Holon vs The Phil
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Holon
This app transforms your movement through cities into a dynamic, real-time musical score. It uses your physical location and activity to generate interactive synth music, encouraging outdoor exploration and turning listeners into performers.
- Human-powered music generation
- Encourages outdoor activity
- Zero UI for minimal distraction
- Environmentally responsive music
- Real-time synth music creation
- Optional AirPods and Apple Watch integration
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Holon makes the city your instrument. It turns your movement in the environment into a synthetic, interactive score that reflects your context, supports your activities and alerts you to changes in the surrounding area. Holon uses physical computing and a geospatial dataset to synthesize music on the iPhone in real time from your data - no streaming or AI involved, just pure DSP and logic. What Holon Does: * Human powered music. Every action generates dynamic, improvised synth music in real time. * Encourages outdoor activities. Holon doesn’t work in your apartment or by shaking your phone around. Move through streets, parks, and transit systems to make the music happen. * Stays out of your way. Zero UI means less screen time, no distractions. * Uses places and spaces to modify the music you make. The environment isn’t background - it’s the score. * The more and further you move, the more things happen in the music. Use your musical agency instead of skipping and swiping. Why Holon Exists: Music has been reduced to a commodity and a background activity for consumerism. Holon isn’t here to help you chill when you swipe, scroll and buy more stuff, or improve your focus when working for the Man. Holon is here to break away from the static, one-way relationship of streaming services and to put the human in the loop - yourself. Forget emoting celebrities with their false sincerity, throw overproduced passive soundscapes and statistical algorithms on the dung heap of history. Holon turns listeners into performers and unlocks the musical potential of places. How to Use: * Go outside - Holon needs space to function, just like you. Different districts, parks, bridges, shops, street furniture - all contribute to the musical output. Strolling around your apartment or shaking your phone won’t do. * Put the phone in your pocket or on your dashboard. * Walk, run, drive - the world is now the interface, space is the machine. * Use the big button in the middle to power Holon off when not in use - Auditory AR can be a battery-intensive process! * Optional Apple AirPods support for head-controlled musical interactions! * Optional Apple Watch support for heart rate-synced music (biofeedback) *the Watch app may take a moment to install* Requirements: * Available in over 1000 regions in more than 100 countries. * Check coverage or request a new area at holonic.systems/holon. * Best experienced with headphones. Ensure adequate battery level for extended use. * A data plan is required to access our geospatial engine but use of data is low. Holon: Become part of the circuit and… Become Sound™
The Phil
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Fancy a synth that actually feels like a "traditional" instrument, but still able to push things a little weirder? The Phil is a fast, expressive AUv3 plucked string synth that brings proper physical modelling to your DAW, no faffing about required. Poke it, pluck it, let it ring out, and it responds like a real string, all wrapped up in a neat little AUv3 plugin for your DAW. Tucked inside is a built in arpeggiator, designed to create "human" feeling patterns without touching a step sequencer. Add in a solid handful of controls over decay, brightness and damping, themselves with "humanize" controls to mimic how a real hand would move on a string and you can go from delicate acoustic plucks to properly synthetic, metallic textures in no time at all whilst also having the option to turn down the robot vibe if you like. What you get: Physical modelling synthesis for genuinely plucky, stringy tones Built in arpeggiator for patterns that keep things moving Real time controls to shape decay, brightness and character Full AUv3 support, slots straight into your host Light on CPU, so it won't grind your session to a halt Plays nicely with AUM, Logic Pro, Loopy Pro, Cubasis and GarageBand Whether you're building layers in the studio or winging it live, The Phil is the sort of instrument that surprises you a little every time you touch it. In a good way. Search for decibelboy83 on YouTube for a walkthrough video. Works with: AUM, Logic Pro, Loopy Pro, Cubasis, GarageBand, and any AUv3-friendly host.
Screenshots
Verdict
The clearest difference is price: Holon at Free against The Phil's $0.99. Holon also leads on device support (4 vs 2) and iOS requirement (12.0 vs 17.6). The Phil's advantage is in-app purchases (none vs 2) and update cadence (every 4 days vs every 3 months). On ads 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
Holon is free to download; The Phil costs $0.99 up front. Holon sells 2 one-off in-app purchases. The Phil asks for nothing beyond the download.
Holon ships an update every 3 months, The Phil every 4 days. Both last shipped on October 19, 2026.
| Parameter | Holon | The Phil |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.5 (14 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 144 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Holonic Systems Oy | Philip Vincent |
In-app purchases
Holon
- Apple Watch supportFree
- Movesense SupportFree
The Phil
No in-app purchases









