Comparison

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.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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!

About

SUS4 Loop Builder

Features
Read full description

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

Pads K/014 screens
SUS4 Loop Builder4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Pads K/01 versus SUS4 Loop Builder: the parameters behind the verdict, then further details
ParameterPads K/01SUS4 Loop Builder
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS18.616.0 — better
Further details — not scored
Size220 MB28 MB
Age rating4+4+
DeveloperSerge KornewThePaulSmith

In-app purchases

None

Pads K/01

No in-app purchases

10 purchases

SUS4 Loop Builder

Subscriptions7
  • SUS4 All-Access7 Days trial$4.391 Month
  • SUS4 All-Access7 Days trial$5.991 Month
  • SUS4 All-Access7 Days trial$7.991 Month
Show 4 more
  • 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
One-time3
  • SUS4 Loop Builder Lifetime$54.99
  • SUS4 Loop Builder Lifetime$71.99
  • SUS4 Loop Builder Lifetime$103.99

Questions

Is Pads K/01 free?
Pads K/01 is free to download, with no in-app purchases.
Is SUS4 Loop Builder free?
SUS4 Loop Builder is free to download, with in-app purchases available.
Do Pads K/01 or SUS4 Loop Builder have ads?
Neither Pads K/01 nor SUS4 Loop Builder shows ads.
Which is updated more often, Pads K/01 or SUS4 Loop Builder?
Pads K/01 ships an update every 2 days, and SUS4 Loop Builder every 3 weeks. Most recently, Pads K/01 was updated on October 30, 2026 and SUS4 Loop Builder on November 9, 2026.

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