Comparison

RTctrl vs Video Size Calculator Pro

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

Head to head
About

RTctrl

Features
Read full description

The RTctrl Lighting Control App provides you professional control of your lighting fixtures. With its custom protocol based on Bluetooth the RTctrl App provides precise and lag free control of your compatible lights. Offering a wide range of light control modes with intuitive user interface optimized for quick settings you can control your lights using: - UltraWhite Light Mode - CCT Mode - Extended CCT Mode - HSI Mode - x,y coordinates Mode - RGB Mode - GELs - Effects The RTctrl App enables you to control individual lights or you can create custom groups. For advanced control you can create scenes & sequences of scenes with custom timings and fades from scene to scene for precise and repeatable lighting processes. Create Favorites and Custom Modes based on the Standard Modes for easy access of your most used lighting settings. Manage, store and recall all of your lighting Projects in the most simple way.

About

Video Size Calculator Pro

Estimate video file sizes before recording or export. Calculate based on resolution, frame rate, codec, audio, and duration. Balance quality and storage needs with accurate, offline calculations.

Highlights
  • Video size calculation
  • Batch processing for multiple clips
  • Reverse calculation for target file size
  • Extensive resolution, FPS, and codec options
  • Offline functionality
  • Accessibility features
Features
Read full description

Video Size Calculator Pro helps filmmakers, editors, and creators predict video file sizes before recording or export. Choose resolution, frame rate, codec, audio format, and duration to get instant, accurate estimates β€” then balance quality vs storage with confidence. Works offline, no accounts or tracking. Core tools β€’ Size Calculator: 20+ resolution presets (720p β†’ 8K/8K DCI), 15+ FPS (23.976 β†’ high-speed), 25+ codec families (ProRes, H.264/H.265/HEVC, DNxHD/HR, AV1, VP9, MPEG-2, ProRes RAW), audio presets, overhead margin, binary/decimal storage toggle. β€’ Batch Calculator: Add multiple clips with their own settings, see per-clip + total size, and export a summary for planning. β€’ Reverse Calculator: Start from a target file size + duration; get suggestions and side-by-side comparisons to hit your goal. Why you’ll like it β€’ Fast & accurate calculations with a polished, SwiftUI-native design, haptics, smooth animations, and large touch targets. β€’ Accessibility first: Dynamic Type, VoiceOver, and high-contrast friendly. β€’ No accounts, no ads, no tracking SDKs; calculations stay on device. What’s new in 1.1 β€’ iPad enabled: Universal build with proper orientations and centered, large-screen layout. β€’ Pro Unlock (one-time, non-consumable): Pro Themes, Project Profiles (save/load named presets with iCloud KVS), explained comparisons, and more premium touches. β€’ Styled paywall: gradient header, feature icons, price badge, disabled state until StoreKit is ready, and helpful alerts. β€’ Full localization pass across 8 languages (EN, ZH-Hans, JA, KO, DE, FR, ES, PT-BR). β€’ Calculation correctness & polish improvements.

Screenshots

RTctrl4 screens
Video Size Calculator Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: RTctrl at none against Video Size Calculator Pro's 1. RTctrl also leads on iOS requirement (11.0 vs 18.5). On price, update cadence, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Video Size Calculator Pro sells 1 one-off in-app purchase. RTctrl asks for nothing beyond the download.

UpkeepUpdate frequency

RTctrl ships an update monthly, Video Size Calculator Pro every 3 weeks. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

Scorecard2 real differences Β· 6 level
RTctrl versus Video Size Calculator Pro: the parameters behind the verdict, then further details
ParameterRTctrlVideo Size Calculator Pro
PriceFreeFree
Positive reviewsβ€”100.0% of reviews
Update frequencyMonthlyEvery 3 weeks β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
Monetizationβ€”Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 β€” better18.5
Further details β€” not scored
Size39 MB11 MB
Age rating4+4+
DeveloperHMO Europe B.V.Cederic Schmid

In-app purchases

None

RTctrl

No in-app purchases

1 purchases

Video Size Calculator Pro

One-time1
  • Pro Unlock$4.99

Questions

Is RTctrl free?
RTctrl is free to download, with no in-app purchases.
Is Video Size Calculator Pro free?
Video Size Calculator Pro is free to download, with in-app purchases available.
Do RTctrl or Video Size Calculator Pro have ads?
Neither RTctrl nor Video Size Calculator Pro shows ads.
Which is updated more often, RTctrl or Video Size Calculator Pro?
RTctrl ships an update monthly, and Video Size Calculator Pro every 3 weeks. Most recently, RTctrl was updated on September 23, 2026 and Video Size Calculator Pro on September 25, 2026.

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