perfect for my short film!
I needed a tiktok feed for my short and it was impossible to set up a fake feed with my own content. this was literally perfect because my main character goes viral and I could show them going viral!
Free
In-App Purchases
About
This app transforms a spare iPhone into a customizable prop phone for film and video production. Create realistic lock screens, scripted message conversations, and on-cue incoming calls. It's designed to keep the screen awake during long takes, ensuring seamless filming.
✓Customizable lock screen
✓Scripted message conversations
✓Triggered incoming calls/texts
✓Short-form video feed
✓Screen stays awake
✓Built-in editor
Show original description
What's New in Understudy
1.2.0
August 2, 2026
Squashed bugs. Now the phone screens dims when you lift it to your ear during an active phone call.
1
In-App Purchases
$29.99
Full Access
Unlock every prop screen. One-time buy.
User reviews
Developer apps
FAQ
What is Understudy used for?
Understudy is used to turn a spare iPhone into a camera-ready prop phone for film and video production. It allows users to stage realistic screens like lock screens, message conversations, and incoming calls.
Can I send real messages or make real calls with Understudy?
No, Understudy displays fictional content for production use only. It does not send real messages, place real calls, or interact with actual communication networks.
How do I set up custom content in Understudy?
You can set up contacts, conversations, and videos using the built-in editor. A double-tap anywhere with two fingers activates the editor for content customization.
Does Understudy have ads?
No, Understudy does not contain advertisements. It is designed to be an unobtrusive tool for film sets.
What devices does Understudy support?
Understudy is supported on iPhones. It is designed to utilize the iPhone's capabilities for its prop phone functions.
What is the age rating for Understudy?
Understudy has an age rating of 12+. This indicates it is suitable for users aged 12 and above.
How often is Understudy updated?
The latest version, 1.0.1, was released on July 21, 2026, shortly after its initial release on July 16, 2026. This suggests active development and potential for frequent updates.
What are the in-app purchases for Understudy?
While the app is free to download, it offers in-app purchases. Specific details on what these purchases unlock are not provided in the app description.