# Zombie Defend vs Integer

The clearest difference is update cadence: Integer at every 3 weeks against Zombie Defend's every 23 months. Zombie Defend's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Zombie Defend sells 10 one-off in-app purchases and Integer sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Zombie Defend ships an update every 23 months, Integer every 3 weeks. The most recent releases landed on October 27, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Zombie Defend | Integer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/integer-daily-math-challenge/id6803514940/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 143 MB | 51 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [Daud Amin](https://appshunter.io/developer/1590365739) | [MIMANSHA MAYANKBHAI BRAHMBHATT](https://appshunter.io/developer/1896021974) |

## What reviewers say

### Zombie Defend

[App page](https://appshunter.io/ios/app/zombie-defend-home-survival/id1611739709)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get 220 coins | $1.99 | one-time |
| Get Small Pack Offer | $1.99 | one-time |
| Get 660 Coins | $2.99 | one-time |
| Remove All Annoying Ads | $2.99 | one-time |
| Get 1200 Coins | $3.99 | one-time |
| Unlock All Levels | $4.99 | one-time |
| Get Medium Pack Offers | $4.99 | one-time |
| Unlock All Guns | $6.99 | one-time |
| Get Extra Pack Special Offer | $9.99 | one-time |
| Unlock Everything (15% Off) | $14.99 | one-time |


### Integer

[App page](https://appshunter.io/ios/app/integer-daily-math-challenge/id6803514940)

This app transforms math practice into an engaging game with daily riddles and quick challenges. It offers bite-sized rounds, adaptive difficulty, and progress tracking to keep users motivated. Designed for all levels, it focuses on making learning enjoyable and effective.

**Highlights:** Daily math riddles and challenges, Bite-sized rounds (60 seconds or less), Adaptive difficulty levels, Streak and XP tracking, Covers addition, subtraction, multiplication, division, Privacy-focused, no account required

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $19.99 | per year |
| Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Zombie Defend free?

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

### Is Integer free?

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

### Do Zombie Defend or Integer have ads?

Neither Zombie Defend nor Integer shows ads.

### Which is updated more often, Zombie Defend or Integer?

Zombie Defend ships an update every 23 months, and Integer every 3 weeks. Most recently, Zombie Defend was updated on October 27, 2026 and Integer on October 29, 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.*