track, the dot at that position pulses. Green means you were within a third of a grid unit — you read the function correctly. Amber means you were close. Red means the curve passed somewhere you didn't expect. This is the moment the game is built around. Not the dragging — the reveal. Seeing where you were right and where the curve surprised you. Understanding why a function like f(x) = x² curves upward symmetrically while f(x) = x³ − x dips below zero between −1 and 1 before rising again. The curve doesn't just show you the answer. It shows you why your prediction was wrong, and that difference is what builds intuition. At low scores the functions are simple — linear equations with clear slopes, standard parabolas. The curve reveal feels obvious in retrospect. Then sinusoidal functions appear, and the periodic rise and fall requires a different kind of reading. Then exponentials, where the curve is nearly flat for negative x values and rises steeply for positive ones — a shape that catches players consistently until they have seen it enough times that it becomes instinctive. At high scores the functions are composite — a sine wave with a linear drift, a cubic with two turning points, a square wave approximation. The equation is always shown. The information is always there. Plot Point Echo is not a memory game. It is a translation game — from symbol to shape, from equation to curve, from mathematics to geometry. No ads. No arithmetic required. No wrong answers during play — only the reveal, and what you learn from it. Just the equation, the dots, and the curve waiting to be drawn.

Screenshots

Harmony4 screens
Plot Point Echo4 screens

Verdict

The call

The clearest difference is in-app purchases: Plot Point Echo at none against Harmony's 10. Plot Point Echo also leads on ads (none vs shown). Harmony's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 18.0). On price 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

Both are free to download. Harmony sells 10 in-app purchases, starting at $4.99 per 7 days. Plot Point Echo asks for nothing beyond the download.

Scorecard4 real differences · 6 level
Harmony versus Plot Point Echo: the parameters behind the verdict, then further details
ParameterHarmonyPlot Point Echo
PriceFreeFree
Rating4.7 (834 ratings) — better—
Positive reviews74.4% of reviews—
Number of ratings834 — better—
Update frequencyEvery 3 months—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better18.0
Further details — not scored
Size192 MB2 MB
Age rating4+17+
DeveloperINFINITY GAMES, LDAJason Dawson

Bugs and requests

Harmony

Reported bugs

3 issues
  • Sound not working after ads
  • Losing progress when closing the app
  • Inconsistent level tracking

Requested features

5 requests
  • More variety in instrument sounds
  • Ability to replay completed levels
  • Option to disable ads without subscription
  • Improved puzzle difficulty progression
  • Better integration of purchased content

Plot Point Echo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Harmony

Subscriptions2
  • 1 Week Subscription3 Days trial$4.997 Days
  • 1 Month Subscription$12.991 Month
One-time8
  • Nocturne$1.99
  • Adagio for Strings$1.99
  • Carmina Burana$3.99
Show 5 more
  • Four Seasons$3.99
  • Für Elise$5.99
  • La Traviata Discount$7.99
  • 150HINTS+NoADS+UNLOCK WORLDS$9.99
  • ∞HINTS+NoADS+UNLOCK WORLDS$18.99
None

Plot Point Echo

No in-app purchases

Questions

Is Harmony free?
Harmony is free to download, with in-app purchases available.
Is Plot Point Echo free?
Plot Point Echo is free to download, with no in-app purchases.
Do Harmony or Plot Point Echo have ads?
Harmony shows ads; Plot Point Echo does not.

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