# Calctan vs High Precision Calc

The clearest difference is price: Calctan at Free against High Precision Calc's $1.99. High Precision Calc's advantage is in-app purchases (none vs 1) and ads (none vs shown).

Calctan is free to download; High Precision Calc costs $1.99 up front. Calctan sells 1 one-off in-app purchase. High Precision Calc asks for nothing beyond the download.

Calctan ships an update every 3 months, High Precision Calc fortnightly. The most recent releases landed on October 11, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Calctan | High Precision Calc |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.5 (61 ratings)](https://appshunter.io/ios/app/calctan/id1445480535/reviews)** | — |
| Number of ratings | **61** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 37 MB |
| Requires iOS | 16.6 | **13** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Lozada](https://appshunter.io/developer/421852863) | [嘉欣 胡](https://appshunter.io/developer/1640395440) |

## 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 |


### High Precision Calc

[App page](https://appshunter.io/ios/app/high-precision-calc/id6461723260)

**In-app purchases:** none


## Frequently asked questions

### Is Calctan free?

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

### Is High Precision Calc free?

High Precision Calc costs $1.99, with no in-app purchases.

### Do Calctan or High Precision Calc have ads?

Calctan shows ads; High Precision Calc does not.

### Which is updated more often, Calctan or High Precision Calc?

Calctan ships an update every 3 months, and High Precision Calc fortnightly. Most recently, Calctan was updated on October 11, 2026 and High Precision Calc on October 21, 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.*