# Terrific Triangle vs calculets PRO

The clearest difference is review sentiment: Terrific Triangle at 67% against calculets PRO's 0%. Terrific Triangle also leads on price (Free vs $0.99) and ratings volume (5 vs 1). calculets PRO's advantage is rating (5.0 vs 4.0) and update cadence (every 4 months vs every 10 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Terrific Triangle is free to download; calculets PRO costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

calculets PRO holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Terrific Triangle has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 67% of Terrific Triangle's written reviews are positive against 0% of calculets PRO's, so the app with the better star average is not the one people write more warmly about.

Terrific Triangle ships an update every 10 months, calculets PRO every 4 months. The most recent releases landed on October 1, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Terrific Triangle | calculets PRO |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.0 (5 ratings)](https://appshunter.io/ios/app/terrific-triangle/id1341995236/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calculets-pro-math-game/id1439946398/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | **Free** | Paid |
| Size | 32 MB | 10 MB |
| Requires iOS | **12.0.0** | 12.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Elementary Software](https://appshunter.io/developer/525377644) | [Jaime C. Carriedo](https://appshunter.io/developer/785723408) |

## What reviewers say

### Terrific Triangle

[App page](https://appshunter.io/ios/app/terrific-triangle/id1341995236)

Practice math fact families for addition, subtraction, multiplication, and division. This educational tool offers individual fact practice with a score and adjustable difficulty, including an optional timer. It's a free, ad-free way to master number relationships.

**Highlights:** Fact family practice, Addition/subtraction drills, Multiplication/division drills, Adjustable difficulty, Optional timer, Running score

**Features:** macOS Compatibility

**In-app purchases:** none


### calculets PRO

[App page](https://appshunter.io/ios/app/calculets-pro-math-game/id1439946398)

A straightforward math game designed to help users practice basic arithmetic operations like addition, subtraction, multiplication, and division. Players combine numbers to reach a target number, offering a fun way to improve foundational math skills.

**Highlights:** Practice addition, subtraction, multiplication, division, Combine numbers to reach a target, Undo operations feature, Multiple difficulty levels, Ad-free experience

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

**In-app purchases:** none


## Frequently asked questions

### Is Terrific Triangle free?

Terrific Triangle is free to download, with no in-app purchases.

### Is calculets PRO free?

calculets PRO costs $0.99, with no in-app purchases.

### Which has better reviews, Terrific Triangle or calculets PRO?

calculets PRO is rated higher. Terrific Triangle averages 4.0 out of 5 from 5 ratings, while calculets PRO averages 5.0 from 1 ratings.

### Do Terrific Triangle or calculets PRO have ads?

Neither Terrific Triangle nor calculets PRO shows ads.

### Which is updated more often, Terrific Triangle or calculets PRO?

Terrific Triangle ships an update every 10 months, and calculets PRO every 4 months. Most recently, Terrific Triangle was updated on October 1, 2026 and calculets PRO 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.*