Soundmondo vs SUS4 Loop Builder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Soundmondo
This app is a social network for sharing synthesizer sounds. It provides access to a vast library of sounds and allows users to organize, share, and discover sounds from music creators worldwide. Connect your compatible Yamaha synthesizer to explore and share your creations.
- Social sharing network for synthesizer sounds
- Access to over 50,000 Yamaha synthesizer sounds
- Organize sounds into Set Lists
- Built-in audition function for connected synthesizers
- Custom QR code generator/scanner for sound sharing
- Compatible with various Yamaha synthesizer models
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"Soundmondo is a social sharing network for Yamaha synthesizer* sounds. You can save and share the sound of Yamaha synthesizers with music creators all over the world. The Soundmondo iOS app gives you direct access to over 50,000 Yamaha synthesizer sounds. Set Lists organize your Sounds into groups whether you're getting ready for a gig or categorizing your Sound library. Users of reface series, CP88/73 and YC61 can utilize built-in audition function to playback preset phrases on your connected synthesizers and keyboards, and also share sounds with friends using the built-in custom QR code generator/scanner. * Compatible models: reface CP/YC/DX/CS, Montage 8/7/6, MODX 8/7/6, CP88/73, and YC61 CP/YC/DX/CS, CP88/73 and YC61 require one of following items for connection to an iOS device. Lightning to USB Camera Adaptor Lightning to USB 3 Camera Adaptor USB-C Digital AV Multiport Adaptor USB-C VGA Multiport Adaptor Yamaha Wireless MIDI Adaptor 「MD-BT01」/「UD-BT01」 MONTAGE 8/7/6 and MODX 8/7/6 require one of following items for connection to an iOS device. Lightning to USB Camera Adaptor Lightning to USB 3 Camera Adaptor USB-C Digital AV Multiport Adaptor USB-C VGA Multiport Adaptor ＊For users using App version v2.3.1 or earlier. When updating to the version v2.10.1 or later, data stored within the app will not be retained. To avoid losing your data, please make sure to upload it to the server before updating. (You can check your current app version in the app’s settings screen.)
SUS4 Loop Builder
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Record a part, loop it, and stack the next one on top. Up to eight tracks, each with a level control, so the idea sounds like a song before you leave the room. Fully on-device: no cloud, no account. Start with a chord loop, add a bass line, then a melody. Undo the last layer if it was wrong. When it works, export the mixdown as an audio file. • Up to 8 loop tracks, with level and mute per track • Undo the last layer • Export the mixdown as an audio file • A library of saved loop sessions For guitarists and singers building song ideas, beatboxers, and anyone who uses a loop pedal on stage and wants one in their pocket. Pro, or SUS4 All-Access across the whole range, adds reverb, delay and 3-band EQ on each layer, stem export (every track as a separate file) and unlimited saved loops. Made in the UK by working musicians. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Soundmondo at none against SUS4 Loop Builder's 3. SUS4 Loop Builder's advantage is update cadence (every 4 weeks vs every 3 months) and iOS requirement (16.0 vs 18.0). On price, 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
Both are free to download. SUS4 Loop Builder sells 3 in-app purchases, starting at $0.99 per month. Soundmondo asks for nothing beyond the download.
Soundmondo ships an update every 3 months, SUS4 Loop Builder every 4 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Soundmondo | SUS4 Loop Builder |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (47 ratings) — better | — |
| Positive reviews | 31.0% of reviews | — |
| Number of ratings | 47 — better | — |
| Update frequency | Every 3 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Yamaha Corporation of America | ThePaulSmith |
In-app purchases
Soundmondo
No in-app purchases
SUS4 Loop Builder
- SUS4 Loop Builder Pro Monthly7 Days trial$0.991 Month
- SUS4 All-Access7 Days trial$4.991 Month
- SUS4 Loop Builder Lifetime$59.99
Questions
Is Soundmondo free?
Is SUS4 Loop Builder free?
Do Soundmondo or SUS4 Loop Builder have ads?
Which is updated more often, Soundmondo or SUS4 Loop Builder?
Other comparisons
