Support
We're here to help
Frequently Asked Questions
What frame rates are supported?
Brollr can import footage at virtually any frame rate — including high-speed sources like 120 and 240 fps. It automatically detects your source rate and offers valid conversion options. For export, it supports 23.98, 24, 25, 29.97, 30, 50, 59.94, and 60 fps. High-speed footage can be slowed down with perfect integer ratios (e.g., 120→60, 60→30). NTSC and integer rate families are kept separate to ensure correct conversions.
How do I set up FTP credentials?
Go to the Upload tab, tap the settings gear icon, and enter your BlackBox FTP username and password. Credentials are stored securely in your device's Keychain and are only used to connect to portal.blackbox.global.
What are the file size and duration limits?
Brollr supports importing clips of 5 seconds or longer. For BlackBox uploads, file size limits are 4 GB for 4K footage and 3 GB for HD. Clip duration should be 5–59 seconds, with 10–20 seconds being the sweet spot for stock footage that sells well.
How does AI keywording work?
Brollr compresses a sample of your video and sends it to an AI service for analysis. It returns a title, description, and keywords. You can add optional context (location, scene description) before generating. Review and edit everything before accepting.
How do I manage my subscription?
Subscriptions are managed through your Apple ID. On your iPhone or iPad, go to Settings → your name → Subscriptions. From there you can change plans, cancel, or restore purchases.
Every account gets 5 free AI credits a month without a subscription. Basic costs $4.99 a month or $49.99 a year in the US store and includes 80 AI credits a month, with a 7-day free trial. Pro costs $9.99 a month or $89.99 a year and includes 350. Both include looks. Prices vary by country.
What video formats and resolutions are supported?
Brollr can import any video format your iPhone or iPad can read, including H.264, H.265 (HEVC) and ProRes. Exports are MP4 and keep the source codec family: H.264 sources export as H.264, HEVC and ProRes sources export as HEVC, and HDR that you choose to preserve always exports as 10-bit HEVC. Supported resolutions include 720p, 1080p, 4K, and DCI 4K in both landscape and portrait orientations. HDR footage (PQ and HLG) is detected automatically, and you can preserve HDR or convert to SDR with the toggle on the trim screen. A look always exports in SDR.
Why is audio stripped from exports?
BlackBox requires stock footage without audio. Brollr automatically removes audio during export to meet this requirement — you don't need to do anything extra.
How do I import from a drone, an SD card or another app?
Three ways. Pick clips from your photo library in the built-in picker. Tap Share in Photos, Files or any other app and choose Brollr. Or tap the plus button and choose From Files to pull clips from a connected drone, USB drive, SD card or iCloud Drive.
Why are some clips marked in the picker?
The picker checks each clip against BlackBox's rules before import and shows the reason on the clip, for example an unsupported resolution or a duration under 5 seconds. You can filter by landscape or portrait, hold a clip to preview it, swipe across several clips to select them, switch albums, and see which clips still need to download from iCloud.
What are looks?
Looks are three color presets, Natural, Warm and Cool, applied before export. The trim preview shows the original on one side and the look on the other, and you drag the divider to compare. A look always exports in SDR. Looks are included with Basic and Pro.
Can I preview a clip on my TV?
Yes, with AirPlay from the two preview screens. The upload preview sends the exact file that goes to BlackBox. The prep preview sends the clip with the look and the HDR or SDR setting applied.