tcCalc vs ATOMOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
tcCalc
This calculator specializes in timecode and frame-based calculations, offering a familiar interface for quick conversions and duration calculations. It supports multiple frame rates and allows for easy copying and pasting of results.
- Timecode and frame calculations
- Convert between timecode and frames
- Supports multiple frame rates
- Automatic value adjustment
- Copy and paste functionality
- Memory function
- Calculation history
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tcCalc is a calculator built for one job: timecode math in video production. Add and subtract timecode, let it handle drop frame for you, and switch to a frame count with a single tap - all with the feel of an ordinary calculator. Supported frame rates 23.98 / 24 / 25 / 29.97 / 30 / 50 / 59.94 / 60 fps, plus hh:mm:ss for working without frames. Drop frame is applied automatically at 29.97 and 59.94 fps. Features - Add and subtract timecode - One-tap switching between timecode and frame count - Automatic drop frame handling (29.97 / 59.94 fps) - hh:mm:ss mode - Constant calculation for repeating the same operation - Memory functions (add, subtract, recall, clear) - Calculation history (up to 20 entries, tap to restore) - Copy and paste - Dark mode - iPhone and iPad, all four orientations - Dynamic Type and VoiceOver support Simple by design - No ads - No in-app purchases - No network access - works entirely offline - No analytics and no tracking Whether you are timing a shoot, finding an edit point, or adding up the length of your footage, tcCalc keeps the math out of your way.
ATOMOS
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The ATOMOS - Sun Dragon app provides external controls for ATOMOS Sun Dragon light. The app communicates wirelessly via Bluetooth LE or Wi-Fi to perform remote configuration and operation tasks.
Screenshots
Verdict
The clearest difference is price: ATOMOS at Free against tcCalc's $0.99. ATOMOS also leads on iOS requirement (15.0 vs 17.6). tcCalc's advantage is update cadence (every 3 months vs every 10 months). 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
ATOMOS is free to download; tcCalc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
tcCalc ships an update every 3 months, ATOMOS every 10 months. The most recent releases landed on September 23, 2026 and September 8, 2026 respectively.
| Parameter | tcCalc | ATOMOS |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.7 (76 ratings) — better | — |
| Positive reviews | 63.2% of reviews | — |
| Number of ratings | 76 — better | — |
| Update frequency | Every 3 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | RYUICHIROU SHIMONO | Atomos Ltd. |
In-app purchases
tcCalc
No in-app purchases
ATOMOS
No in-app purchases
Questions
Is tcCalc free?
Is ATOMOS free?
Do tcCalc or ATOMOS have ads?
Which is updated more often, tcCalc or ATOMOS?
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