Brollr for BlackBox Global
Prep & Upload Stock Footage
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Prep and upload to BlackBox for free. Fixes iPhone variable frame rate, uploads over FTP. Optional AI keywording: 5 free credits a month, 7-day free trial on Basic.
Brollr is a free companion app for BlackBox Global stock footage contributors. Prep your clips on iPhone or iPad and upload them to BlackBox over FTP, with the technical requirements handled for you. AI keywording is an optional paid add-on, and the free prep-and-upload workflow works without it.
FREE TO PREP AND UPLOAD
Preparing clips to BlackBox requirements and getting them onto the portal is free forever. Drop in a clip from your photo library, trim it, and Brollr converts the frame rate, strips the audio, exports at BlackBox-accepted specs, and uploads over TLS.
A PICKER MADE FOR STOCK FOOTAGE
Filter your library by landscape or portrait, hold a clip to play a preview, and swipe across clips to select several at once. Clips that BlackBox will not accept are marked with the reason before you import them, and you can see which clips need to be downloaded from iCloud first.
BUILT FOR BLACKBOX REQUIREMENTS
Brollr re-encodes your clips to BlackBox's spec automatically: supported frame rates from 23.98 to 60 fps with NTSC and integer families handled separately, audio stripped, duration trimmed to 5–59 seconds, size limits enforced, 4K and HD with HDR preserved or converted to SDR. iPhone footage is usually recorded at a variable frame rate, which BlackBox rejects. Brollr converts it to a constant supported frame rate, so your iPhone clips pass review.
SLOW MOTION, DONE RIGHT
Shot at 60 or 59.94 fps and want to deliver slow motion? Brollr knows which slow-down rates are valid for your source (NTSC stays with NTSC, integer stays with integer) and offers only the ones that keep every frame. The result is true native slow motion that BlackBox will accept.
BATCH UPLOAD VIA FTP
Connect once with your BlackBox FTP credentials and upload the whole batch to portal.blackbox.global over TLS. Tap Upload and set the device down.
OPTIONAL: AI KEYWORDING
Titles, descriptions, and keywords are the most tedious part of contributing. Brollr has an optional AI that watches your clip and generates a title, a description, keywords, and a filename in seconds. You get 5 free credits every month, and a subscription adds more volume. The free prep-and-upload workflow works without it.
YOUR WORKFLOW
1. Import and trim your footage (free)
2. Upload to BlackBox via FTP (free)
3. Optional: generate keywords with AI (5 free credits monthly, or subscribe for more)
4. Optional: export metadata as BlackBox-ready CSV
FREE FOREVER
• Stock-footage video picker: orientation filter, hold-to-preview, batch select
• Import from Photos, trim to the sweet spot
• Frame-rate conversion (23.98 to 60 fps, NTSC-aware), VFR fixed automatically
• True slow motion from high-frame-rate footage
• Audio strip, codec enforcement, size validation
• 4K and HD support, HDR preserve or convert to SDR
• Batch FTP upload over TLS to BlackBox Global
• Works offline for import, trim, and export
PAID (OPTIONAL, WITH FREE MONTHLY CREDITS)
• AI keywording: title, description, keywords, filename
• Every contributor gets 5 free AI credits every month
• Unlimited volume with a subscription
• CSV metadata export in BlackBox format
Built by a fellow BlackBox contributor.
Not affiliated with BlackBox Global.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fixes and small improvements.
In the prep preview, turning on AirPlay with a look selected no longer shows the "Preparing look preview" text twice on the phone. The TV keeps showing the placeholder clip until the proxy is ready.
The Subscription sheet has a new row to rate Brollr on the App Store.
Under the hood, the anonymous usage statistics now include the subscription tier and the app version, so we can see where the workflow needs work. No personal data and no video content are sent.
The developer, Yes Please Boats Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- User Content
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yes Please Boats Ltd
- Size
- 14.4 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Brollr Basic Monthly $4.99
- Brollr Pro Monthly $9.99
- Brollr Pro Annual $89.99
- Brollr Basic Annual $49.99
- Copyright
- © 2026 Yes Please Boats
