Space Strip vs sqsl Mantra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Space Strip
This modular multi-effect plugin allows users to shape depth, movement, and spatial balance. Its six flexible modules can be arranged in any order for subtle sound enhancement, particularly effective on synthesizers and keyboards. Designed to be lightweight, it minimizes CPU load for use across multiple tracks.
- Six modular effects
- Flexible drag-and-drop routing
- Shaping depth and movement
- Spatial balance enhancement
- Lightweight CPU usage
- Ideal for synths and keyboards
Read full descriptionHide full description
Space Strip is a six-module multi-effect plugin built around simple, flexible routing. The included modules Contour, Vibe, Slapback, Ambience, Ensemble, and Stereo can be arranged in any order using drag and drop. Space Strip focuses on shaping depth, movement, and spatial balance rather than heavy effects. It works particularly well on synthesizers and keyboards, but can also be used on other sound sources where subtle space and character are needed. The plugin is designed to be lightweight and suitable for use across multiple tracks without significant CPU load.
sqsl Mantra
This experimental MIDI sequencer generates musical patterns with multiple tracks, scales, and transformation options. It allows for deep customization of triggers, pitch, and rhythm, with features for pattern evolution and saving to MIDI files.
- 3-track MIDI sequencing
- Heptatonic scales quantizer
- Scale morphing
- Pattern evolution
- MIDI file export
- Velocity modulation via LFO
- Preset saving
Read full descriptionHide full description
Experimental MIDI sequencer/pattern generator designed for iPhones. // FEATURES - 3 tracks (A, B, C) - Triggers for each track (3 × 8 triggers) - Pitch values shared across tracks (row of 8 values) - Heptatonic scales quantizer (5 scale patterns × 7 modes × 12 roots) - Scale morphing using Triadic transformations - Degree mask per track (exclusion of specific degrees from the scale) - Degree shift (degree transposition) per track - Gate length per track - Track length control for Track A and Track B (with optional reset synced to Track C) - Track C Pause control (Track C will wait 0-8 steps before looping back to start) - Clock divider per track - Random step jump per track (probability) - Clock acceleration linked to B Track's playhead position - Swing and BPM clock control - Velocity and MIDI channel (1–3) per track - Velocity can be modulated by LFO (per track) with Rate and Amount control - Pattern evolution synced to Track C loop - Evolution has selectable groups of processes/transformations - Variations generator based on current pattern and evolution settings (16 x 4 variations) - Optional automatic capture of output to .MID files (synchronized to Play button) // EVOLUTION When evolution is triggered (Track C loop), it will randomly select one of the enabled transformation groups and apply one of the transformations contained in that group. Transformation groups can also be "locked-in" so they happen each time when evolution is triggered. List of available groups and transformations within them: PITCH - The order of pitch values is reversed - Two pitch values are swapped TRIGS - Two trigger states are swapped (within a single track) - Trigger patterns of two tracks are swapped - The trigger pattern of a single track is reversed SHIFT - The degree is shifted randomly on a single track MORPH - One of the 3 triads defining currently selected scale is rotated (replaced MODE transformation from previous version) PAUSE - Empty steps are added at the end of track C (0-8) FLIP - The pitch values of single track are inverted - The pitch values of all tracks are inverted STEPS - The track length of A or B track is randomized MASK - The degree mask is shifted horizontally by one step (left or right) BPM - BPM is halved or doubled - BPM is inverted (120 BPM taken as the axis) - BPM jumps to a random value READ 1ST - First variation on current variation page is loaded (this transformation is excluded from variation generation). ACCELERATE - Acceleration parameters is randomized (speed up of clock depending on Track B playhead position) RANDOM POSITION A - Random step parameter of Track A is randomized // PRESETS There are 5 × 24 available slots for user presets. BPM and scale settings can be ignored when loading a preset. Evolution variations (64) are saved within presets. // SAVING TO MIDI FILES Output can be automatically saved to a .MID type. File will be located at the “On My iPhone/sqsl Mantra” folder and named using the current date and time. Takes start when PLAY is activated and end/save when PLAY is deactivated. File saving can be enabled (“AUTO SAVE” setting on the MIDI page) even after playback has started, since note events are always automatically captured in memory. Important notes: - Mantra does not make any sounds on its own, it generates MIDI messages (notes). - Mantra is standalone application and it can not be loaded as AUv3 in other apps/hosts. For more information visit: https://www.seqsual.com
Screenshots
Verdict
The clearest difference is iOS requirement: Space Strip at 12.0 against sqsl Mantra's 16.6. On price, rating, ratings volume 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
Space Strip costs $14.99 and sqsl Mantra $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Space Strip against 5.0 for sqsl Mantra. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
| Parameter | Space Strip | sqsl Mantra |
|---|---|---|
| Price | $14.99 | $14.99 |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | — | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 14 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | AudioThing Ltd. | Michal Macura |
Customer experience
Space Strip
sqsl Mantra
In-app purchases
Space Strip
No in-app purchases
sqsl Mantra
No in-app purchases









