Comparison

LTC vs ROE Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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)
Features
Read 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.

About

ROE Calculator

This application provides essential technical calculations for LED screens, including ballast, pixel, and power requirement analysis. It's designed to be the ultimate tool for LED technicians during on-site work and production preparation.

Highlights
  • Ballast calculation
  • Pixel and resolution calculation
  • Power requirement analysis
  • Technical calculations for LED screens
  • On-site and preparation tools
Features
Read full description

ROE Visual is proud to announce the release of its groundbreaking ROE Calculator APP. This cutting-edge application is a complete upgrade of the previous ballast calculator and has added many new and exciting options to create essential technical calculations for your LED screens. With a comprehensive suite of tools that include ballast calculation, pixel and resolution calculation, power requirement analysis, and much more, the ROE Calculator APP will become the ultimate tool for LED technicians, whether on-site or in the preparation stages of production.

Screenshots

LTC3 screens
ROE Calculator4 screens

Verdict

The call

The clearest difference is review sentiment: ROE Calculator at 100% against LTC's 0%. ROE Calculator also leads on rating (4.0 vs 1.7) and in-app purchases (none vs 1). LTC's advantage is ratings volume (6 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. LTC sells 1 one-off in-app purchase. ROE Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ROE Calculator holds the better App Store score, 4.0 against 1.7. That said, the two scores are not equally well evidenced: LTC has 6 ratings behind it against 1, 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 100% of ROE Calculator's.

UpkeepUpdate frequency

LTC ships an update every 5 months, ROE Calculator every 6 weeks. The most recent releases landed on September 19, 2026 and June 1, 2026 respectively.

Scorecard6 real differences · 4 level
LTC versus ROE Calculator: the parameters behind the verdict, then further details
ParameterLTCROE Calculator
PriceFreeFree
Rating1.7 (6 ratings)4.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings6 — better1
Update frequencyEvery 5 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1615.1 — better
Further details — not scored
Size1 MB29 MB
Age rating4+4+
DeveloperZhuoyao luROE Visual Co., Ltd

Customer experience

LTC

All ratings6 ratings
Positive16.7%
Neutral0.0%
Negative83.3%
Written reviews10 reviews
Positive0.0%
Neutral10.0%
Negative90.0%

ROE Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

LTC

One-time1
  • Full version$5.99
None

ROE Calculator

No in-app purchases

Questions

Is LTC free?
LTC is free to download, with in-app purchases available.
Is ROE Calculator free?
ROE Calculator is free to download, with no in-app purchases.
Which has better reviews, LTC or ROE Calculator?
ROE Calculator is rated higher. LTC averages 1.7 out of 5 from 6 ratings, while ROE Calculator averages 4.0 from 1 ratings.
Do LTC or ROE Calculator have ads?
Neither LTC nor ROE Calculator shows ads.
Which is updated more often, LTC or ROE Calculator?
LTC ships an update every 5 months, and ROE Calculator every 6 weeks. Most recently, LTC was updated on September 19, 2026 and ROE Calculator on June 1, 2026.

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