# Level HD. vs Calctan

The clearest difference is review sentiment: Level HD. at 84% against Calctan's 29%. Level HD. also leads on in-app purchases (none vs 1) and ads (none vs shown). Calctan's advantage is price (Free vs $0.99). On ratings volume, update cadence and device support there is nothing between them.

Calctan is free to download; Level HD. costs $0.99 up front. Calctan sells 1 one-off in-app purchase. Level HD. asks for nothing beyond the download.

Level HD. holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 84 and 61 respectively. Written reviews point the same way: 84% of Level HD.'s written reviews are positive against 29% of Calctan's.

Level HD. ships an update every 4 months, Calctan every 3 months. The most recent releases landed on October 19, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Level HD. | Calctan |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.9 (84 ratings)](https://appshunter.io/ios/app/level-hd/id510249014/reviews)** | [4.5 (61 ratings)](https://appshunter.io/ios/app/calctan/id1445480535/reviews) |
| Number of ratings | **84** | 61 |
| Positive reviews | **83.7% of reviews** | 28.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 11 MB |
| Requires iOS | **7.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Jorge Lozada](https://appshunter.io/developer/421852863) |

## What reviewers say

### Level HD.

[App page](https://appshunter.io/ios/app/level-hd/id510249014)

This utility app functions as a digital carpenter's level, providing accurate measurements for various tasks. It is compatible with both iPhone and iPad devices.

**Highlights:** Carpenter's level, iPhone support, iPad support, URL scheme integration

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Level HD. free?

Level HD. costs $0.99, with no in-app purchases.

### Is Calctan free?

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

### Which has better reviews, Level HD. or Calctan?

Level HD. is rated higher. Level HD. averages 4.9 out of 5 from 84 ratings, while Calctan averages 4.5 from 61 ratings.

### Do Level HD. or Calctan have ads?

Calctan shows ads; Level HD. does not.

### Which is updated more often, Level HD. or Calctan?

Level HD. ships an update every 4 months, and Calctan every 3 months. Most recently, Level HD. was updated on October 19, 2026 and Calctan on October 11, 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.*