# Calca app vs CoPi

The clearest difference is ads: CoPi at none against Calca app's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Calca app sells 4 in-app purchases, starting at $2.99 per year and CoPi sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Calca app ships an update fortnightly, CoPi every 2 weeks. The most recent releases landed on October 14, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Calca app | CoPi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (88 ratings)](https://appshunter.io/ios/app/calca-app/id1567655347/reviews)** | — |
| Number of ratings | **88** | — |
| Positive reviews | 48.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 7 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Francisco Mateo Marquez](https://appshunter.io/developer/990577710) | [Daniel Kuhl](https://appshunter.io/developer/1530682150) |

## What reviewers say

### Calca app

[App page](https://appshunter.io/ios/app/calca-app/id1567655347)

This app allows you to project any image from your device or camera onto a surface for drawing or tracing. It offers customization options for fonts and colors, and can even capture web pages. Tutorials are available to help users get the most out of its features.

**Highlights:** Image projection for drawing, Camera lucida functionality, Customizable fonts (1550+), Web page capture, 3D effect option, Multicultural language support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One-year subscription | $2.99 | per year |
| Monthly Advanced Founder Plan | $4.99 | per month |
| Yearly Basic Founder Plan | $49.99 | per year |
| Permanent License | $149.99 | one-time |


### CoPi

[App page](https://appshunter.io/ios/app/copi/id6739947845)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| all features | $1.99 | one-time |


## Frequently asked questions

### Is Calca app free?

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

### Is CoPi free?

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

### Do Calca app or CoPi have ads?

Calca app shows ads; CoPi does not.

### Which is updated more often, Calca app or CoPi?

Calca app ships an update fortnightly, and CoPi every 2 weeks. Most recently, Calca app was updated on October 14, 2026 and CoPi on September 29, 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.*