Pads K/01 vs SUS4 Loop Builder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pads K/01
Transform your iPhone into a professional beat-making studio. This app offers customizable pads, advanced effects, and real-time audio playback for creating music on the go. Load your own samples and loops for unlimited creative possibilities.
- 12 customizable pads
- Loop & Shuffle modes
- Advanced effects (Fade In/Out, Pitch, Speed, Delay)
- Real-time audio engine
- Load custom samples and loops
- Pad volume, pan, and effects customization
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Transform your iPhone into a professional beat-making studio with Pads K/01 - the ultimate music creation app for producers, DJs, and musicians. * Professional Features: 12 customizable pads with full control over your sounds Loop & Shuffle modes for endless creative possibilities Advanced effects: Fade In/Out, Pitch, Speed, Delay Real-time audio engine for instant playback Multiple banks to organize your sound library Visual feedback with color-coded indicators * Complete Control: Load your own samples and loops Customize each pad's volume, pan, and effects Create complex layered beats with shuffle mode Perfect loops that never stop until you're ready Professional-grade audio quality * Why Choose Pads K/01: Zero learning curve - start creating immediately No subscriptions - one-time purchase, lifetime access Professional results - studio-quality output Portable creativity - make beats anywhere Unlimited possibilities - your sounds, your style Perfect for: Music producers and beat makers DJs and live performers Songwriters and composers Music students and educators Anyone who loves creating music Download Pads K/01 today and unleash your musical creativity. Your iPhone is now your studio!
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: Pads K/01 at none against SUS4 Loop Builder's 10. Pads K/01 also leads on update cadence (every 2 days vs every 3 weeks). SUS4 Loop Builder's advantage is device support (3 vs 1) and iOS requirement (16.0 vs 18.6). On price and ads 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 10 in-app purchases, starting at $4.39 per month. Pads K/01 asks for nothing beyond the download.
Pads K/01 ships an update every 2 days, SUS4 Loop Builder every 3 weeks. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.
| Parameter | Pads K/01 | SUS4 Loop Builder |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, Mac — better |
| Requires iOS | 18.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 220 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Serge Kornew | ThePaulSmith |
In-app purchases
Pads K/01
No in-app purchases
SUS4 Loop Builder
- SUS4 All-Access7 Days trial$4.391 Month
- SUS4 All-Access7 Days trial$5.991 Month
- SUS4 All-Access7 Days trial$7.991 Month
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- SUS4 All-Access Annual7 Days trial$19.991 Year
- SUS4 All-Access Annual7 Days trial$26.991 Year
- SUS4 All-Access Annual7 Days trial$35.991 Year
- SUS4 All-Access Annual7 Days trial$51.991 Year
- SUS4 Loop Builder Lifetime$54.99
- SUS4 Loop Builder Lifetime$71.99
- SUS4 Loop Builder Lifetime$103.99
Questions
Is Pads K/01 free?
Is SUS4 Loop Builder free?
Do Pads K/01 or SUS4 Loop Builder have ads?
Which is updated more often, Pads K/01 or SUS4 Loop Builder?
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