# Platform Defense vs Krill Keeper

The clearest difference is in-app purchases: Krill Keeper at none against Platform Defense's 11. Krill Keeper also leads on rating (5.0 vs 4.6). Platform Defense's advantage is ads (none vs shown) and ratings volume (29 vs 7). On price, update cadence and device support there is nothing between them.

Both are free to download. Platform Defense sells 11 one-off in-app purchases. Krill Keeper asks for nothing beyond the download.

Krill Keeper holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 29 and 7 respectively.

Platform Defense ships an update every 2 weeks, Krill Keeper every 9 days. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Platform Defense | Krill Keeper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (29 ratings)](https://appshunter.io/ios/app/platform-defense/id1046407019/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/krill-keeper/id6759456112/reviews)** |
| Number of ratings | **29** | 7 |
| Positive reviews | 80.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 44 MB | 68 MB |
| Requires iOS | **6.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [ParkPill](https://appshunter.io/developer/453176048) | [Nante Studio](https://appshunter.io/developer/1700809099) |

## What reviewers say

### Platform Defense

[App page](https://appshunter.io/ios/app/platform-defense/id1046407019)

Defend against waves of monsters by strategically placing traps and utilizing special heroes. Survive 100 levels of elemental challenges.

**Highlights:** Unlockable special heroes, Variety of traps to deploy, Unique elemental monsters, 100 waves of defense, Strategic trap placement

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Coin | $0.99 | one-time |
| Bree | $0.99 | one-time |
| Tom | $0.99 | one-time |
| Remove Ads/Double Coin | $0.99 | one-time |
| Middle Coin | $1.99 | one-time |
| Andrew | $1.99 | one-time |
| Blue Stars | $1.99 | one-time |
| Big Coin | $4.99 | one-time |
| Unlock All Heroes | $4.99 | one-time |
| Unlock All Friends | $5.99 | one-time |
| Huge Coin | $9.99 | one-time |


### Krill Keeper

[App page](https://appshunter.io/ios/app/krill-keeper/id6759456112)

A relaxing simulation game where you nurture a deep-sea krill colony. Feed and clean your krill, hatch eggs to expand your colony, and discover 20 unique variants. Enjoy peaceful gameplay with realistic flocking physics and beautiful dark visuals.

**Highlights:** Realistic krill swarm simulation, Feed and clean krill, Hatch new krill companions, Collect 20 krill variants, Discover rare variants, Deep-sea dark palette visuals

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

**In-app purchases:** none


## Frequently asked questions

### Is Platform Defense free?

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

### Is Krill Keeper free?

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

### Which has better reviews, Platform Defense or Krill Keeper?

Krill Keeper is rated higher. Platform Defense averages 4.6 out of 5 from 29 ratings, while Krill Keeper averages 5.0 from 7 ratings.

### Do Platform Defense or Krill Keeper have ads?

Krill Keeper shows ads; Platform Defense does not.

### Which is updated more often, Platform Defense or Krill Keeper?

Platform Defense ships an update every 2 weeks, and Krill Keeper every 9 days. Most recently, Platform Defense was updated on October 20, 2026 and Krill Keeper on October 7, 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.*