SL Echo vs Soren
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.
Soren
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Finish your track. Hear the difference. Keep your sound on your device. Soren brings focused automated mastering to iPhone and iPad. Import a mix or video, choose the sound you want, compare the result, and export your finished file. TRY YOUR OWN SOUND FREE Master previews of up to 30 seconds with the same mastering quality and sound choices as the full version. Choose the section you want to hear. One permanent in-app purchase unlocks full-length listening and all audio and video exports. No subscription or per-track fees. FEWER DECISIONS. YOUR SOUND. Start with the defaults, or adjust genre, character and loudness, from Soft to Loud. Pick one of 27 Smart References or import your own reference track. Hear the actual original and mastered levels, or turn on Match loudness for a fair comparison at matched listening volume. MUSIC AND VIDEO Finish a song, a performance video or a spoken recording. Video imports offer video export with finished sound and the original picture. Import videos from Files or Photos. For spoken content, choose the Speech preset. Save finished videos directly to Photos or share them to Files and other apps. EXPORT WITH CONTROL Unlock WAV at 24 or 16 bits, MP3 at 320 kbps, and MOV video with finished audio. Use Soren's -0.8 dBTP peak ceiling or choose -1.0 dBTP. Video exports use a 24-bit PCM soundtrack, so files can be larger than the original compressed video. PRIVATE PROCESSING Audio processing happens on your device. No audio uploads, Soren account or cloud processing service. Apple handles in-app purchases. Supports files up to six minutes. Audio: mono/stereo WAV, AIFF, M4A and MP3 at 32-96 kHz. Video: supported MOV/MP4 files with a single mono/stereo soundtrack. Keep Soren open while it processes or exports. The mobile unlock is separate from desktop Soren. Requires iOS or iPadOS 17 or later.
Screenshots
Verdict
The clearest difference is price: Soren at Free against SL Echo's $6.99. SL Echo's advantage is iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support 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
Soren is free to download; SL Echo costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | SL Echo | Soren |
|---|---|---|
| Price | $6.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 18 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | VIACHESLAV ZHILTSOV | Rast Media GmbH |
In-app purchases
SL Echo
No in-app purchases
Soren
No in-app purchases









