LTC vs HDMI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LTC
Generate SMPTE linear time code for video and film frame labeling. The audio output is for controlling playback on other devices, not for listening. Run in the background with screen locked and output audio via headphone jack, AirPlay, or Bluetooth.
- Generate SMPTE linear time code
- Audio output for playback control
- Background operation with screen locked
- Multiple audio output options
- Selectable frame rates
- Customizable start and end times (full version)
Read full descriptionHide full description
This app can generate SMPTE linear time code for testing. SMPTE timecode is a set of cooperating standards to label individual frames of video or film with a timecode. The audio output generated from this app is not for human listening, it is for controlling a video playback on another device. You can run the app in the background when your device's screen is locked. You can output the audio though the headphone jack, airplay or bluetooth. In the full version, you are able to: - Select different frame rate: 23.976, 24, 25, 29.97, 30 - Set the starting time. - Set the ending time to automatically stop or alternatively continue playing until you press stop. In the free version: - Select different frame rate: 23.976, 24, 25, 29.97, 30 - Timecode starts from the current device time. - Automatically stops generating and playing at midnight or press stop manually.
HDMI
Transform your device into an external monitor for gaming, photography, and video. Connect consoles, cameras, PCs, and more for high-quality HD streaming. Enjoy a portable display and immersive audio experience.
- External display functionality
- Connect gaming consoles
- High-quality HD streaming
- Supports cameras and PCs
- Portable screen solution
- USB-C video capture card compatible
Read full descriptionHide full description
Turn your device into an external display with HDMI Monitor, perfect for gaming, photo- & video-shooting, and more. Connect your gaming console to your device and enjoy your favorite games without the need to have a TV or Display at hand. Key Features: - Versatile Functionality: Seamless integration with consoles, cameras, professional photoshooting gear, PC, and just about any other device that supports HDMI output. - High-Quality Streaming: Crystal-clear HD video and high-quality audio, with full support for your headphones. - Get a Display and High-Quality Speakers: Turn your device into a media station that’s part of the ecosystem that you can access for complete immersion and 100% satisfaction. - Fast and User-Friendly: Quick setup and responsive design for a hassle-free experience. Improved Connectivity: - Use a simple USB-C video-capture card for easy connection. - Supports various resolutions and frame rates for optimal video clarity. Ideal For: - Gamers, photographers, videographers and geeks. - Anyone needing a portable screen for games, movies, TV, or presentations. You need: HDMI to USB-C Video Capture Card, iPad with USB-C and iOS 17 Try the ultimate app that turns your device into a universal display!
Screenshots
Verdict
The clearest difference is review sentiment: HDMI at 52% against LTC's 0%. HDMI also leads on rating (2.9 vs 1.7) and in-app purchases (none vs 1). On price, ads, 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
Both are free to download. LTC sells 1 one-off in-app purchase. HDMI asks for nothing beyond the download.
HDMI holds the better App Store score, 2.9 against 1.7. That said, the two scores are not equally well evidenced: HDMI has 74 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 0% of LTC's written reviews are positive against 52% of HDMI's.
LTC ships an update every 5 months, HDMI every 3 weeks. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.
| Parameter | LTC | HDMI |
|---|---|---|
| Price | Free | Free |
| Rating | 1.7 (6 ratings) | 2.9 (74 ratings) — better |
| Positive reviews | 0.0% of reviews | 52.2% of reviews — better |
| Number of ratings | 6 | 74 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 16 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Zhuoyao lu | Ion Danilov |
Customer experience
LTC
HDMI
In-app purchases
LTC
- Full version$5.99
HDMI
No in-app purchases









