# Tengai vs Mathifyx

The clearest difference is in-app purchases: Mathifyx at none against Tengai's 5. Mathifyx also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.6). On price and device support there is nothing between them.

Both are free to download. Tengai sells 5 one-off in-app purchases. Mathifyx asks for nothing beyond the download.

## The numbers

| Metric | Tengai | Mathifyx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mathifyx-slice-the-answer/id6758725556/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Monetization | — | Free |
| Size | 41 MB | 117 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [kmbox](https://appshunter.io/developer/1416505479) | [Novende LTD](https://appshunter.io/developer/968085428) |

## What reviewers say

### Tengai

[App page](https://appshunter.io/ios/app/tengai-psikyo/id6744021030)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tengai 100 dia purchase | $0.99 | one-time |
| Tengai 500 dia purchase | $4.99 | one-time |
| Tengai 1100 dia purchase | $9.99 | one-time |
| Tengai 6500 dia purchase | $49.99 | one-time |
| Tengai 13500 dia purchase | $99.99 | one-time |


### Mathifyx

[App page](https://appshunter.io/ios/app/mathifyx-slice-the-answer/id6758725556)

A fast-paced arcade-style game that challenges your reflexes with quick math problems. Solve addition, subtraction, and mixed operations under time pressure to train your mental calculation and quick thinking.

**Highlights:** Fast math challenges, Addition and subtraction problems, Mixed math operations, Reflex-based gameplay, Mental math training, Quick play sessions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tengai free?

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

### Is Mathifyx free?

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

### Do Tengai or Mathifyx have ads?

Tengai shows ads; Mathifyx does not.

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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.*