Undulator vs MTVP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Undulator
This app offers a classic modulated tremolo effect inspired by a renowned hardware processor. It allows musicians to add rhythmic movement, ethereal feedback, and detuned echoes to various instruments and samples, creating evolving soundscapes and dynamic textures.
- Modulated tremolo effect
- Ethereal feedback and detuned echoes
- AM/FM modulation
- Tempo sync
- Real-time ribbon control
- Multiple modulation waveforms
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Undulator is Eventide’s classic modulated tremolo effect from the iconic H3000 effects processor. This unique, rhythmic effect combines ethereal feedback and detuned echos, run through an AM / FM modulated tremolo. Whether used for manipulating samples or adding movement to strings, pads, guitars, and keys, Undulator is a muse for creative musicians. Add Undulator into your plug-ins collection for the most playable tremolo-style effect on your DAW or iOS device. Undulator excels at evolving pads, sync’d chops, and time-lapsing dreamy soundscapes. Combined with a multi-tap delay and powerful tremolo, Undulator’s controls give any sound sustain and shape. This is perfect for transforming ordinary synths, keys, guitars, and even vocals into evolving pads, tempo synced production elements, or ethereal and fluctuant delays. Simply put, Undulator can make shorter sounds into longer layered effects, and give sustaining sounds shape and rhythmic character. Use the Ribbon to morph tremolo patterns into vacillating and varying rhythmic territories. This can be effective for calling attention to synth pads and creating a state of flux or rarity which is otherwise arduous to achieve. - Turn up the MIX to increase the dry/effect ratio. - Utilize multiple modulation waveform shapes and sources to alter the rhythmic feel. - Subtly finesse detuning of delays by using SPREAD. - Add FEEDBACK to accentuate delays or create infinite loops. - The Secondary LFO determines how fast the depth and speed modulation “wiggle” their targets. - Lock the tremolo to tempo using SYNC. - RETRIG at the top of the waveform for a more predictable effect. - RIBBON lets you ‘play’ the effect in real-time and provides dynamic and fluid control to morph back and forth between the settings of your choice. - SLOW/FAST button toggles on a “Slow LFO” mode. Holding it down to “BRAKE” temporarily slows down the LFOs at a constant rate until released. - Update the tremolo speed in real time using the TAP button. - Available as an AUv3 plug-in and Standalone App.
MTVP
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MTVP is a MIDI-controlled video player with a timecode display for music composing and scoring. I had a very simple need: Use my synth/sequencer to control playback of :30/:60/:90 second social media videos on my iPhone, with a timecode display, for scoring music. Existing apps are heavy, had a ton of features I didn't want or need, and were all overkill for this simple task. I just wanted to control a video via PLAY/STOP/CONTINUE sent from my synth/sequencer, and see a timecode to understand timing. MTVP does this simply and easily, because that's all it does. Features: - Responds to MIDI system transport messages: play, stop, and continue (with SPP) - Supports MIDI CC control of start/stop/continue via custom configuration - Timecode display - Auto BPM detection from MIDI clock - Hybrid clock sync (timecode corrects to MIDI clock every beat) - Use app with a saved video or no video - Loads video files locally. Takes a bit longer to load, but no privacy concerns and works even without an internet connection. - Mute video audio - Mute toggle, On, and Off available as custom CC mapping for hardware control - Bluetooth support - Auto/Light/Dark appearances - MIDI connection selection, memory, and state detection - Connect directly via cable or use a Mac as a wireless MIDI hub - Supports Apple Shortcuts - Works on Apple Silicon Macs, too! - Works with any MIDI-compatible DAW, sequencer, or software Configuration: - Tap on the TIMECODE to configure preferences
Screenshots
Verdict
The clearest difference is price: MTVP at Free against Undulator's $7.99. Undulator's advantage is iOS requirement (11.0 vs 16.0). 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
MTVP is free to download; Undulator costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Undulator ships an update every 2 months, MTVP every 4 months. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.
| Parameter | Undulator | MTVP |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 4.3 (11 ratings) — better | — |
| Positive reviews | 85.7% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 16 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Eventide | Matthew Schultz |
In-app purchases
Undulator
No in-app purchases
MTVP
No in-app purchases









