MIDI File Generator vs SL Knock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MIDI File Generator
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MIDI FIle Generator makes it easy to create MIDI files for sampling music synthesizers. The results can be imported into any Digital Audio Workstation (DAW) app that supports Standard MIDI files. Select the start note, end note, and interval in semitones. Then select the velocities you want. Finally adjust the duration and decay of the note, and the silence between individual notes.
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 MIDI File Generator's every 6 months. MIDI File Generator's advantage is price ($1.99 vs $6.99). On ads, in-app purchases, device support and iOS requirement 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
MIDI File Generator costs $1.99 and SL Knock $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
MIDI File Generator ships an update every 6 months, SL Knock weekly. The most recent releases landed on October 30, 2026 and November 10, 2026 respectively.
| Parameter | MIDI File Generator | SL Knock |
|---|---|---|
| Price | $1.99 — better | $6.99 |
| Update frequency | Every 6 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Conifer Productions Oy | VIACHESLAV ZHILTSOV |
In-app purchases
MIDI File Generator
No in-app purchases
SL Knock
No in-app purchases
Questions
Is MIDI File Generator free?
Is SL Knock free?
Do MIDI File Generator or SL Knock have ads?
Which is updated more often, MIDI File Generator or SL Knock?
Other comparisons
