# Happy Deads vs ez Math

The clearest difference is in-app purchases: ez Math at none against Happy Deads's 10. ez Math also leads on rating (5.0 vs 4.7). Happy Deads's advantage is ratings volume (78 vs 1) and iOS requirement (9.0 vs 15.6). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Happy Deads sells 10 in-app purchases, starting at $4.99 per 7 days. ez Math asks for nothing beyond the download.

ez Math holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Happy Deads has 78 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 29, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Happy Deads | ez Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (78 ratings)](https://appshunter.io/ios/app/happy-deads/id1378548302/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ez-math-learn-faster/id1624014619/reviews)** |
| Number of ratings | **78** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | Freemium | **Free** |
| Size | 64 MB | 19 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Picsoft Co., Ltd.](https://appshunter.io/developer/453447825) | [Pham Huu Phuong](https://appshunter.io/developer/1447471853) |

## What reviewers say

### Happy Deads

[App page](https://appshunter.io/ios/app/happy-deads/id1378548302)

Engage in a fun, casual zombie apocalypse with simple tap controls. Survive levels, achieve high scores, and collect coins to upgrade weapons and characters. Unlock new abilities and battle through a variety of zombie types.

**Highlights:** 30 levels with varied zombies, Over 300 missions, 20 characters with unique abilities, Numerous weapons and costumes, Simple tap controls, Coin collection for upgrades

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diamond Membership (Weekly) | $4.99 | per 7 days |
| Pinch of Gems | $0.99 | one-time |
| Pinch of Coins | $0.99 | one-time |
| Starter Pack | $0.99 | one-time |
| Baseball Bat | $0.99 | one-time |
| Gold Pistol | $1.99 | one-time |
| Mjolnir | $2.99 | one-time |
| Thor | $2.99 | one-time |
| Alien Blaster | $3.99 | one-time |
| Ultimate Gauntlet | $4.99 | one-time |


### ez Math

[App page](https://appshunter.io/ios/app/ez-math-learn-faster/id1624014619)

This game sharpens your mental math skills with various modes and difficulty levels. It offers quick challenges to improve calculation speed in an engaging way.

**Highlights:** Fast calculation training, Multiple game modes, Adjustable difficulty levels, Customizable challenges, Easy to learn gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Happy Deads free?

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

### Is ez Math free?

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

### Which has better reviews, Happy Deads or ez Math?

ez Math is rated higher. Happy Deads averages 4.7 out of 5 from 78 ratings, while ez Math averages 5.0 from 1 ratings.

### Do Happy Deads or ez Math have ads?

Neither Happy Deads nor ez Math shows ads.

### Which is updated more often, Happy Deads or ez Math?

Happy Deads ships an update every 3 days, and ez Math every 3 days. Most recently, Happy Deads was updated on October 29, 2026 and ez Math on October 19, 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.*