LH Tuner vs Holon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LH Tuner
This app provides precise instrument tuning with accuracy up to ±0.001 semitone. It supports a wide range of acoustic and electric instruments and includes a tone generator with customizable wave types and temperaments.
- ±0.001 semitone accuracy
- Supports acoustic and electric instruments
- Adjustable A4 calibration
- Tone generator with 4 wave types
- Multiple temperament options
- Customizable keyboard
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LH Tuner is a tuner app that helps you tune instruments quickly and accurately(±0.001 semitone or ±0.1 cent).It can tune most acoustic and electric instruments, such as piano, acoustic\electric guitar, bass, strings, brass, woodwinds, tympani etc. You can set the basic frequency (note A4) from 430Hz to 450Hz. Transposition function. The Tone Generator has four wave types : sine,saw,triangle and square. Two keyboard types. Classical and Custom Keyboard. The Classical Keyboard is a piano keyboard model. On the custom keyboard,you can set the frequency to any pitch you want to generate. The Tone Generator has automatic frequency calculating system, which could work under any temperament you chose. On the fine knob ,you can tune the cent of a generating note from -50 to +50 and display 'Hz'. The “init button “ initialize any offset to zero. The knob has 3 modes: rotary horizontal and linear mode. You can set the amplitude envelope, including attack and release time. With the noiseGate, you can set threshold value and filter noise. LH Tuner is well-designed and easy to use. Features: - Precise to ±0.001 semitone or ±0.1 cent - Equal, Pythagorean and Just Intonation temperament - Cent display. Note Wheel Display - Needle meter display - Precise to 0.01Hz (Tone Generator) - Adjustable A4 (Concert A) calibration - Tone Generator range :20Hz - 20000Hz - Wave type selection. sine saw triangle square - Mic input amplitude display - Tone Generator output amplitude led display - Custom keyboard - Fine function - Volume control - Oct selector - Key number display - Keyboard type switch Shortcuts Key - Auto save change - Initialize
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™
Screenshots
Verdict
The clearest difference is rating: LH Tuner at 5.0 against Holon's 4.5. LH Tuner also leads on in-app purchases (none vs 2) and review sentiment (100% vs 75%). Holon's advantage is update cadence (every 3 months vs every 27 months) and device support (4 vs 2). On price and 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
Both are free to download. Holon sells 2 one-off in-app purchases. LH Tuner asks for nothing beyond the download.
LH Tuner holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 14 respectively. Written reviews point the same way: 100% of LH Tuner's written reviews are positive against 75% of Holon's.
LH Tuner ships an update every 27 months, Holon every 3 months. The most recent releases landed on November 3, 2026 and November 2, 2026 respectively.
| Parameter | LH Tuner | Holon |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.5 (14 ratings) |
| Positive reviews | 100.0% of reviews — better | 75.0% of reviews |
| Number of ratings | 4 | 14 — better |
| Update frequency | Every 27 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 33 MB | 144 MB |
| Age rating | 4+ | 4+ |
| Developer | 昊 刘 | Holonic Systems Oy |
Customer experience
LH Tuner
Holon
In-app purchases
LH Tuner
No in-app purchases
Holon
- Apple Watch supportFree
- Movesense SupportFree









