RZ Timecode Calculator vs Exp3rt Gray Card
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RZ Timecode Calculator
This tool assists with timecode calculations for video editing and animation. It's designed for field use when built-in editing software functions are not readily available. A simple and useful utility for creative professionals.
- Timecode calculations
- Video editing assistance
- Animation support
- Field use utility
- Simple interface
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I used to have a calculator called the FrameMaster. It was wonderful and useful for video editing and animation. Now this function is pretty much built in to the editing apps. However, you may find yourself in the field needing to do some simple timecode calculations, and then, THIS IS APP YOUR BEST FRIEND!
Exp3rt Gray Card
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Achieve Better Color Balance Through Learning and Practice Exp3rt Gray Card is an educational reference tool designed for photographers, videographers, and editors who want to better understand color calibration and white balance. It helps you practice consistent color control in various lighting conditions—ideal for training your eye and refining your workflow. Note: - This app is not a replacement for a physical gray card. - It serves as a visual aid for learning and testing purposes only. - For critical work, we recommend using a real gray card. Who is Gray Card for? Ideal for: * Photographers & Students: Learn how to assess and correct white balance. * Videographers: Experiment with lighting conditions and color references. * Editors: Train your color perception and editing precision. * Hobbyists & Educators: Use in photography classes or demonstrations. Key Features: 1. Grayscale Reference Virtual 18% gray card + additional gray tones (black to light gray). 2. Primary & Secondary Colors RGB and CMY swatches for color profiling practice. 3. White Balance Aids Skin tone references and temperature adjustments. 4. Lighting Condition Simulations Warm, cool, and fluorescent color tints for practical comparison. 5. Always On-Hand Lightweight tool for testing and education—no physical tools required. Why Use Gray Card? * Learn by Doing: Understand how light and color affect your shots. * Build Confidence: Know what to expect before your actual shoot. * Save Time: Improve color accuracy through better awareness. Train Your Eye. Improve Your Shots. Download Exp3rt Gray Card and use it as your portable guide to better color understanding.
Screenshots
Verdict
The clearest difference is price: RZ Timecode Calculator at Free against Exp3rt Gray Card's $3.99. RZ Timecode Calculator also leads on iOS requirement (15.6 vs 18.2). Exp3rt Gray Card's advantage is update cadence (every 2 months vs every 10 months) and chart position (#194 vs unranked). On ads, in-app purchases and device support 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
RZ Timecode Calculator is free to download; Exp3rt Gray Card costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RZ Timecode Calculator ships an update every 10 months, Exp3rt Gray Card every 2 months. The most recent releases landed on September 16, 2026 and October 8, 2026 respectively.
| Parameter | RZ Timecode Calculator | Exp3rt Gray Card |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 1.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 10 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | — | #194 — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.2 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Robert L Zimmelman | Serge Benati |
In-app purchases
RZ Timecode Calculator
No in-app purchases
Exp3rt Gray Card
No in-app purchases
Questions
Is RZ Timecode Calculator free?
Is Exp3rt Gray Card free?
Do RZ Timecode Calculator or Exp3rt Gray Card have ads?
Which is updated more often, RZ Timecode Calculator or Exp3rt Gray Card?
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