Comparison

Plastic Swim vs Summon Worlds

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Plastic Swim

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
Read full description

Plastic Swim is an AR experience to raise awareness about the toll of plastics on the environment. The player begins by overlaying a lakeside terrain over their current location through their smart phone. While interacting with the app, the viewer will find themselves in a glimmering but treacherous game, swiping through an aquatic world dense with plastic. When they have accumulated enough information about plastic consumption by interacting with illuminating debris they can resurface buoyed by the specifics of their newly acquired environmental awareness.

About

Summon Worlds

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
Read full description

Build a fantasy world you can organize, visualize, and actually explore. Summon Worlds brings worldbuilding, character creation, and AI roleplaying together for writers, worldbuilders, game masters, and tabletop RPG players. Create connected characters, Creatures, locations, maps, and lore, then explore your setting through character chat and interactive adventures. Free to start, with optional in-app purchases. No ads, ever. BUILD A CONNECTED WORLD Create characters, Creatures, locations, factions, weapons, items, spells, and lore. Connect the people, places, and ideas behind your stories so you can keep building without scattering everything across separate notes. Use custom categories to organize your creations your way, and customize how your world is presented. MAP THE PLACES YOU IMAGINE Create and edit maps with the World Map editor. Give your fantasy setting a visual home alongside its characters, locations, and history. DEVELOP CHARACTERS AND RELATIONSHIPS Build character profiles with backstories, personalities, classes, alignments, stats, and artwork. Define friendships, rivalries, romances, family bonds, and alliances. Keep these connections alongside the lore that gives them meaning. Chat with your characters to explore their voices, personalities, relationships, and story possibilities. CREATE WITH AI Generate artwork and visual references for your characters, locations, and worlds. Develop names, descriptions, backstories, and lore when you want help moving an idea forward. Choose from AI models for image generation, character chat, and adventures while shaping the results around your creative vision. STEP INSIDE WITH ADVENTURE MODE Play as one of your characters in an interactive, AI-guided RPG adventure. An AI game master narrates the story, responds to your decisions, and draws from your world's characters, locations, relationships, and lore. Explore an open-ended adventure or begin with a structured quest, premise, and goal. Adjust story pacing, response length, and suggested actions to suit the experience you want. BUILD SOLO OR COLLABORATE Develop your world privately, publish creations when you're ready, or invite collaborators into a Shared World to build together. Explore worlds and creations from the community for inspiration. MADE FOR YOUR NEXT STORY Plan a fantasy novel, prepare a tabletop campaign, develop an original character, or explore a world of your own creation. Keep your ideas connected as your universe grows. Download Summon Worlds and start building your next world. Discord: https://discord.com/invite/XXseerhc2u TikTok: https://www.tiktok.com/@summonworlds YouTube: https://www.youtube.com/@summonworlds Questions or feedback? support@summonworlds.com Terms of Use: https://terms.summonworlds.com/ Privacy Policy: https://privacy.summonworlds.com/

Screenshots

Plastic Swim3 screens
Summon Worlds4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard5 real differences · 5 level
Plastic Swim versus Summon Worlds: the parameters behind the verdict, then further details
ParameterPlastic SwimSummon Worlds
PriceFreeFree
Rating5.0 (1 ratings) — better4.5 (365 ratings)
Positive reviews—73.0% of reviews
Number of ratings1365 — better
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size295 MB137 MB
Age rating4+12+
DeveloperMeredith StarrOPENFORGE LLC

Customer experience

Plastic Swim

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Summon Worlds

All ratings365 ratings
Positive87.9%
Neutral3.6%
Negative8.5%
Written reviews111 reviews
Positive73.0%
Neutral6.3%
Negative20.7%

Bugs and requests

Plastic Swim

Not enough reviews yet to summarise bugs or requests.

Summon Worlds

Reported bugs

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

Requested features

7 requests
  • 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
Show 2 more
  • Improve AI memory and consistency
  • Provide desktop/web version

In-app purchases

None

Plastic Swim

No in-app purchases

9 purchases

Summon Worlds

Subscriptions5
  • Summon Worlds Pro (Monthly)$9.991 Month
  • Summon Worlds Pro7 Days trial$9.991 Month
  • Summon Worlds Pro$9.991 Month
Show 2 more
  • Summon Worlds Ultra$19.991 Month
  • Summon Worlds Pro (Annual)$59.991 Year
One-time4
  • Mana Refill 300$2.99
  • Mana Refill$4.99
  • Mana Refill 1200$9.99
Show 1 more
  • Mana Refill 2600$19.99

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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