# World for Two vs Parasite Days

The clearest difference is rating: Parasite Days at 5.0 against World for Two's 4.4. Parasite Days also leads on review sentiment (98% vs 82%) and ratings volume (218 vs 25). World for Two's advantage is ads (none vs shown) and update cadence (every 5 days vs fortnightly). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. World for Two sells 3 one-off in-app purchases and Parasite Days sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Parasite Days holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Parasite Days has 218 ratings behind it against 25, so its average is the more settled of the two. Written reviews point the same way: 82% of World for Two's written reviews are positive against 98% of Parasite Days's.

World for Two ships an update every 5 days, Parasite Days fortnightly. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | World for Two | Parasite Days |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (25 ratings)](https://appshunter.io/ios/app/world-for-two/id1465449477/reviews) | **[5.0 (218 ratings)](https://appshunter.io/ios/app/parasite-days/id1521417111/reviews)** |
| Number of ratings | 25 | **218** |
| Positive reviews | 82.1% of reviews | **97.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 108 MB | 126 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Seventh rank Inc.](https://appshunter.io/developer/408148416) | [zxima.LLC](https://appshunter.io/developer/714594983) |

## What reviewers say

### World for Two

[App page](https://appshunter.io/ios/app/world-for-two/id1465449477)

In a post-apocalyptic world where all life has perished, a lone scientist and a newly created android embark on a journey to recreate life. Explore a desolate yet beautiful landscape while gathering energy and discovering the secrets of this new beginning.

**Highlights:** Post-apocalyptic setting, Life creation gameplay, Exploration of a desolate world, Story-driven narrative, Unique character duo

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 支援1 | $2.99 | one-time |
| 支援2 | $4.99 | one-time |
| 支援3 | $5.99 | one-time |


### Parasite Days

[App page](https://appshunter.io/ios/app/parasite-days/id1521417111)

Awaken with a strange creature on your arm in this unique adventure game. Decide whether to fight the parasite or succumb to its draining effects. Manage your health, discover food combos, and make choices that lead to multiple endings.

**Highlights:** Parasite-purging adventure, Health management, Food combo discovery, Simple controls, Multiple endings, Choice-driven narrative

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Laser Threader | $0.99 | one-time |
| Life Enforcer | $0.99 | one-time |
| Rewarded Ads Off | $1.99 | one-time |
| Donate | $2.99 | one-time |


## Frequently asked questions

### Is World for Two free?

World for Two is free to download, with in-app purchases available.

### Is Parasite Days free?

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

### Which has better reviews, World for Two or Parasite Days?

Parasite Days is rated higher. World for Two averages 4.4 out of 5 from 25 ratings, while Parasite Days averages 5.0 from 218 ratings.

### Do World for Two or Parasite Days have ads?

Parasite Days shows ads; World for Two does not.

### Which is updated more often, World for Two or Parasite Days?

World for Two ships an update every 5 days, and Parasite Days fortnightly. Most recently, World for Two was updated on September 23, 2026 and Parasite Days on September 25, 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.*