# Calca app — Calc Application

> Project images onto surfaces for tracing and drawing with customizable tools. (iPhone/iPad app by Francisco Mateo Marquez.)

- Source: https://appshunter.io/ios/app/calca-app/id1567655347 (this page in markdown: same URL + `.md`)
- Developer: [Francisco Mateo Marquez](https://appshunter.io/developer/990577710)
- Category: Graphics & Design, Utilities
- Price: Free with in-app purchases
- Rating: 4.00/5 from 88 App Store ratings · 50 written reviews indexed
- Age rating: 17+
- Requires: iOS 16.0 · 65 MB
- Languages: American English
- Released: 2021-06-19
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calca-app/id1567655347/reviews.md

## What is Calca app?

CalcaApp: Your Customizable Tool for Transferring Images to Paper
Welcome to the latest CalcaApp update!

Overview:
CalcaApp is an innovative, customizable tool that allows you to transfer any image from your device or captured with your camera to paper, acting as a camera lucida or projector. With a wide selection of features and tools, CalcaApp is designed to inspire you and facilitate your artistic creations.

You can draw on a table on a paper yes, but you can also make a small mural on the wall if you hold your phone upright and looking through it at the image you have chosen on the wall.

3D effect: You can use a basic stand to support the device with a 45 degree tilt or those you choose, and you can make a 3D effect on the drawing. examples with videos and images at CalcaApp.com.

Free for Everyone:
I'm excited to announce that CalcaApp is now completely free for all its users - enjoy all the features at no cost!

Earn Points, Remove Ads:
Coming soon, you'll have options that will require more than ten points. With an active subscription, you'll have access to everything unlocked at the same special price.

Annual Subscription:
If you've noticed that CalcaApp is continually developing and implementing new features, you'll now have access to everything unlocked at the same price.

Multicultural Languages:
We've added new languages, including Italian, plus Russian, French, Indonesian, German, Arabic, English, Spanish and Portuguese, so you can enjoy CalcaApp in your preferred language.

Customize with 1550+ Fonts:
Choose from a wide selection of over 1550 fonts to give a unique touch to your texts and designs. In addition, CalcaApp is customizable in various colors for easy inspiration when using the app.

Improved Web Capture:
Now, capturing web pages is easier than ever. Turn your favorite websites into images with just one tap.

Learn with Our Tutorials:
Explore our tutorials on CalcaApp.Com to get the most out of all the features and tools available.

Follow me on the Networks:
Ask us for new features from our social networks and get to know them on ApliArte.Com.

Recommended supports:
Use supports recommended by CalcaApp or, failing that, something suitable, such as a glass, a jar or a box, to hold the device horizontally or vertically depending on where you want to make the drawing, but it is important that the device is fixed.

Tips and Recommendations:
Consider using a stand recommended by CalcaApp for a better experience.
Consider choosing a color of your liking for a better user experience.
Consider using relaxing music and make sure you have enough lighting to enjoy the experience.
Remember that CalcaApp is not magic and requires practice. You can find demonstration videos on our website for best results.
IMPORTANT: 
-You must give permission to the camera of your device, to be able to see through it, the image chosen or captured in the area where you are about to draw.
-This app is not magic (It needs practice, there are demonstration videos to see results).
-Your device MUST FOCUS ON THE DRAWING AREA, whether it is paper, wall, floor, etc... FOR ITS CORRECT FUNCTIONING.
-You can search with the app from the web for any drawing to color and thus start practicing.
-You can remove advertising with a point system and at no cost. 
-It does not project the image (For this you need a projector). 
-To avoid autofocus you have to prevent the hand from passing under the camera (It is explained with images in CalcaApp.com). 
-You do not need to register in the app.
-This app is under continuous development, we appreciate and value your comments and suggestions at erbolamm.com or apliarte.com. 
Is there anything else I can help you with?

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| One-year subscription | $2.99 | per year |
| Monthly Advanced Founder Plan | $4.99 | per month |
| Yearly Basic Founder Plan | $49.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Permanent License | $149.99 | one-time |


## Recent user reviews (10 of 50)

All indexed reviews: https://appshunter.io/ios/app/calca-app/id1567655347/reviews.md

### 3/5 — Кошмар

*2026-08-02*

Без подписки ничего нормального не даете, рисовать неудобно, невозможно.

