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ECHO-TERZA

by Gentian Coci

  • Music
  • Paid
View on the App Store
Rating
0.0
0 ratings
Last update
Jun 7, 2026
Version 1.8
Size
13 MB
Category
Music
Tracked since
Oct 25, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

ECHO-TERZA is an advanced microtonal MIDI controller designed for musicians, composers, and performers exploring alternative tuning systems and intelligent harmonization. With its professional TERZA engine for seconda/terza voices, a powerful microtonal system, and a full suite of routing and performance tools, ECHO-TERZA opens new creative possibilities for modern music production and live performance.

Key Features

  • TERZA Engine – Professional seconda/terza harmonization for any synth.
  • Auto Chord Detection – Intelligent chord recognition with automatic preset switching.
  • MINOR HARM System – Three modes: Natural Minor, Harmonic Minor, Hijazskiar scale.
  • Poly / Mono Modes – Poly: full harmonization · Mono: seconda via separate channel.
  • Microtonal Engine – Precise pitch bend control with custom scales.
  • Dual System (BOTH) – Run TERZA + Microtonal simultaneously for advanced harmony.
  • Transpose System – Real-time transpose with chord detection compensation.
  • MIDI Learn Pro – Fast & Normal modes with smart routing automation.
  • Auto Sound Detection – Smart Mono/Poly switching via Portamento CC.
  • Advanced Presets – TERZA, Scale, and Combi presets with flexible toggles.
  • Custom Scales – Create and save your own microtonal scales.
  • Universal Connectivity – Works with all synths · Bluetooth MIDI supported.
  • Trigger Button Mapping – Flexible trigger button mapping for live setups.
  • Sound Manager – Full sound management and quick switching.
  • Auto Sound Recognition – Intelligent sound detection for streamlined workflow.
  • Multi-Channel Output – Multiple output channels for studio and live rigs.
  • Smart MIDI Routing – Intelligent routing that simplifies complex setups.
  • Switch-Toggle Mode – Choose between momentary or toggle trigger behavior.
  • Note Range Control – Define MIDI note ranges for split keyboards.
  • Latency Control – Fine-tune timing to fit any setup.
  • Volume Control – Precise per-channel/trigger volume adjustment.

Why Use It
ECHO-TERZA is more than just a controller – it’s a harmonization and microtonal system that:

  • Integrates seamlessly with DAWs, AUM, Audiobus, and hardware synths.
  • Delivers seconda/terza voices and microtonality without external modules.
  • Sets up fast with MIDI Learn Pro and stays stable in live performance.

Credits
Designed & Developed by

  • Giannis Tsotsis – Developer
  • Georgios Tsotsis – Designer

© 2025 ECHOPAIS MIDI System · All rights reserved.

What’s new

Release notes for the latest version, as written by the developer.

v1.8
Original · root

Update Color

Rank history

Daily position in the Greece charts. #1 is at the top.

Best rank
#8
Current rank
#8
Days charting
1 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

68/100

Not flagged as small & simple

  • Developer size70% · 25

    Developer: 2 apps on the charts

  • Audience size– · 20

    No data, weight redistributed

  • App size100% · 10

    Size: 13 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof40% · 30

    Best rank #8, 1 country

An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2

How the score works

Version history

  • 1.8LatestReleased Jun 7, 2026