TinyTone vs K.O. II
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TinyTone
Create professional synth patches for music production and live performance. Design sounds in real-time with a powerful synthesizer engine, dual oscillators, and extensive modulation options. Export and import patches, and use it as an AUv3 plugin in DAWs.
- Powerful synthesizer engine
- Dual oscillators with FM synthesis
- Real-time audition with touch pads
- External MIDI keyboard support
- Unlimited user patch storage
- AUv3 Audio Unit support
- JSON export/import for patches
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TinyTone is a full-featured synthesizer sound source for iPhone sound design, stage performance, and recording. Using the on-screen controllers and a MIDI keyboard, you can design and monitor professional synth patches in real time. In addition to standalone app use, ToneEditor can also be loaded as an AUv3 Audio Unit into DAWs such as GarageBand and used as a sound source. It also works as a sound editor for its sister app, TinyTone, allowing you to reproduce consistent sounds with the same sound engine. <Features> ・Powerful Synthesizer Engine Equipped with dual oscillators, envelopes, filters, modulation, delay, limiter, and more. Enables complex sound design. Dual Oscillators with FM Synthesis, switch between Mix and Chain modes for rich tonal possibilities. ・Real-Time Audition Play single notes, chords, and transposition using touch pads. Hear sound changes instantly as you adjust sliders. External input via MIDI keyboard is also supported. ・Preset Management Unlimited user patch storage. ・JSON Export / Import Export patches as JSON. Share via Files app or clipboard. ・AUv3 Support Can be embedded as an AU instrument in DAWs like GarageBand. Reproduces consistent sounds with the same synthesis engine. <How to Use> 【Standalone】 1. Select a preset or start creating from a new patch. 2. Play sounds using the test pad at the bottom of the screen; adjust parameters with sliders to confirm real-time sound changes. 3. Save your created patch to a user slot. 【Using with DAWs (GarageBand, etc.)】 1. Add TinyTone (AU) to a track. 2. Select a factory preset or saved patch from the AU preset selection screen. 3. Play the DAW keyboard to output sound. <Important> ・When using simultaneously with camera or audio apps, noise may occur depending on your environment. Please be careful with output volume. ・Listening to loud audio for extended periods can affect your hearing. When using headphones or speakers, always check your surroundings and volume level. ・Some DAWs (e.g. Ableton Live 11) may not detect iOS-app AUv3 plug-ins. Logic Pro, MainStage, and GarageBand are recommended. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://flicker-jp.com/privacy
K.O. II
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K.O. II is a compact native beat-making instrument for iPhone and iPad. Tap responsive pads, switch between drum, percussion, bass, and key banks, build 16-step patterns, and explore 38 included demo grooves. Designed as a focused standalone music surface, K.O. II gives you a hardware-inspired workflow for quick ideas, rhythm practice, and portable sound experiments.
Screenshots
Verdict
TinyTone and K.O. II are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | TinyTone | K.O. II |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | KEISUKE TONE | 海洋 符 |
In-app purchases
TinyTone
No in-app purchases
K.O. II
No in-app purchases





