# Hamster vs Taco vs MENTAL STAR

The clearest difference is update cadence: MENTAL STAR at every 2 days against Hamster vs Taco's every 6 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Hamster vs Taco sells 1 one-off in-app purchase and MENTAL STAR sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Hamster vs Taco ships an update every 6 days, MENTAL STAR every 2 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | Hamster vs Taco | MENTAL STAR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/hamster-vs-taco-math-game/id6670690323/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 2 days** |
| Monetization | Free | — |
| Size | 6 MB | 23 MB |
| Requires iOS | **16.0** | 17.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LearnEd Apps LLC](https://appshunter.io/developer/1629989466) | [Sasagawa Yoshihiro](https://appshunter.io/developer/1475074070) |

## What reviewers say

### Hamster vs Taco

[App page](https://appshunter.io/ios/app/hamster-vs-taco-math-game/id6670690323)

Engage in a fun, space-themed game to master double-digit addition and subtraction.  Defeat incoming invaders by solving math problems to power up your defenses and advance through levels.

**Highlights:** Double-digit addition practice, Double-digit subtraction practice, Space-themed gameplay, Level-based progression, Enemy invaders, Power-up mechanics

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $3.99 | one-time |


### MENTAL STAR

[App page](https://appshunter.io/ios/app/mental-star/id6742699982)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FASTER and SLOWER | $5.99 | one-time |
| NO ADS | $9.99 | one-time |
| MORE WORDS in NEW and EDIT | $19.99 | one-time |


## Frequently asked questions

### Is Hamster vs Taco free?

Hamster vs Taco is free to download, with in-app purchases available.

### Is MENTAL STAR free?

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

### Do Hamster vs Taco or MENTAL STAR have ads?

Neither Hamster vs Taco nor MENTAL STAR shows ads.

### Which is updated more often, Hamster vs Taco or MENTAL STAR?

Hamster vs Taco ships an update every 6 days, and MENTAL STAR every 2 days. Most recently, Hamster vs Taco was updated on October 30, 2026 and MENTAL STAR on October 30, 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.*