SL Echo vs Kinetic by folina
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SL Echo
This audio effect app provides animated delay and space for musical decisions on iPad. Easily adjust time, feedback, and tone for various repeat styles, while maintaining a clear dry signal with stereo width and ducking. It supports AUv3 integration with popular music hosts.
- Animated delay and space effects
- Adjustable time and feedback
- Tone shaping controls
- Stereo width and ducking
- AUv3 support
- Standalone preview mode
- Factory and user presets
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SL Echo is a focused AUv3 delay effect designed for fast musical decisions on iPad. Move from a close vocal pocket to wide, evolving repeats without navigating complex pages. • Time and feedback for slapback or long trails • Tone shaping for darker or brighter repeats • Stereo width and ducking for a clear dry signal • Factory presets and local user presets • AUv3 support for compatible iPad music hosts Works as a standalone preview app and as an AUv3 effect in GarageBand, AUM, Cubasis, BeatMaker 3 and other compatible hosts.
Kinetic by folina
This app creates dynamic, evolving audio performances by generating continuous movement in filters, stereo position, and tonal balance. It offers six unique movement engines and intuitive controls to make sounds feel alive without obvious modulation.
- Generates evolving audio movement
- Six unique movement engines
- Organic modulation without repetition
- Stereo and spatial animation
- Dynamic tonal evolution
- Intuitive character-first interface
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Kinetic transforms static sounds into living performances. Instead of relying on a single LFO or repeating modulation pattern, Kinetic continuously generates evolving movement throughout your audio. Filters drift, stereo position breathes, tonal balance shifts, spatial depth changes, and countless subtle interactions combine to create the feeling that your sound is alive. The result isn't obvious modulation. It's motion. Every control shapes a different aspect of that movement: • Motion determines the overall amount of animation. • Drift adds slow organic evolution that never repeats exactly. • Width expands movement across the stereo field. • Flow changes the speed and energy of internal motion. • Character selects one of six unique movement engines, each with its own personality. • Mix blends your original signal with the animated result. Choose from six Character modes: • Tide — Slow, relaxed, ocean-like movement. • Orbit — Rhythmic circular motion with electronic energy. • Current — Constant forward momentum. • Swarm — Dense competing layers of animated movement. • Ghost — Ethereal textures that appear and disappear. • Voodoo — Funky, asymmetrical motion with unpredictable attitude. Perfect for pads, guitars, synths, vocals, drums, ambience, and creative sound design. Features • Motion-focused audio processor • Six unique movement engines • Organic evolving modulation without repetitive LFO cycles • Stereo animation and spatial movement • Dynamic tonal evolution • Character-first interface with six intuitive controls Movement isn't something added afterward. In Kinetic, movement is the sound. Controls Motion — Overall amount of movement Drift — Slow evolving organic variation Width — Stereo movement and spatial expansion Flow — Energy and speed of internal motion Character — Select one of six movement engines Mix — Blend dry and processed audio
Screenshots
Verdict
The clearest difference is price: Kinetic by folina at $3.99 against SL Echo's $6.99. Kinetic by folina also leads on chart position (#192 vs unranked). On rating, 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
SL Echo costs $6.99 and Kinetic by folina $3.99 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 SL Echo against 5.0 for Kinetic by folina. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
| Parameter | SL Echo | Kinetic by folina |
|---|---|---|
| Price | $6.99 | $3.99 — better |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #192 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 18 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | VIACHESLAV ZHILTSOV | Jeremy Phillips |
Customer experience
SL Echo
Kinetic by folina
In-app purchases
SL Echo
No in-app purchases
Kinetic by folina
No in-app purchases









