Comparison

bismark CtrlSlide vs ECHO

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

Head to head
About

bismark CtrlSlide

Features
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bismark CtrlSlide is a touch-based MIDI controller that allows you to send Control Change (CC) and Program Change (PC) messages to external MIDI devices or apps. With an intuitive multi-slider interface, CtrlSlide makes it easy to adjust MIDI parameters in real time. Whether you're controlling hardware synthesizers, virtual instruments, or exploring MIDI behavior, this app provides a flexible and reliable control surface at your fingertips. Designed for musicians, producers, and sound designers, CtrlSlide supports various MIDI connection methods including USB, Bluetooth, Wi-Fi, and virtual MIDI routing (depending on your device and operating system). Key Features: β€’ Send MIDI Control Change (CC) and Program Change (PC) messages β€’ Customize multiple sliders for flexible real-time control β€’ Connect to external MIDI devices or other apps β€’ Supports USB, Bluetooth, Wi-Fi, and virtual MIDI β€’ Includes predefined CC numbers for quick setup β€’ Clean, responsive interface optimized for touch Use CtrlSlide to fine-tune your synths, experiment with sound design, or enhance your live performance setup β€” all from your iPhone or iPad.

About

ECHO

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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 Β· 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 Β· 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 Β© 2025 ECHOPAIS MIDI System Β· All rights reserved.

Screenshots

bismark CtrlSlide3 screens
ECHO2 screens

Verdict

The call

The clearest difference is price: bismark CtrlSlide at $1.99 against ECHO's $129.99. ECHO's advantage is update cadence (every 2 weeks vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

bismark CtrlSlide costs $1.99 and ECHO $129.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

bismark CtrlSlide ships an update every 2 months, ECHO every 2 weeks. The most recent releases landed on September 19, 2026 and September 8, 2026 respectively.

Scorecard2 real differences Β· 4 level
bismark CtrlSlide versus ECHO: the parameters behind the verdict, then further details
Parameterbismark CtrlSlideECHO
Price$1.99 β€” better$129.99
Update frequencyEvery 2 monthsEvery 2 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac β€” better
Requires iOS15.015
Further details β€” not scored
Size19 MB13 MB
Age rating4+4+
Developerbismark LLCGentian Coci

In-app purchases

None

bismark CtrlSlide

No in-app purchases

None

ECHO

No in-app purchases

Questions

Is bismark CtrlSlide free?
bismark CtrlSlide costs $1.99, with no in-app purchases.
Is ECHO free?
ECHO costs $129.99, with no in-app purchases.
Do bismark CtrlSlide or ECHO have ads?
Neither bismark CtrlSlide nor ECHO shows ads.
Which is updated more often, bismark CtrlSlide or ECHO?
bismark CtrlSlide ships an update every 2 months, and ECHO every 2 weeks. Most recently, bismark CtrlSlide was updated on September 19, 2026 and ECHO on September 8, 2026.

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