sqrt vs skippodisk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
sqrt
This app allows users to trigger and manipulate sounds on a multitouch surface. The pro version enables loading custom audio files and creating personalized sound grids. It offers a unique playback control system where sound parameters are interpolated across the screen.
- Multitouch sound triggering
- Drag-to-manipulate sound parameters
- Load custom sounds (Pro version)
- Create custom sound grids (Pro version)
- Interpolate between parameter presets
- Includes curated glitch sounds
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SQRT is a multitouch sound board sample player. Tap on the items to trigger different sounds. Drag a triggered sound around the surface to change its parameters. Use the two buttons on the side to change the way how you can play / trigger the sounds. With the pro version you can load in your own sounds (using iTunes or AudioShare) and create your own grids! SQRT comes with a specially designed set of (glitch) sounds by composer/sound designer Ctrl-t (aka Jan T.) and are an incarnation of one of his recent (live) pieces. If you want to use your own sounds, get the pro version! What is special about SQRT? The sounds can be triggered from one point on the screen but the playback behavior can be manipulated over the entire screen. For each 'trigger point' there are snapshots of parameter settings spread across the playing area. The playback behavior is changed by interpolating between these presets. Currently the presets define pitch, loop start and loop length.
skippodisk
This music app simulates the sound of a compact disc skipping and glitching. It offers a 2D slider for controlling delay time and feedback, with options for automatic skipping and silence dropouts to create unique audio effects.
- Simulates CD skipping and glitching
- 2D slider for delay time and feedback
- Automatic CD skipping
- Silence dropout effect
- Comb filtering effect
- Bypass and volume controls
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skippodisk is a free AUv3 plugin and standalone app. It features algorithm that imitates compact disc reading errors and adds feedback for some comb filtering. controls: * main control is a 2-dimensional slider that changes delay time / buffer size using value on X axis and feedback (positive and negative, -0.997 to 0.997) on Y axis. This control adds some creative comb-like effect. * algorithm settings: [ auto ] enables automatic cd skipping. [ dropout ] enables adding silence. Use both [auto] and [dropout] with zero feedback value (in the centre of touch control) to achieve the effect of a CD audio glitch * [ bypass ] control and volume control. This slider is in low value state by default.
Screenshots
Verdict
The clearest difference is rating: skippodisk at 4.9 against sqrt's 3.3. skippodisk also leads on monetization model (free vs free with in-app purchases) and review sentiment (80% vs 58%). sqrt's advantage is iOS requirement (8.4 vs 15.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
skippodisk holds the better App Store score, 4.9 against 3.3. Both are backed by a comparable volume of ratings — 7 and 11 respectively. Written reviews point the same way: 58% of sqrt's written reviews are positive against 80% of skippodisk's.
sqrt ships an update every 5 weeks, skippodisk every 2 weeks. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.
| Parameter | sqrt | skippodisk |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (7 ratings) | 4.9 (11 ratings) — better |
| Positive reviews | 57.9% of reviews | 80.0% of reviews — better |
| Number of ratings | 7 | 11 — better |
| Update frequency | Every 5 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 14 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | TeaTracks | Alexey Nadzharov |
Customer experience
sqrt
skippodisk
In-app purchases
sqrt
No in-app purchases
skippodisk
No in-app purchases








