SD vs Mr. Slate
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SD
Control your Sound Devices 8-Series mixer-recorder remotely from your iPad or iPhone. Manage transport, edit metadata, take notes, monitor outputs, and adjust channel settings like faders, trims, and pan. View large-scale meters and timecode on all screens.
- Remote transport controls
- Metadata editing
- Take notes
- Monitor outputs
- Adjust faders, trims, and pan
- Channel arming, disarming, solo, and mute
- Large-scale channel meters
- Timecode display
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Control your Sound Devices 8-Series mixer-recorder from your iPad or iPhone with SD-Remote. Quickly access transport controls, edit metadata, write Take Notes, monitor outputs, and adjust faders, trims, and pan controls. Arm, disarm, solo, and mute channels with ease. Large-scale meters are available for all channels, and the current timecode is displayed on every screen.
Mr. Slate
This app provides a straightforward digital film slate for video production. It allows users to input essential information, display it on screen, and trigger a visual and auditory cue for syncing audio and video in post-production. It's designed for simplicity and effectiveness.
- Digital film slate functionality
- Input essential production information
- Visual red flash cue
- Auditory clap sound cue
- Audio and video sync aid
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Movie slates are used to display useful info to the video editor and allow the editor to sync audio and video. This is a SUPER simple movie slate app. It's not fancy, but it does the job. Just type in the information, show it to the camera and hit "clap". A red flash will appear and a clap sound will play. From there you should be able to sync your audio and video in post just as you would with any other movie slate. If you have any ideas for improvements please let me know via a 5 star review or via email mail@brendenvogt.com Enjoy
Screenshots
Verdict
The clearest difference is rating: SD at 3.4 against Mr. Slate's 2.2. Mr. Slate's advantage is update cadence (daily vs every 2 months) and iOS requirement (9.0 vs 12.0). On price, review sentiment, ratings volume and ads 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.
SD holds the better App Store score, 3.4 against 2.2. Both are backed by a comparable volume of ratings — 12 and 6 respectively. Written reviews complicate that: 22% of SD's written reviews are positive against 25% of Mr. Slate's, so the app with the better star average is not the one people write more warmly about.
SD ships an update every 2 months, Mr. Slate daily. Both last shipped on October 24, 2026.
| Parameter | SD | Mr. Slate |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (12 ratings) — better | 2.2 (6 ratings) |
| Positive reviews | 22.2% of reviews | 25.0% of reviews — better |
| Number of ratings | 12 — better | 6 |
| Update frequency | Every 2 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 55 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Sound Devices, LLC | Brenden Vogt |
Customer experience
SD
Mr. Slate
In-app purchases
SD
No in-app purchases
Mr. Slate
No in-app purchases
