WretchUp vs Vatanator SX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WretchUp
This app offers a unique audio manipulation experience, allowing users to create sonic mayhem with pitch-shifted delays, filters, and sampling. It's designed for live performance and studio use, enabling musicians and sound enthusiasts to generate wild noises and unique effects.
- Pitch-shifted delay with feedback and filter
- Live performance-oriented controls
- Gesture-based play
- Record vocals and instruments
- Sample and manipulate loops
- Inter-App-Audio and Audiobus support
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An effect instrument anyone can play - sonic anarchy in the palm of your hand. iOS Mars: "Barely controlled chaos“, "sonic extremes“, "well suited for live use“ Music App Blog: "if you like the occasional dose of sonic mayhem, then this is an app that will let you make it" WretchUp is the sonic instrument from the imagination of Mouse on Mars Instruments. Used by the duo in their live performances, it's a playable effect inspired by analog hardware. Sing into it, speak into it, plug in an instrument, sample sounds, and then make sonic mayhem. It's been tested in Mouse on Mars' live shows and used in studio albums. But now it's available to anyone - whether you're a musician wanting to create unique sounds or you just want to make some wild noises and frighten friends and enemies. // FEATURES - Pitch-shifted delay with feedback and filter - Unique controls, designed to be used in live performance and tested onstage - Play with gestures, even without looking closely at the screen - Record vocals or instruments from the built-in mic or another input - Sample loops and change their speed - Adjust the feedback loop, pitch, and filter for unique sounds - Make inputs by holding down your finger, or lock input for continuous sampling - Inter-App-Audio supported - Audiobus supported www.mouseonmars.com/mominstruments Features artwork by Rupert Smyth. Pure Data-based, open source patch created by Florian Grote and Peter Kirn with Mouse on Mars. App design by Oliver Greschke. Powered by free and open source software libpd. Note: like all mic-based effects, you need to enable microphone input. If you accidentally did not allow mic input, you can allow later via: Device settings, WretchUp, Data settings, Microphone, allow mic input.
Vatanator SX
Create rhythms instantly with this drum machine app. It offers advanced MIDI features, 140 vintage hardware emulations, and real-time effects. Import your own samples and arrange songs for a complete music production experience.
- 140 vintage hardware emulations
- Advanced MIDI functionality
- Real-time effects with XY pad
- Import samples via multiple sources
- Song arranger and pattern export
- 16/32 step sequencer
- Background audio support
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Vatanator SX is a unique drum machine with advanced MIDI functionality. It features 140 built-in presets emulating every classic vintage hardware. It is aimed for simplicity and instant rhythm creation. Vatanator SX features: – Audio Unit Extension – Record patterns in real-time with quantization, MIDI assignable – 16/32 steps sequencer with advanced MIDI options – Fast loading of presets on the fly – Full MIDI implementation, Bluetooth MIDI – Background audio – Audiobus, Audiobus Remote, Inter-App Audio and Ableton Link support – Ability to import samples via Files, AudioShare, AudioCopy, Dropbox or iTunes Share – Real-time effects with XY pad, tempo synchronization, MIDI assignable and automation – Song arranger, ability to store a sequence of patterns and play them in order - Export pattern to MIDI file – 8 channel mixer with volume control and mute/solo for any individual instrument
Screenshots
Verdict
The clearest difference is rating: Vatanator SX at 4.4 against WretchUp's 3.1. WretchUp's advantage is review sentiment (91% vs 75%) and price ($4.99 vs $5.99). On ratings volume, update cadence, ads and in-app purchases 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
WretchUp costs $4.99 and Vatanator SX $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Vatanator SX holds the better App Store score, 4.4 against 3.1. Both are backed by a comparable volume of ratings — 9 and 8 respectively. Written reviews complicate that: 91% of WretchUp's written reviews are positive against 75% of Vatanator SX's, so the app with the better star average is not the one people write more warmly about.
WretchUp ships an update every 3 weeks, Vatanator SX every 5 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | WretchUp | Vatanator SX |
|---|---|---|
| Price | $4.99 — better | $5.99 |
| Rating | 3.1 (9 ratings) | 4.4 (8 ratings) — better |
| Positive reviews | 90.9% of reviews — better | 75.0% of reviews |
| Number of ratings | 9 — better | 8 |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 15 MB | 264 MB |
| Age rating | 4+ | 4+ |
| Developer | MoMinstruments GbR | BACKPULLVER SOFTWARE LTD OOD |
Customer experience
WretchUp
Vatanator SX
In-app purchases
WretchUp
No in-app purchases
Vatanator SX
No in-app purchases









