# Plastic Swim vs Summon Worlds

The clearest difference is rating: Plastic Swim at 5.0 against Summon Worlds's 4.5. Plastic Swim also leads on in-app purchases (none vs 9) and update cadence (every 6 days vs every 3 weeks). Summon Worlds's advantage is ratings volume (365 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Summon Worlds sells 9 in-app purchases, starting at $9.99 per month. Plastic Swim asks for nothing beyond the download.

Plastic Swim holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Summon Worlds has 365 ratings behind it against 1, so its average is the more settled of the two.

Plastic Swim ships an update every 6 days, Summon Worlds every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Plastic Swim | Summon Worlds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/plastic-swim/id1571502145/reviews)** | [4.5 (365 ratings)](https://appshunter.io/ios/app/summon-worlds-worldbuilder/id1667442517/reviews) |
| Number of ratings | 1 | **365** |
| Positive reviews | — | 73.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 295 MB | 137 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Meredith Starr](https://appshunter.io/developer/1571502147) | [OPENFORGE LLC](https://appshunter.io/developer/1421846153) |

## What reviewers say

### Plastic Swim

[App page](https://appshunter.io/ios/app/plastic-swim/id1571502145)

Experience an augmented reality world to understand the impact of plastic pollution. Navigate a treacherous aquatic environment, collect information on plastic consumption, and emerge with greater environmental awareness.

**Highlights:** Augmented reality experience, Environmental awareness focus, Interactive aquatic world, Information on plastic consumption, Lakeside terrain overlay

**Features:** macOS Compatibility

**In-app purchases:** none


### Summon Worlds

[App page](https://appshunter.io/ios/app/summon-worlds-worldbuilder/id1667442517)

Build, visualize, and explore your own fantasy worlds. Create interconnected characters, locations, and lore, then bring them to life through AI-powered chat and interactive adventures. Collaborate with others or develop your universe solo.

**Highlights:** Connected worldbuilding, Interactive map editor, Detailed character development, AI art and lore generation, AI-guided RPG adventures, Solo and collaborative building, Community world exploration

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Summon Worlds Pro (Monthly) | $9.99 | per month |
| Summon Worlds Pro | $9.99 | per month |
| Summon Worlds Pro | $9.99 | per month |
| Summon Worlds Ultra | $19.99 | per month |
| Summon Worlds Pro (Annual) | $59.99 | per year |
| Mana Refill 300 | $2.99 | one-time |
| Mana Refill | $4.99 | one-time |
| Mana Refill 1200 | $9.99 | one-time |
| Mana Refill 2600 | $19.99 | one-time |

**What reviewers like**

- 🚀 Great for character creation
- 👍 Engaging community
- 👍 Constant feature scaling
- 👍 Supports creativity
- 👍 Detailed character and world generation

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 💰 Paywalling of previously free features
- 🔒 Strict account creation requirements
- 🔒 Difficulty accessing daily mana
- 🔒 Limitations on free usage

**Reported bugs**

- Inability to create new characters
- Login and account creation issues
- Inconsistent AI responses and behavior
- Incorrect item/weapon generation for characters

**Requested features**

- Ability to edit and delete existing characters
- Increase in free daily mana or message limits
- Option to create group chats or campaigns
- Expand world and event generation capabilities
- Add more anime/manga character references


## Frequently asked questions

### Is Plastic Swim free?

Plastic Swim is free to download, with no in-app purchases.

### Is Summon Worlds free?

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

### Which has better reviews, Plastic Swim or Summon Worlds?

Plastic Swim is rated higher. Plastic Swim averages 5.0 out of 5 from 1 ratings, while Summon Worlds averages 4.5 from 365 ratings.

### Do Plastic Swim or Summon Worlds have ads?

Neither Plastic Swim nor Summon Worlds shows ads.

### Which is updated more often, Plastic Swim or Summon Worlds?

Plastic Swim ships an update every 6 days, and Summon Worlds every 3 weeks. Most recently, Plastic Swim was updated on November 3, 2026 and Summon Worlds on November 3, 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.*