Know the Notes vs Celestine Granular FX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Know the Notes
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Unlock your musical potential with Know the Notes, the ultimate ear training companion for musicians of all levels. Whether you're a beginner learning to identify notes or an advanced player refining your pitch, our app offers a responsive simple to use practice environment. Realistic Audio Experience Forget static, low-quality samples. Know Your Notes uses advanced real-time audio synthesis to generate sounds instantly. Piano: Rich, synthesized piano tones. Guitar: Plucked strings using the Karplus-Strong algorithm. Tone: Pure sine waves for focused frequency training. Practice Mode: Freely explore notes on an interactive keyboard with immediate visual feedback. Track your streaks and improve at your own pace. Quiz Mode: Test your skills with customizable quizzes. Choose your quiz length and difficulty. Delayed Feedback enhances real ear-training exams by hiding results until the end of the quiz. Customizable and Learning Difficulty Control: Toggle sharps and flats (black keys) to match your skill level. Settings: Adjust quiz lengths and feedback styles to suit your learning preference. Stop guessing and start knowing. Download Know Your Notes and tune your ear today!
Celestine Granular FX
Transform any audio input into evolving soundscapes, from shimmering clouds to rhythmic fragments. This app offers real-time granular processing with eight distinct engines and built-in effects for creative sound design and musical performance.
- Live-buffer granular processing
- Eight distinct granular engines
- Real-time audio transformation
- Built-in wavefolding, bitcrush, and reverb effects
- Tempo-synced rhythmic patterns
- AUv3 compatible
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Feed it vocals, guitar, synths, piano, drums, field recordings, or full mixes, and Celestine transforms the incoming sound into shimmering clouds, drifting harmonics, orbiting textures, rhythmic fragments, and evolving ambient beds. No samples to load. Celestine listens continuously through a rolling live buffer. Whatever you play becomes the source material. Incoming audio is broken into swarms of micro-grains that can be pitched, reversed, widened, scattered, synchronized, softened, distorted, and animated in real time. Insert it on a track, blend dry and wet, send multiple sounds into it, or perform it like an instrument. From delicate halos to chaotic scatter, Celestine is built to feel organic, musical, and expressive. Eight granular engines: Grain: classic granular textures Mosaic: pitch-shifted harmonic clusters Glide: bending, sliding grains Reverie: dreamy reverse washes Bloom: ghost-echo reflections Tide: amplitude wave undulations Stars: rhythmic anchor patterns Orbit: circular spatial movement Shape time, pitch, density, motion, tone, and space. Scrub through the live buffer by hand, or lock grain triggering to the host tempo for evolving patterns and rhythmic clouds. Built-in effects: Wavefolding distortion for rich harmonic color Bitcrush for subtle grit or digital destruction Lush reverb for spacious depth Magic multi-FX with seven tone-shaping algorithms Dry/wet blending for subtle enhancement or full transformation Celestine turns melodies into glowing pads, vocals into spectral choirs, guitars into frozen halos, drums into glittering glitches, and simple loops into evolving celestial motion. Ideal for ambient, cinematic, IDM, and sound design. Under the hood: Real-time live-buffer granular processing 8 distinct granular engines Up to 30 simultaneous grain voices Tempo-synced, bar-locked grain triggering Pitch, reverse, width, scatter, motion, and timing controls Wavefold, bitcrush, reverb, and Magic multi-FX Smooth, click-free DSP Celestine is an AUv3 audio effect and requires an AUv3-compatible host app. Made by ijo audio.
Screenshots
Verdict
The clearest difference is price: Know the Notes at $1.99 against Celestine Granular FX's $9.99. Know the Notes also leads on iOS requirement (15.1 vs 17.0). Celestine Granular FX's advantage is update cadence (every 2 days vs fortnightly). On ads, in-app purchases 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
Know the Notes costs $1.99 and Celestine Granular FX $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Know the Notes ships an update fortnightly, Celestine Granular FX every 2 days. Both last shipped on October 25, 2026.
| Parameter | Know the Notes | Celestine Granular FX |
|---|---|---|
| Price | $1.99 — better | $9.99 |
| Rating | — | 5.0 (11 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 11 — better |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 26 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | DAVID MAYR LERNER | ian johnston |
In-app purchases
Know the Notes
No in-app purchases
Celestine Granular FX
No in-app purchases
Questions
Is Know the Notes free?
Is Celestine Granular FX free?
Do Know the Notes or Celestine Granular FX have ads?
Which is updated more often, Know the Notes or Celestine Granular FX?
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