Eternal Flow Dub vs SL Knock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eternal Flow Dub
This app generates endless dub techno music directly on your device. Enjoy a unique "live" mix experience that works offline, with features to control track changes, loop freezing, and instrument muting.
- Endless dub techno music generation
- Offline playback
- Automatic track changes
- Loop freezing
- Instrument muting
- Track delay
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If you like dub techno music, you can turn your phone into endless dub techno "mix" or "live" generator. Just turn it on, press Start and listen as a usual player, but music will never end. Main theme or "track" will change in every 3-4 minutes automatically. All music is created right on your phone so it can work offline without internet connection. - To switch to next track tap Reset button. - To record/stop recording created music tap R icon. - If you like current loop and want to listen to it for a long time, press snowflake icon - loop will freeze and instruments and patterns will not change until you tap snowflake again. - If you want to postpone next track's start tap on plus icon and current track's time will be increased by 64 bars. - Also it has "mute" feature - tap on gear icon and you can disable chosen instruments and use app as a chord generator, for example.
SL Knock
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SL Knock is a focused AUv3 dynamics and tone effect for adding punch, body and controlled low-end weight to drums, samples and loops. • Fast controls for impact and body • Tone shaping for tighter or heavier character • Mix control for parallel processing • 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.
Screenshots
Verdict
The clearest difference is update cadence: SL Knock at weekly against Eternal Flow Dub's every 3 months. Eternal Flow Dub's advantage is price ($4.99 vs $6.99) and iOS requirement (10.2 vs 15.0). 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
Eternal Flow Dub costs $4.99 and SL Knock $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Eternal Flow Dub ships an update every 3 months, SL Knock weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Eternal Flow Dub | SL Knock |
|---|---|---|
| Price | $4.99 — better | $6.99 |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.2 — better | 15.0 |
| Further details — not scored | ||
| Size | 74 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Petr Serkin | VIACHESLAV ZHILTSOV |
In-app purchases
Eternal Flow Dub
No in-app purchases
SL Knock
No in-app purchases









