Undulator vs Voice Changer With Echo Effect
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.
Voice Changer With Echo Effect
Record your voice or sing a song and apply a wide variety of fun audio effects like echo, reverb, and pitch changes. Save and share your creations, or set them as ringtones.
- Record audio with effects
- Dozens of voice effects
- Adjust room size, reverb, and delays
- Enhance voice quality
- Save and share recordings
- Set as ringtone
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Voice Changer with Echo Effects (Reverb & Delay) is a very simple application that lets you record speech and apply dozens of fun effects to it or you can sing a song & enhance your voice and share them with your friends. CUSTOM VOICE ECHO EFFECTS PRESET: * Room Size * Reverb * Delays * Pitch Time * Play Rate INCLUDES FOLLOWING EFFECTS: * Alien * Turtle * Rabbit * Devil * Darth * Shao Kahn * Jigsaw * Squirrel * Radio * Echo * Cathedral * Robot * Big Robot * Dragon * Cyborg * Sheep etc. VOICE CHANGER WITH ECHO EFFECTS FEATURES: * Record audio and apply effect on it. * Lossless quality * Enhance voice quality. * Share e-mail. * Save recording * Set as ringtone Start using Voice Changer with Echo Effects to have a laugh at your own voice.
Screenshots
Verdict
The clearest difference is review sentiment: Undulator at 86% against Voice Changer With Echo Effect's 25%. Undulator also leads on rating (4.3 vs 2.0) and in-app purchases (none vs 1). On ratings volume, update cadence, ads 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
Undulator holds the better App Store score, 4.3 against 2.0. Both are backed by a comparable volume of ratings — 12 and 7 respectively. Written reviews point the same way: 86% of Undulator's written reviews are positive against 25% of Voice Changer With Echo Effect's.
Undulator ships an update every 2 months, Voice Changer With Echo Effect every 3 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.
| Parameter | Undulator | Voice Changer With Echo Effect |
|---|---|---|
| Price | $7.99 — better | — |
| Rating | 4.3 (12 ratings) — better | 2.0 (7 ratings) |
| Positive reviews | 85.7% of reviews — better | 25.0% of reviews |
| Number of ratings | 12 — better | 7 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.1 |
| Further details — not scored | ||
| Size | 16 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Eventide | Suresh Verma |
Customer experience
Undulator
Voice Changer With Echo Effect
In-app purchases
Undulator
No in-app purchases
Voice Changer With Echo Effect
- Voice Changer with Effects$27.99
Questions
Is Undulator free?
Is Voice Changer With Echo Effect free?
Which has better reviews, Undulator or Voice Changer With Echo Effect?
Do Undulator or Voice Changer With Echo Effect have ads?
Which is updated more often, Undulator or Voice Changer With Echo Effect?
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