# DOT dataCalc vs COPRA onset

The clearest difference is in-app purchases: COPRA onset at none against DOT dataCalc's 2. COPRA onset also leads on iOS requirement (9.0 vs 17.0). DOT dataCalc's advantage is review sentiment (13% vs 0%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. DOT dataCalc sells 2 in-app purchases, starting at $1.99 per month. COPRA onset asks for nothing beyond the download.

DOT dataCalc ships an update monthly, COPRA onset every 2 months. The most recent releases landed on October 5, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | DOT dataCalc | COPRA onset |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/copra-onset/id538799539/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **12.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Freemium | **Free** |
| Size | 1 MB | 29 MB |
| Requires iOS | 17.0 | **9.0** |
| Devices | iPhone, iPad | iPad, Apple TV |
| Age rating | 4+ | 4+ |
| Developer | [JOSE F DA SILVA NT](https://appshunter.io/developer/524992898) | [CinePostproduction GmbH](https://appshunter.io/developer/428499739) |

## What reviewers say

### DOT dataCalc

[App page](https://appshunter.io/ios/app/dot-datacalc/id524992895)

This app helps digital cinema and video professionals estimate storage needs for their recordings. It calculates file sizes based on chosen camera models, codecs, and recording durations. Access to all features may require a subscription.

**Highlights:** Instant storage estimation, Camera setup options, Supports numerous camera models, Calculates file size by recording time, Multiple codec support, Subscription for full features

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $4.99 | per year |


### COPRA onset

[App page](https://appshunter.io/ios/app/copra-onset/id538799539)

Distribute daily footage from remote shooting locations directly from your DIT cart. Securely transfer clips to iPhones and iPads for offline viewing. Requires a free server installation.

**Highlights:** Remote dailies distribution, Secure clip transfer, Offline viewing on mobile devices, Free server installation, iPad and iPhone support

**In-app purchases:** none


## Frequently asked questions

### Is DOT dataCalc free?

DOT dataCalc is free to download, with in-app purchases available.

### Is COPRA onset free?

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

### Do DOT dataCalc or COPRA onset have ads?

Neither DOT dataCalc nor COPRA onset shows ads.

### Which is updated more often, DOT dataCalc or COPRA onset?

DOT dataCalc ships an update monthly, and COPRA onset every 2 months. Most recently, DOT dataCalc was updated on October 5, 2026 and COPRA onset on September 25, 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.*