ROE Calculator vs Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Ballast calculation
- Pixel and resolution calculation
- Power requirement analysis
- Technical calculations for LED screens
- On-site and preparation tools
Read full descriptionHide 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.
Sync
Read full descriptionHide full description
Sync-it Plus is a professional companion app for any Sync-it hardware device. Get real time AV sync measurements when used with a hardware Sync-it. Record sync measurements and analyse them in slomo later using the app. Generate the Sync-it test pattern for hardware to measure. Works at all common frame rates and displays NTP time in the correct timecode format.
Screenshots
Verdict
The clearest difference is in-app purchases: ROE Calculator at none against Sync's 4. Sync's advantage is update cadence (every 9 days vs every 6 weeks). 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. Sync sells 4 one-off in-app purchases. ROE Calculator asks for nothing beyond the download.
ROE Calculator ships an update every 6 weeks, Sync every 9 days. The most recent releases landed on June 1, 2026 and September 21, 2026 respectively.
| Parameter | ROE Calculator | Sync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 29 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | ROE Visual Co., Ltd | Sync-it.co.uk |
In-app purchases
ROE Calculator
No in-app purchases
Sync
- Hardware UnlockFree
- Sync-It 14 Day TrialFree
- Sync-it legacy unlock$44.99
Show 1 moreShow fewer
- Sync-It Full Unlock$89.99
