# tcCalc vs ATOMOS

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.

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.

## The numbers

| Metric | tcCalc | ATOMOS |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.7 (76 ratings)](https://appshunter.io/ios/app/tccalc-timecode-and-frame-calc/id1144759699/reviews)** | — |
| Number of ratings | **76** | — |
| Positive reviews | 63.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 10 months |
| Monetization | Paid | — |
| Size | 1 MB | 26 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RYUICHIROU SHIMONO](https://appshunter.io/developer/696880855) | [Atomos Ltd.](https://appshunter.io/developer/1468547360) |

## What reviewers say

### tcCalc

[App page](https://appshunter.io/ios/app/tccalc-timecode-and-frame-calc/id1144759699)

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.

**Highlights:** Timecode and frame calculations, Convert between timecode and frames, Supports multiple frame rates, Automatic value adjustment, Copy and paste functionality, Memory function, Calculation history

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ATOMOS

[App page](https://appshunter.io/ios/app/atomos-sun-dragon/id6698895443)

**In-app purchases:** none


## Frequently asked questions

### Is tcCalc free?

tcCalc costs $0.99, with no in-app purchases.

### Is ATOMOS free?

ATOMOS is free to download, with no in-app purchases.

### Do tcCalc or ATOMOS have ads?

Neither tcCalc nor ATOMOS shows ads.

### Which is updated more often, tcCalc or ATOMOS?

tcCalc ships an update every 3 months, and ATOMOS every 10 months. Most recently, tcCalc was updated on September 23, 2026 and ATOMOS on September 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*