Comparison

SUS4 Loop Builder vs RiffAlly Loop

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

SUS4 Loop Builder

Features
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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. β€’ Up to 8 loop tracks, with level and mute per track β€’ Undo the last layer β€’ Export the mixdown as an audio file β€’ 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/

About

RiffAlly Loop

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Your playing. On repeat. Turn your own playing into a backing loop you can play along with. RiffAlly Loop brings a pedal-inspired recording workflow to your iPhoneβ€”no foot pedal required. PLAY FIRST. KEEP THE BARS YOU WANT. Choose Record & Select, set or tap your tempo, and pick a time signature. Listen to one bar of count-in, then start playing. Finish your phrase and tap Stop & select during the following bar. Loop initially selects bar 1 through the last complete bar, leaving out the unfinished final bar. If the selection is right, tap Use & Play once to start looping. Want a different section? Adjust the start and end on the pedal's waveform, preview if you like, then Use & Play. Change selection lets you revisit the original take. Made a mistake? New loop leaves an unaccepted take in one tap. When editing an accepted loop, Back to loop keeps your previous selection. OR LET LOOP STOP FOR YOU. In Fixed bars, choose 1–64 bars before you start. Loop counts you in, records the chosen length, and starts playback automatically. Quick choices include 4, 8 and 12 bars for familiar practice lengths. MAKE THE PEDAL YOURS. β€’ Set 40–240 BPM or tap your tempo. β€’ Choose 4/4, 3/4, 2/4, 6/8, 9/8 or 12/8, separately from loop length. β€’ Follow audible clicks and a prominent beat-and-bar counter. β€’ Pick from ten recording-click sounds, with a distinct count-in cue. β€’ Pause, then restart from the beginning of your loop. β€’ Adjust loop volume and personalize the pedal finish and display. β€’ Find practical instructions and troubleshooting in Help. RECORD ON IPHONE. PLAY ALONG. Count-in and recording use the built-in iPhone microphone and speaker. Recording clicks may become part of your loop. Completed loops can play through the iPhone or a selected compatible Bluetooth media speaker. Bluetooth is not used for live guidance or microphone input. Isolated headphone clicks, wired-headphone playback and AirPlay are not supported. Loop uses your chosen tempo and time signature to place bar boundaries; it does not analyze notes or correct your timing. Silence and sustained notes within the selected bars are preserved. Tap the main beats: quarter notes in /4 meters, dotted-quarter notes in compound /8 meters. Keep Loop in the foreground while practicing. Record & Select has no preset bar cap, but storage and interruptions limit recording. It retains the current finalized original and selection on your iPhone, including an undismissed draftβ€”not a multi-loop library. Fixed bars loops are session-only. Clearing or replacing a take removes its retained copy. There is no export, overdubbing or background recording. RiffAlly does not upload your recordings. No RiffAlly account is required. Optional one-time tips support development and unlock no features.

Screenshots

SUS4 Loop Builder4 screens
RiffAlly Loop4 screens

Verdict

The call

The clearest difference is update cadence: RiffAlly Loop at every 9 days against SUS4 Loop Builder's every 4 weeks. SUS4 Loop Builder's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. SUS4 Loop Builder sells 3 in-app purchases, starting at $0.99 per month and RiffAlly Loop sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SUS4 Loop Builder ships an update every 4 weeks, RiffAlly Loop every 9 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard2 real differences Β· 4 level
SUS4 Loop Builder versus RiffAlly Loop: the parameters behind the verdict, then further details
ParameterSUS4 Loop BuilderRiffAlly Loop
PriceFreeFree
Update frequencyEvery 4 weeksEvery 9 days β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, Mac β€” betteriPhone
Requires iOS16.0 β€” better17.0
Further details β€” not scored
Size27 MB3 MB
Age rating4+4+
DeveloperThePaulSmithFernando Lanner Cardoso

In-app purchases

3 purchases

SUS4 Loop Builder

Subscriptions2
  • SUS4 Loop Builder Pro Monthly7 Days trial$0.991 Month
  • SUS4 All-Access7 Days trial$4.991 Month
One-time1
  • SUS4 Loop Builder Lifetime$59.99
3 purchases

RiffAlly Loop

One-time3
  • Small tip$1.99
  • Supporter tip$4.99
  • Generous tip$9.99

Questions

Is SUS4 Loop Builder free?
SUS4 Loop Builder is free to download, with in-app purchases available.
Is RiffAlly Loop free?
RiffAlly Loop is free to download, with in-app purchases available.
Do SUS4 Loop Builder or RiffAlly Loop have ads?
Neither SUS4 Loop Builder nor RiffAlly Loop shows ads.
Which is updated more often, SUS4 Loop Builder or RiffAlly Loop?
SUS4 Loop Builder ships an update every 4 weeks, and RiffAlly Loop every 9 days. Most recently, SUS4 Loop Builder was updated on October 25, 2026 and RiffAlly Loop on October 31, 2026.

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