# Terrific Triangle vs attentio Content Filter

The clearest difference is in-app purchases: Terrific Triangle at none against attentio Content Filter's 1. Terrific Triangle also leads on iOS requirement (12.0.0 vs 16.0). attentio Content Filter's advantage is update cadence (every 3 months vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. attentio Content Filter sells 1 in-app purchase, starting at $6.99 per month. Terrific Triangle asks for nothing beyond the download.

Terrific Triangle ships an update every 10 months, attentio Content Filter every 3 months. The most recent releases landed on June 1, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Terrific Triangle | attentio Content Filter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/terrific-triangle/id1341995236/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 32 MB | 23 MB |
| Requires iOS | **12.0.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Elementary Software](https://appshunter.io/developer/525377644) | [EasyQuant UG (haftungsbeschrnkt)](https://appshunter.io/developer/1633277242) |

## 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


### attentio Content Filter

[App page](https://appshunter.io/ios/app/attentio-content-filter/id6673885163)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monk Mode Monthly Subscription | $6.99 | per month |


## Frequently asked questions

### Is Terrific Triangle free?

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

### Is attentio Content Filter free?

attentio Content Filter is free to download, with in-app purchases available.

### Do Terrific Triangle or attentio Content Filter have ads?

Neither Terrific Triangle nor attentio Content Filter shows ads.

### Which is updated more often, Terrific Triangle or attentio Content Filter?

Terrific Triangle ships an update every 10 months, and attentio Content Filter every 3 months. Most recently, Terrific Triangle was updated on June 1, 2026 and attentio Content Filter on September 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.*