PET Bottling vs WretchUp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PET Bottling
This app simulates playing a PET bottle as a percussion instrument, offering a vast array of unique sounds. Beginners can explore various tapping techniques, while professionals can use it for live performances or studio recordings. It includes recording and export functions for integrating your creations into other music projects.
- Simulates PET bottle percussion
- 624 unique recorded sounds
- Multiple tapping techniques and modes
- Adjustable tapping locations
- Special effect sounds
- Recording and export functionality
- Avoids auto-sleep
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PET Bottling is a real percussion instrument using the PET bottle. You can play an acoustic instrument as like real PET bottle. And you can play 624 each sounds recorded from only one PET bottle. If you are professional, you can play on live performance stage or use at recording studio. If you are beginner, you are amazed to hear various sounds by tapping! If you use some techniques, you can show a unique performance that goes beyond the real bottle. And you can keep your sound forever by recording function. Also you can use music you have played on PET Bottling for your song. Please check 1minute Introduction movie. https://youtu.be/XPMrgQg02mY Water in the bottle or not. Only tap or tap & stay(mute). About these each MODE, you can select Tapping Object - tapping by Hand, tapping by Nail, attacking on Wood, attacking on Plastic, attacking on Metal. And about these all, Sounds are changed by tapping place on screen... Cap, Upper, Middle, Lower, Bottom. And if you tap upper place on screen, you can play big tapping tone. And more you can play following option sounds. Falling cap sound, mute noise by hand, soda bubble noise, opening or closing cap sound, pinch the bottle, knocking up or down sound, rubbing up or down sound. If you select Water MODE and tilt left, right, upper or lower, you can play various water noise. If PET Bottling is frontmost app, you can avoid auto sleep. It's very useful for playing only a part of long music. All sounds are quickly played and you can watch feedback image on the screen so you can feel real playing. I believe all people fun playing this real instrument! And recording function is very easy. Just tap ” i ” button to show. Tap Red button to record and tap Blue button to play. PET Bottling doesn’t mute background app’s sound from the beginning. Therefore, you can record while listening to the song you are making. You can pass the wav file you recorded to your favorite storage or app with Export button. Importing your performance to music production app. Passing it to someone. A generic wav file will never be lost in the future. Just you have to avoid tapping ” i ” button when playing. Really you can focus on your performance. Are you ready? Let’s play wonderful music! - Feature - • Super high quality recorded & edited 24-bit sounds. • Modern 32-bit float Sound Engine. • 624 various & rich tones. • Very quickly response for playing as real percussion. • Visible feedback for feeling of tapping. • Institutive & smooth user interface. • Avoid auto sleep even if you don't touch. • Don’t stop background app’s sound. • Excellent recording function that is simple and does not disturb your play.
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.
Screenshots
Verdict
The clearest difference is update cadence: WretchUp at every 3 weeks against PET Bottling's every 7 months. WretchUp also leads on iOS requirement (11.0 vs 18.1). PET Bottling's advantage is review sentiment (100% vs 91%) and price ($2.99 vs $4.99). On ads, in-app purchases, monetization model 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
PET Bottling costs $2.99 and WretchUp $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PET Bottling ships an update every 7 months, WretchUp every 3 weeks. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.
| Parameter | PET Bottling | WretchUp |
|---|---|---|
| Price | $2.99 — better | $4.99 |
| Rating | — | 3.1 (9 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 90.9% of reviews |
| Number of ratings | — | 9 — better |
| Update frequency | Every 7 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.1 | 11.0 — better |
| Further details — not scored | ||
| Size | 73 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Hidenori Matsuoka | MoMinstruments GbR |
Customer experience
PET Bottling
WretchUp
In-app purchases
PET Bottling
No in-app purchases
WretchUp
No in-app purchases









