# Calctan vs Octofile 3

The clearest difference is rating: Octofile 3 at 5.0 against Calctan's 4.5. Octofile 3 also leads on in-app purchases (none vs 1) and ads (none vs shown). Calctan's advantage is ratings volume (61 vs 3). On price and update cadence there is nothing between them.

Both are free to download. Calctan sells 1 one-off in-app purchase. Octofile 3 asks for nothing beyond the download.

Octofile 3 holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Calctan has 61 ratings behind it against 3, so its average is the more settled of the two.

Calctan ships an update every 3 months, Octofile 3 every 5 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Calctan | Octofile 3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (61 ratings)](https://appshunter.io/ios/app/calctan/id1445480535/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/octofile-3/id6475046066/reviews)** |
| Number of ratings | **61** | 3 |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 11 MB | 35 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Jorge Lozada](https://appshunter.io/developer/421852863) | [Syncto, Inc.](https://appshunter.io/developer/1462608348) |

## What reviewers say

### Calctan

[App page](https://appshunter.io/ios/app/calctan/id1445480535)

This sophisticated calculator app offers a minimalist design with advanced mathematical functions and extensive personalization options. It seamlessly syncs across devices and includes multitasking features for enhanced productivity.

**Highlights:** Intuitive minimalist design, 100+ customizable themes, 47 advanced mathematical functions, Automatic calculation history, iCloud sync across devices, Split Screen and Swipe Mode multitasking, Share calculations easily

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $9.99 | one-time |


### Octofile 3

[App page](https://appshunter.io/ios/app/octofile-3/id6475046066)

Easily transfer files across all your devices with rich compatibility and a fast sharing method. Enjoy secure, private data protection with end-to-end encryption and experience smooth, stable transfers for large media files.

**Highlights:** Full platform support, Rich file type compatibility, Fast sharing method, End-to-end encryption, Fast and stable transfers, Superior performance

**In-app purchases:** none


## Frequently asked questions

### Is Calctan free?

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

### Is Octofile 3 free?

Octofile 3 is free to download, with no in-app purchases.

### Which has better reviews, Calctan or Octofile 3?

Octofile 3 is rated higher. Calctan averages 4.5 out of 5 from 61 ratings, while Octofile 3 averages 5.0 from 3 ratings.

### Do Calctan or Octofile 3 have ads?

Calctan shows ads; Octofile 3 does not.

### Which is updated more often, Calctan or Octofile 3?

Calctan ships an update every 3 months, and Octofile 3 every 5 months. Most recently, Calctan was updated on October 24, 2026 and Octofile 3 on October 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.*