# Doctor Lowhigh vs Calculuz

The clearest difference is price: Calculuz at Free against Doctor Lowhigh's $0.99. Calculuz also leads on rating (5.0 vs 4.4) and update cadence (every 6 days vs every 56 months). Doctor Lowhigh's advantage is in-app purchases (none vs 7) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Calculuz is free to download; Doctor Lowhigh costs $0.99 up front. Calculuz sells 7 one-off in-app purchases. Doctor Lowhigh asks for nothing beyond the download.

Calculuz holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 10 and 3 respectively.

Doctor Lowhigh ships an update every 56 months, Calculuz every 6 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Doctor Lowhigh | Calculuz |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.4 (10 ratings)](https://appshunter.io/ios/app/doctor-lowhigh/id876998884/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/calculuz-learning-math-game/id6443721522/reviews)** |
| Number of ratings | **10** | 3 |
| Positive reviews | 68.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 56 months | **Every 6 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 27 MB | 82 MB |
| Requires iOS | 13 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oddrobo Software AB](https://appshunter.io/developer/423545647) | [Bad Rhino ApS](https://appshunter.io/developer/1053234944) |

## What reviewers say

### Doctor Lowhigh

[App page](https://appshunter.io/ios/app/doctor-lowhigh/id876998884)

An addictive numbers game where you order various values from lowest to highest. It tests your ability to sort numbers, dice, coins, and more, with increasing difficulty and speed. Earn medals and compare scores globally.

**Highlights:** Order various values, Increasing difficulty, Speed challenges, Medal system, Global score comparison, 20 extra challenges

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

**In-app purchases:** none


### Calculuz

[App page](https://appshunter.io/ios/app/calculuz-learning-math-game/id6443721522)

A challenging math puzzle game where you fill in missing numbers in formulas. Progress through increasing difficulty levels, use power-ups, and compete for high scores. Tests arithmetic skills with timed challenges.

**Highlights:** Fill missing numbers in formulas, Progressive difficulty levels, Timed challenges, Power-ups available, Highscore lists for competition, Multiple formula collections

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 lifes | $0.99 | one-time |
| 25 lifes | $1.99 | one-time |
| 50 lifes | $2.99 | one-time |
| 100 lifes | $5.99 | one-time |
| 250 lifes | $9.99 | one-time |
| 500 lifes | $17.99 | one-time |
| 1000 lifes | $22.99 | one-time |


## Frequently asked questions

### Is Doctor Lowhigh free?

Doctor Lowhigh costs $0.99, with no in-app purchases.

### Is Calculuz free?

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

### Which has better reviews, Doctor Lowhigh or Calculuz?

Calculuz is rated higher. Doctor Lowhigh averages 4.4 out of 5 from 10 ratings, while Calculuz averages 5.0 from 3 ratings.

### Do Doctor Lowhigh or Calculuz have ads?

Calculuz shows ads; Doctor Lowhigh does not.

### Which is updated more often, Doctor Lowhigh or Calculuz?

Doctor Lowhigh ships an update every 56 months, and Calculuz every 6 days. Most recently, Doctor Lowhigh was updated on November 1, 2026 and Calculuz on November 3, 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.*