Mass vs Note to Be
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mass
This app is a physics-based MIDI generator that allows musicians to create complex generative sequences, organic modulations, and explore boundless musical experimentation. It offers a powerful toolkit for creative control and can be used as a standalone application or an AUv3 plugin.
- Generative Sequences
- Living Modulations
- Euclidean Pattern Sequencing
- Flexible MIDI CC
- Physics-Based Animation
- Standalone & AUv3 Plugin
- MIDI Sync
- iCloud Sync
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Open the door to new musical dimensions with Mass — a physics-based MIDI generator crafted to inspire musicians across genres. Add complexity to your sequences, explore generative patterns, or create organic modulations; Mass is your gateway to boundless musical experimentation. • Generative Sequences: Sculpt intricate melodies and rhythms that evolve over time. • Living Modulations: Shape fluid, natural modulations that respond like living elements. • Total Creative Freedom: Need a spark of randomness or complete control? Mass lets you move seamlessly between guided automation and full improvisation. Whether you’re diving into ambient soundscapes, exploring the depths of MIDI control, or crafting intricate modulations, Mass is your key to immersive sonic worlds. Available as a standalone MIDI generator and AUv3 plugin, Mass transforms your favorite hardware and software instruments into a sandbox of endless possibilities. With Mass, you’ll find an extensive toolkit for creative control and experimentation. Here’s what you can expect: • Euclidean Pattern Sequencing: Easily create complex sequences by layering polyrhythmic Euclidian patterns. • Flexible MIDI CC: Modulate and sequence any MIDI CC parameter, allowing you to breathe life into every detail of your sound. • Physics-Based Animation: Apply physics to sequences and modulations, creating dynamic, evolving movements within your music. • Powerful Controller: Mass is a powerful MIDI controller, allowing you to manipulate your favorite hardware and software instruments in either standalone or AUv3 modes. • MIDI Sync: Synchronize with external hardware and software using standard MIDI sync capabilities. Mass can function as the primary clock, or be synced to a host clock. • iCloud Sync: Seamlessly share your creations across devices with iCloud syncing. Work in the standalone version or AUv3 plugin, without missing a beat. With Mass, you’re free to explore musical layers, rhythms, and motion in new ways. Let it guide your creative journey, transforming each idea into a boundless musical experience.
Note to Be
This app offers advanced MIDI quantization for iOS musicians. It allows precise control over note selection, octave flexibility, and MIDI CC integration for crafting harmonious compositions and dynamic live performances. Supports microtonal scales and multi-synth setups.
- Customizable note and octave selection
- MIDI CC to note conversion
- Multi-synth channel assignment
- Live performance toggles
- Microtonal scale support (Scala Library)
- MPE polyphonic playback
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Take full control of your MIDI experience with Note to Be—the powerful iOS app designed to transform how you interact with your music. Whether you're working with a MIDI keyboard, sequencer, or MIDI CC input, Note to Be ensures your notes are perfectly quantized to the nearest selected note, allowing you to craft precise, harmonious compositions with ease. Key Features: - Customizable Note Selection: Choose individual notes from any octave, or apply your selection across the full -1 to +8 octave range. - Octave Flexibility: Work within the entire octave spectrum, selecting and unselecting notes with a simple tap. - MIDI CC Integration: Use MIDI CC from hardware controllers or apps like ShiftBud to convert control changes into quantized notes. Easily create chord voicings and dynamic live performances. - Multi-Synth Support: Assign different MIDI channels to multiple synths, allowing each to respond to the quantized MIDI output independently. - Live Performance Enhancement: Engage the 'all notes' toggle to instantly apply note selections across all octaves or quickly select notes in a specific key and scale. - Microtonality: Select a microtonal scale from the Scala Library with +5000 microtonal scales, or import your own to the iCloud folder. Play the MPE supported synths polyphonically. With Note to Be, your music becomes a canvas, and every note is a brushstroke. Unlock new creative possibilities and refine your sound with the precision of MIDI quantization, right from your iOS device. Note to Be is a MIDI app and does not produce any sound on its own. You need a MIDI input source and an audio output destination in order to work with Note to Be. The AUv3 plugin requires an AUv3 host app such as AUM, Logic Pro for iPad, Loopy Pro, Cubasis, Nanostudio, apeMatrix, Audiobus etc.
Screenshots
Verdict
Mass and Note to Be both sit at 5.0 stars, but that hides the real split: 100% of Mass's written reviews are positive against 50% of Note to Be's. Note to Be's advantage is update cadence (every 9 days vs every 4 months) and price ($3.99 vs $9.99). On rating, 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
Mass costs $9.99 and Note to Be $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Mass against 4.9 for Note to Be. Both are backed by a comparable volume of ratings — 11 and 7 respectively. Written reviews are what separate them: 100% of Mass's written reviews are positive against 50% of Note to Be's.
Mass ships an update every 4 months, Note to Be every 9 days. The most recent releases landed on September 30, 2026 and September 21, 2026 respectively.
| Parameter | Mass | Note to Be |
|---|---|---|
| Price | $9.99 | $3.99 — better |
| Rating | 5.0 (11 ratings) — better | 4.9 (7 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 11 — better | 7 |
| Update frequency | Every 4 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Usable Creations | Cem Olcay |
Customer experience
Mass
Note to Be
In-app purchases
Mass
No in-app purchases
Note to Be
No in-app purchases








