Geography vs Grainfold
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Geography
This app transforms sound into an interactive landscape. Explore a sonic world from Earth's core to space, where each sound grain behaves like a particle. Customize gravity, string materials, and weather patterns to create unique sonic experiences.
- Interactive sound landscape visualization
- Adjustable gravity and string materials
- On-screen keyboard and ribbon controller
- MIDI input and control
- Layered strata with unique weather effects
- Sequencer, arpeggiator, and built-in effects
- Real-time weather integration from Earth's map
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Geography turns a sound into a landscape. The sample is drawn as a cross-section of the Earth, from the burning core to outer space, and every grain of sound is a particle with weight that falls, bounces and sounds according to the layer it crosses. PLAY THE MATTER • Tap the terrain to drop grains, draw strings that ring when they're hit, and tilt your iPad or iPhone to change gravity. • Eight string materials: metal, wood, glass, skin, gut, bronze, bamboo and stone. • An on-screen keyboard of up to five octaves, or a continuous ribbon for gliding pitch. • MIDI: play from your keyboard and map its knobs to the app's with MIDI learn (endless encoders too, like the Akai MPK mini's). Program Change switches sounds. A WORLD WITH A LIFE OF ITS OWN • Six strata, each with its own weather: fire in the core, earthquakes in the geosphere, plants that bloom and release tuned spores, swell and bubbles in the water, wind in the atmosphere, satellites and comets in space. • Rituals: a sequencer of world events. The Moon, in its real phase, and the planets sing too. • Life: the instrument improvises, arpeggiates or mutates the sequence on its own. SEE IT IN 3D • Flat, Ridges, Living ridges, Surface, Point cloud, Planet and Sphere: seven ways to look at the same sound, with aurora, clouds and a free camera. THE LAB • Envelope, filter, two LFOs, echo, reverb, modulation (flanger, phaser, ensemble), scales and a 16-step sequencer/arpeggiator. • A mixer with one channel per sound source in the world, and a Space tab to place each source around your head, with scenes that morph on their own. THE REAL EARTH • Pick a place on the map and its live weather flows into the sound. Earthquakes from the last 24 hours shake the landscape. SAMPLER AND PRESETS • Sampler: record with the microphone or open a file, then trim, normalize, reverse and add fades. Up to 45 seconds, which become a landscape; it exports WAV too. • Save your sound under a name, with its settings and rituals, and export it as a file to move it between devices or share it. ON IPHONE AND IPHONE DUO • On iPhone, the world in full screen and a hidden dock with the essentials: play, draw, gyroscope, Life and the Ribbon. In landscape, Rituals, Earth, the Lab and the Mixer take the whole screen, and two fingers move, zoom and rotate the view. • Made for iPhone Duo too: closed, it is the world with the essentials, to play with one hand; open, the same world, bigger, with a keyboard in the dock and the panels in the middle of the screen. FOR YOUR STUDIO • Audio Unit (AUv3) for Logic Pro, GarageBand, AUM and more: every setting can be automated and is saved with your project. Stereo output, binaural spatial audio with head tracking, or 7.1.4, plus separate stems by source or by stratum. • Thirteen synthesized factory landscapes. You can also open your own sounds, or an image, which you hear as a landscape. Try it free (5 minutes per session). A one-time purchase unlocks everything on iPhone, iPad and Mac. No subscription. No accounts, no ads, no data collected.
Grainfold
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Grainfold is a granular synth that turns any sound into an instrument. Record your voice, a glass or the street outside, or import a file, and shape it into loops, playable chords, melodies and evolving clouds of grains. A GRANULAR SYNTH YOU CAN PLAY Granular synthesis cuts a sound into tiny grains and plays them back in new ways. Grainfold makes it hands-on: set how long each grain lasts, how often grains spawn, where they come from and how far they scatter. Reverse them, spread them across the stereo field, give them a shape from smooth to plucked, and play them from the keyboard, MIDI or your fingertips. FOUR REGIONS, LOOP OR GRAIN Mark up to four parts of a sound, each with its own mode, pitch, envelopes, filter and modulation. LOOP repeats a region with fades and crossfade; GRAIN turns it into textures, pulses and harmonies. MELODIES WITHOUT A KEYBOARD The step sequencer plays sixteen steps of any scale in time with the tempo. Or let every grain choose its note: random notes of a scale, a wandering line, a melody that comes home to the key, or a slowly evolving motif. SHAKE TO PLAY In SHAKE mode, balls bounce around the sound as you shake and tip your phone, like a pong ball off the edges of the screen, and the grains follow them. HARDWARE LOOK, CRT SCREEN A silver metal body that catches the light as you tilt your phone, solid keys, big knobs and a waveform on a glowing CRT screen, with bloom and scanlines. Each grain is a spark, as big as it is long. A small spectrogram, an oscilloscope and a 3D spectrogram show what you hear. LOCKED TO THE BEAT Type or tap a BPM. Spawn grains on the beat, set their length, the scan, the LFOs and the delay in note values, and see where every beat falls. A metronome keeps time in any meter. In an Audio Unit host, Grainfold follows the host tempo. MOVEMENT AND EFFECTS Two LFOs per region, ADSR envelopes for notes and the filter, PITCH that keeps timing, SPEED that keeps pitch. Filters, harmonic LAYERS, drive, chorus, DIFFUSE, delay and reverb. PLAY WITH TOUCH OR MIDI In PERFORM, each finger plays a region and moves two parameters; LATCH holds sounds and MOTION loops your gestures. Chords of up to twelve notes from the on-screen keyboard or MIDI, with velocity, sustain, pitch bend and MIDI Learn. RECORD, EXPORT, AUV3 Record your performance as a 32-bit float WAV straight into your DAW's folder. Play Grainfold as an AUv3 instrument in GarageBand, Logic Pro for iPad, AUM or Cubasis; Grainfold Capture records takes from any track. 40 PRESETS AND 20 STARTER PROJECTS Factory presets in seven categories, your own presets, and starter projects that each bring their own recording, root note and tempo. Share projects as .grainfold files. FREE, AND PRIVATE Every feature is free. No account, ads or tracking: Grainfold collects no data, and your recordings stay on your device.
Screenshots
Verdict
The clearest difference is in-app purchases: Grainfold at none against Geography's 1. Geography's advantage is iOS requirement (18.0 vs 26.0). On price, rating, ratings volume and update cadence 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
Both are free to download. Geography sells 1 one-off in-app purchase. Grainfold asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Geography against 5.0 for Grainfold. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Geography ships an update every 3 days, Grainfold every 5 days. The most recent releases landed on November 8, 2026 and November 13, 2026 respectively.
| Parameter | Geography | Grainfold |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 days — better | Every 5 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 8 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Luis Diaz-Faes | Marcin Sewastianowicz |
In-app purchases
Geography
- Full Geography$22.99
Grainfold
No in-app purchases









