Comparison

Lighting Ratio vs Cinema Slate

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

Head to head
About

Lighting Ratio

This app simplifies exposure calculations for photographers and filmmakers. It allows users to determine fill or background stops based on key light values and instantly calculates contrast ratios by inputting key and fill stops. On-screen explanations provide step-by-step mathematical guidance.

Highlights
  • Calculate fill or background stops
  • Enter key and fill stops
  • Instant contrast ratio calculation
  • Clear on-screen explanations
  • Step-by-step math guidance
Features
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Lighting Ratios makes exposure calculations quick for photography and film lighting. • Calculate fill or background stops from any key light value • Enter key and fill stops to instantly get contrast ratios • Clear on-screen explanations with step-by-step math

About

Cinema Slate

Features
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Cinema Slate is the professional digital clapperboard and production slate for filmmakers and videographers. Mark takes with a real clap, generate sync timecode, and keep a clean shot log — all from your phone or tablet, at a fraction of the cost of a hardware slate. Replace a physical clapperboard with a production-ready digital board. Tap the clapper to start, generate or lock to timecode, rate takes, and move on to the next shot. Used on indie sets, commercials, docs, music videos, and multi-cam shoots — saving hours later in the edit when matching, syncing, and logging footage. PRODUCTION FIELDS Edit production info on the slate and in project details: scene, shot, take, roll, day, director, DOP, operator, lens, mic, FPS, location, day/night, sound, MOS/sync, and INT/EXT. Industry-style lettered shot codes (A, B, … Z, AA) with quick increment/decrement controls keep you moving between setups. CLAPPERBOARD Tap the sticks for an audible clap and screen flash — a sync marker for picture and sound. Go hands-free with volume buttons or a shake, so both hands stay on the stick. Shot a bad one? Redo discards the entry so you can clap again cleanly. Happy with it? Next Take saves notes and rating, then advances to the next take. LOGGING & EXPORT Every clap logs scene, shot, take, roll, day, and timecode to your shot history. Add notes and a rating, then filter the log by scene or shot — no more wading through footage. Export CSV for editorial, and backup or restore your entire database as JSON. With PRO: unlimited projects, and take numbers beyond take 1 — organize by client, project, and production. TELEPROMPTER (PRO) Keep scripts in every project and read them fullscreen: adjustable speed, text size, and width, mirroring for beam splitters, reading guide, and countdown. Voice mode scrolls only while you speak, and Follow Take resets the reader when a take starts. SLATE SYNC (PRO) Sync project metadata and full take history to nearby Cinema Slate apps over your local network. Optional passcode pairing keeps production data safe while mirroring slate state across multiple devices on set. TIMECODE (PRO) Full timecode display down to the frame. Generate Free Run, Rec Run or Time of Day timecode and jam sync your cameras. Output LTC audio for cameras and recorders with LTC in. Lock to external sources — Tentacle Sync, ATEM switchers, BT Cam, nearby devices over network or Bluetooth, or any LTC device — or broadcast timecode over the network so every device stays frame-accurate. Play back media files with embedded timecode. BT CAM INTEGRATION (PRO) Pair with BT Cam over your network: send or receive timecode, and start or stop recording on every camera connected in BT Cam the moment you clap. Discover BT Cam on your LAN, on this device, or by manual host. OFFLINE & PRIVATE No sign-up required. Works fully offline, anywhere. Your shot history is always on hand to view, edit, or send. GETTING STARTED Create a new project or use the default one Set scene, shot, and take Tap the clapper to start PRICING Free forever with basic features. Unlock PRO with one one-time purchase — no subscription, ever. PRO FEATURES one-time purchase - Timecode generator: Free Run, Rec Run & Time of Day - Full timecode display (hours:minutes:seconds:frames) - Slate Sync — sync project metadata and full take history to nearby Cinema Slate apps - Secure pairing — optional passcode for Slate Sync - Nearby timecode — sync timecode from nearby devices over network or Bluetooth - Wireless timecode sync with Tentacle Sync, ATEM, BT Cam - LTC Audio generator for cameras and recorders with LTC-In - Timecode sync with any LTC device - Media file timecode playback - Camera remote control: clap triggers record start/stop on cameras connected in BT Cam - Unlimited projects — organize by client, project, and production - Teleprompter — per-project scripts, TXT/Markdown import, mirroring, voice scrolling - Take numbering beyond take 1 — full multi-take logging

Screenshots

Lighting Ratio3 screens
Cinema Slate4 screens

Verdict

The call

The clearest difference is in-app purchases: Lighting Ratio at none against Cinema Slate's 1. Cinema Slate's advantage is update cadence (monthly vs every 4 months). 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. Cinema Slate sells 1 one-off in-app purchase. Lighting Ratio asks for nothing beyond the download.

UpkeepUpdate frequency

Lighting Ratio ships an update every 4 months, Cinema Slate monthly. The most recent releases landed on October 22, 2026 and October 26, 2026 respectively.

Scorecard2 real differences · 7 level
Lighting Ratio versus Cinema Slate: the parameters behind the verdict, then further details
ParameterLighting RatioCinema Slate
PriceFreeFree
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 4 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, Apple Watch, Vision ProiPhone, iPad, iPod, Mac
Requires iOS16.515.0 — better
Further details — not scored
Size2 MB86 MB
Age rating4+4+
DeveloperDavin NguyenNavideck Labs OU

In-app purchases

None

Lighting Ratio

No in-app purchases

1 purchases

Cinema Slate

One-time1
  • Pro$229.99

Questions

Is Lighting Ratio free?
Lighting Ratio is free to download, with no in-app purchases.
Is Cinema Slate free?
Cinema Slate is free to download, with in-app purchases available.
Do Lighting Ratio or Cinema Slate have ads?
Neither Lighting Ratio nor Cinema Slate shows ads.
Which is updated more often, Lighting Ratio or Cinema Slate?
Lighting Ratio ships an update every 4 months, and Cinema Slate monthly. Most recently, Lighting Ratio was updated on October 22, 2026 and Cinema Slate on October 26, 2026.

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