sqsl Latch vs BLEASS Arpeggiator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
sqsl Latch
This app is a conceptual MIDI controller and sequencer for creating drone, textural, and soundscape synthesizer patches. It allows for sending MIDI notes, pitch bend, and CC values with advanced looping and parameter modulation features. Save and recall your setups for later use.
- MIDI note, pitch bend, and CC output
- 16 groups with assignable MIDI channel and color
- 8 assignable Continuous Controllers per group
- Looper for recording and shuffling note phrases
- Adjustable phrase playback speed and synchronization
- Parameter modulation via internal randomizer
- Smooth parameter transitions with LAG control
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sqsl Latch is a conceptual MIDI controller and sequencer designed for working with evolving drone, textural or soundscape synthesizer patches. It can send out MIDI notes, pitch bend and CC values. There are 16 groups split into 2 banks (a, b, c, … p). Groups have assignable MIDI channel, color and 8 Continuous Controllers (CC). When user touches one of the pads, note is activated and is held on until new touch (on the same pad) is registered. Left slider controls the velocity of note to be activated. Every group has a looper able to record note state changes - phrases. Order and velocity of recorded notes is automatically shuffled after phrase restarts (can be optionally prevented by activating group’s LOCK button). Phrase playback speed is adjustable (CLOCK and DIVIDER parameters). Phrase can be synchronised - set to restart automatically with previous group's loop. Synchronisation can be set to happen on every pass, every second, third... up to 16th and can be set to be ignored randomly (probability setting 0-100%). Group parameters can be adjusted using sliders or modulated by internal randomiser with adjustable range (RANGE and RANGE 2 parameters) and speed (per group LAG control - left-most slider). Apart user definable CCs, each group has following MIDI parameters: MOD (mod wheel), BEND (pitch bend), VOL (volume), EXP (expression), PAN (pan), FOOT (foot controller), TOUCH (aftertouch/channel pressure). Group parameters related to phrase playback are: CLOCK (resolution and playback speed), SYNC with divider (loop synchronization), NOTE SKIP (randomly skipping notes events 0-100%), SYNC SKIP (randomly skipping sync events 0-100%), DIVIDE (integer group's CLOCK divider), LOOP (loop or one-shot setting), SHIFT (degree offset with selected scale). LAG can be applied to parameter changes - when new value is selected, change does not happen immediately but value is transitioned smoothly based on LAG time (left-most slider). Setup setting (CC numbers, channels, colors, and MIDI output) are saved and recalled when app is restarted. Loops, CC values, parameters and their modulation states can be written to preset positions for later recall. For detailed description visit https://www.seqsual.com/latch Important notes: - Latch does not make any sounds on its own, it generates MIDI messages (notes, pitchbend and CC values). - Latch does not synchronise to incoming external MIDI clock. - Latch was designed for full-size iPads and is not recommended for iPad Mini users.
BLEASS Arpeggiator
This app offers advanced arpeggiation capabilities for musicians, going beyond traditional patterns with polyrhythms and polyphony. Its intuitive interface encourages on-the-fly experimentation, enhanced by performance controllers, LFOs, and a motion sequencer. It also includes a built-in FM synth for sound generation or can be used with other instruments.
- Advanced arpeggiation patterns
- Polyphony and polyrhythms
- Hands-on creative interface
- XY pads and LFOs
- Motion Sequencer
- Built-in FM synth
- MIDI output for external synths
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A new and unique Arpeggiator by BLEASS & Canblaster. Use it as a MIDI FX to control any synth or as an AUv3 Instrument thanks to its built-in FM Synth! BLEASS Arpeggiator takes the inspirationally melodic power of a classic synth arpeggiator and supercharges it with modern features demanded by today’s musicians. Developed in collaboration with top French producer Canblaster, BLEASS Arpeggiator’s capabilities extend far beyond the clichéd up-and-down monophonic patterns of an old-school synth arpeggiator, with polyrhythms, polyphony, and a large collection of highly configurable arpeggio patterns built in. The focus of BLEASS Arpeggiator is creativity and experimentation. The plugin’s hands-on user interface is as intuitive and spontaneous to use as a classic subtractive synth, so varying and adapting arpeggios on-the-fly is an easy, fun and organic experience. The plugin recognises incoming performance controllers, and includes a pair of XY pads, a pair of advanced LFOs and BLEASS’ signature Motion Sequencer. These can modulate the arpeggiator’s parameters, unlocking a deep level of creativity that is simply not available from modern step-sequencer-style arpeggiators. BLEASS Arpeggiator also offers a built-in sound generator. This is a cut-down yet great-sounding FM synth that’s perfect for creating bright, sweet and punchy sounds that can work well with an arpeggio line. You can of course use BLEASS Arpeggiator with any other synth too, with each instance of the plugin creating its own MIDI source that can be routed to any instrument within your project. More information, technical specifications and tutorials available on https://www.bleass.com/arpeggiator BLEASS Arpeggiator is available as an AUv3 plugin or standalone App. BLEASS Arpeggiator is also available for Windows, and macOS.
Screenshots
Verdict
The clearest difference is rating: BLEASS Arpeggiator at 4.8 against sqsl Latch's 3.7. BLEASS Arpeggiator also leads on price ($14.99 vs $19.99) and ratings volume (54 vs 3). On update cadence, ads, in-app purchases and monetization model 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
sqsl Latch costs $19.99 and BLEASS Arpeggiator $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BLEASS Arpeggiator holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: BLEASS Arpeggiator has 54 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 67% of sqsl Latch's written reviews are positive against 75% of BLEASS Arpeggiator's.
sqsl Latch ships an update every 5 months, BLEASS Arpeggiator every 6 months. The most recent releases landed on September 26, 2026 and October 30, 2026 respectively.
| Parameter | sqsl Latch | BLEASS Arpeggiator |
|---|---|---|
| Price | $19.99 | $14.99 — better |
| Rating | 3.7 (3 ratings) | 4.8 (54 ratings) — better |
| Positive reviews | 66.7% of reviews | 75.0% of reviews — better |
| Number of ratings | 3 | 54 — better |
| Update frequency | Every 5 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.5 — better | 15.6 |
| Further details — not scored | ||
| Size | 4 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Michal Macura | BLEASS |
Customer experience
sqsl Latch
BLEASS Arpeggiator
In-app purchases
sqsl Latch
No in-app purchases
BLEASS Arpeggiator
No in-app purchases
Questions
Is sqsl Latch free?
Is BLEASS Arpeggiator free?
Which has better reviews, sqsl Latch or BLEASS Arpeggiator?
Do sqsl Latch or BLEASS Arpeggiator have ads?
Which is updated more often, sqsl Latch or BLEASS Arpeggiator?
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