# Calctan vs Comment Blocker

The clearest difference is ads: Comment Blocker at none against Calctan's shown. Comment Blocker also leads on update cadence (every 10 days vs every 3 months). Calctan's advantage is iOS requirement (16.6 vs 26.5). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Calctan sells 1 one-off in-app purchase and Comment Blocker sells 5 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Calctan ships an update every 3 months, Comment Blocker every 10 days. The most recent releases landed on September 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Calctan | Comment Blocker |
| --- | --- | --- |
| Price | Free | Free |
| 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 | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 3 MB |
| Requires iOS | **16.6** | 26.5 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Lozada](https://appshunter.io/developer/421852863) | [Lucas Exequiel Di Tomase](https://appshunter.io/developer/1456307400) |

## 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 |


### Comment Blocker

[App page](https://appshunter.io/ios/app/comment-blocker/id1553084232)

**Features:** Safari Extension, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock app access | $0.99 | per month |
| 1 Month Subscription Plan | $1.99 | per month |
| 6 Months Subscription Plan | $4.99 | per 6 months |
| Custom Rules | $4.99 | per month |
| 1 Year Subscription Plan | $9.99 | per year |


## Frequently asked questions

### Is Calctan free?

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

### Is Comment Blocker free?

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

### Do Calctan or Comment Blocker have ads?

Calctan shows ads; Comment Blocker does not.

### Which is updated more often, Calctan or Comment Blocker?

Calctan ships an update every 3 months, and Comment Blocker every 10 days. Most recently, Calctan was updated on September 25, 2026 and Comment Blocker on October 12, 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.*