### 5/5 — Это шедевр

*2026-07-02*

Давно искал способ срисовывать рисунок с телефона на экран. Да есть надоедливая реклама, но то что приложение бесплатно на это можно закрыть глаза

### 1/5 — HORROR!

*2026-06-21*

Horror , It's impossible to draw your photos! I click to draw and it gives out what I don't need, namely men and women, a terrible application.

### 4/5 — Рисовать

*2026-06-17*

Благодаря этому приложению научилась рисовать

### 3/5 — Ужас

*2026-06-16*

Сначала приложение хорошо работало идеально но потом прошло 2-3 часа и все .пишет доступ в камере включения но выскакивает фиолетовый ,белый фон! Приложение так себе

### 5/5 — Great

*2026-06-01*

Unlike all the other tracing apps, this one is actually good. It’s free and efficient. Great app.

### 1/5 — А

*2026-04-20*

Ужасное обновление

### 5/5 — Самое лучшее приложение

*2026-03-31*

Всё идеально. Меня всё устраивает. Вот только реклама бесит но если выключить интернет то рекламы не будет

### 5/5 — Хорошее

*2026-03-27*

Приложение хорошее, но есть недостатки их маловато💐

### 5/5 — Лучшие приложения

*2026-02-24*

100 звезд

## Frequently asked questions about Calca app

### What does Calca app do?

Calca app allows you to transfer any image from your device or captured with your camera onto a surface, acting as a camera lucida or projector. This facilitates drawing, tracing, and artistic creations on paper, walls, or other surfaces.

### What are the key features of Calca app?

Key features include image projection for drawing, camera lucida functionality, a 3D effect option, customizable fonts with over 1550 choices, web page capture, and support for multiple languages. Users can also customize colors for inspiration.

### Is Calca app free to use?

The app is currently free for all users, offering access to all features at no cost. However, there are plans for future options that may require points or an active subscription for full, unlocked access.

### What are the system requirements for Calca app?

The app requires permission to access your device's camera to view and project images. While specific operating system versions are not detailed, it is designed for mobile devices that can capture images and display them.

### How can I get the best results with Calca app?

To achieve the best results, it is recommended to use recommended supports to hold your device steady, choose a color you like, ensure good lighting, and consider using relaxing music. The app also emphasizes that practice is required, and demonstration videos are available on their website.

## Version history (last 5 releases)

### 248 — 2026-07-28

Visual and usability improvements to make the app easier to use.
If you run into any issue or have a suggestion, feel free to contact me at erbolamm@gmail.com or directly from the app; I'm the sole developer of this project and your feedback is very important to me.

### 245 — 2026-06-20

New scene background feature! Now you can adjust the scene background of the image to achieve a perfect projection. Additionally, tutorial videos are now available at calcaapp.com to guide you step by step. Thank you very much for your support and feedback!

### 242 — 2026-06-15

New perspective feature! Now you can adjust your images with perspective for a perfect projection. Also, video tutorials are now available at calcaapp.com to guide you step-by-step. Thank you so much for your support and feedback!

### 234 — 2026-05-27

Tutorial improved! You can now resume it whenever you want and earn points along the way, or skip to the beginning if you already feel like a Pro. You can also get help through a 24/7 assistant at calcaapp.com. Thank you so much for your feedback!

### 233 — 2026-05-24

Tutorial improved! You can now resume it whenever you want and earn points along the way, or skip to the beginning if you already feel like a Pro. You can also get help through a 24/7 assistant at calcaapp.com. Thank you so much for your feedback!

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| --- | --- | --- | --- |
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## More apps by Francisco Mateo Marquez

- [Inem Sellar Renovar](https://appshunter.io/ios/app/inem-sellar-renovar/id902527321)
- [Mira quien llama](https://appshunter.io/ios/app/mira-quien-llama/id990577711)
- [Música ApliArte](https://appshunter.io/ios/app/musica-apliarte/id993270084)
- [¿Quieres Ser Feliz?](https://appshunter.io/ios/app/quieres-ser-feliz/id993440870)
- [Como Afinar de oído](https://appshunter.io/ios/app/como-afinar-de-oido/id993493296)
- [Lenguaje no Verbal](https://appshunter.io/ios/app/lenguaje-no-verbal/id1540393330)

All apps by Francisco Mateo Marquez: https://appshunter.io/developer/990577710

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*