Woodulator vs Gradatone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Woodulator
This app offers advanced audio manipulation with analog-inspired delay and pitch shifting. It features versatile modulators, customizable filters, and extensive MIDI control for creative sound design. Presets can be saved and synced across devices via iCloud.
- Analog bucket brigade delay emulation
- Dual pitch shifters (up/down, harmonic, chorus)
- Versatile internal/external sidechain modulators
- Customizable delay line color and filters
- BPM sync and MIDI control
- Stereo width enhancement
- iCloud preset storage
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The Woodulator is a delay and pitch shifter inspired by analog bucket brigade delays. It also includes 2 versatile modulators. Pitch shifting is obtained by increasing or decreasing the clock in the delay line and not by FFT calculations. - Has 2 pitch shifters which can go up or down according to a harmonic scale or in chorus mode - Modulator source can be internal LFO or external side chain - Modulator destination can be pitch frequency, pitch amplitude, delay amplitude, panning, feedback amounts or Moog filter frequencies. - Modulation of pitch frequency can be up, down or both. - Delay line color can be set with LP/HP/BP/Moog filter and Saturation level. - Includes HP and LP filters on the input signal - Includes Moog filter on pitch out signals. - Pitch shifters have Reverse mode. - BPM can be set, tapped or synced by the DAW host. - LFO Square has slew-rate control. (control at 100% generates triangle waveform) - LFO’s have convenient beat/bar timing popup. - Delay and pitch signals can be panned L-R on a stereo bus/track. - Delay and pitch shifter timing can be synced to the bar or re-synced manually (playing live) - Stereo diff mode can create wide stereo from mono sources. - Presets can be stored in iCloud Drive (makes them available on all your devices). - Presets can be switched with Midi Program Changes. - Major controls can be set with Midi CC messages.
Gradatone
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Gradatone is a seamless pitch instrument: swipe the screen and hear pitch move smoothly—named for the gradient of sound. Play with nuance keyboards cannot easily offer—vocal-like vibrato and string-like glissandos. Layer timbres for rich harmony, or turn on Snap to pull pitch gently toward a scale. Choose from major, minor, Okinawan and Miyako modes, Chinese pentatonic, Indian (raga), Arabic, blues, and more. Labels include English, kana, and Indian note names (Sa/Pa). No account, ads, in-app purchases, or tracking. Settings stay on your device only. On iOS, you can play even when the Ring/Silent switch is on (use the device volume buttons).
Screenshots
Verdict
The clearest difference is price: Gradatone at Free against Woodulator's $10.99. Woodulator's advantage is iOS requirement (9.3 vs 15.0). On update cadence, 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
Gradatone is free to download; Woodulator costs $10.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Woodulator ships an update every 4 months, Gradatone every 5 months. The most recent releases landed on October 6, 2026 and October 28, 2026 respectively.
| Parameter | Woodulator | Gradatone |
|---|---|---|
| Price | $10.99 | Free — better |
| Rating | 5.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 4 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 17 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Woodman's Immaculate Maple Syrup Studio | TOMIHIDE OTA |
In-app purchases
Woodulator
No in-app purchases
Gradatone
No in-app purchases
Questions
Is Woodulator free?
Is Gradatone free?
Do Woodulator or Gradatone have ads?
Which is updated more often, Woodulator or Gradatone?
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