String Theory Game vs Ourea's Call
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
String Theory Game
A vibrant puzzle game where you recreate patterns by drawing loops between pegs. Strategically place and overlap loops to match the target design with minimal moves. Offers handcrafted puzzles, daily challenges, and endless free play.
- Pattern matching puzzles
- Loop drawing mechanics
- Color-based loop filling
- 60+ handcrafted puzzles
- Daily challenges
- Free play modes
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String Theory is a colorful puzzle game about matching a given pattern by building it out of different colored shapes. String theory has 60+ handcrafted puzzles, daily challenges, and free play modes, making for hours of fun. Draw lines between pegs to create loops. The loops fill in with a different color depending on how many pegs they touch. Any loop that touches either three pegs or six pegs turns green. Any loop that touches either four pegs or eight pegs turns purple. Any loop that touches either five pegs or seven pegs turns spotted purple. Replicating the given pattern with as few loops as possible requires strategic placement and overlapping of loops. With dozens of handcrafted patterns to match, and thousands additional free play patterns, String Theory is a mind-bending game filled to the brim with tricky puzzles to get the gears turning! No ads, no microtransactions.
Ourea's Call
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**Ourea's Call** isn’t just a game; it’s a way to make a real impact in the world. We’re committed to using a significant portion of profits from In-App Purchases and Ad Revenue to support ocean cleanup efforts (the exact percentage will be determined based on performance Our initial donations will go to non-profit organizations dedicated to cleaning up our oceans, such as [The Ocean Cleanup](https://theoceancleanup.com/updates/) and [Ocean Conservancy](https://oceanconservancy.org/). We’ll share the donated amount each month across our social media platforms, including Facebook, Instagram, and LinkedIn. In addition to supporting this important cause, **Ourea's Call** features a captivating story with full voice acting, allowing players to uncover fascinating scientific facts about the ocean and its diverse inhabitants. Thank you for being part of our team by downloading and playing. A special thanks for helping us restore our oceans! Together, we can make a difference.
Screenshots
Verdict
The clearest difference is in-app purchases: String Theory Game at none against Ourea's Call's 4. String Theory Game also leads on ads (none vs shown) and update cadence (every 2 days vs fortnightly). On price and device support 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
Both are free to download. Ourea's Call sells 4 one-off in-app purchases. String Theory Game asks for nothing beyond the download.
String Theory Game ships an update every 2 days, Ourea's Call fortnightly. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.
| Parameter | String Theory Game | Ourea's Call |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 days — better | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 43 MB | 590 MB |
| Age rating | 4+ | 9+ |
| Developer | Andrew Viesta | Manna Entertainment LLC |
In-app purchases
String Theory Game
No in-app purchases
Ourea's Call
- Fish Food$0.99
- Super Net$1.99
- Trash Magnet$1.99
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- Poseidon's Will$4.99
Questions
Is String Theory Game free?
Is Ourea's Call free?
Do String Theory Game or Ourea's Call have ads?
Which is updated more often, String Theory Game or Ourea's Call?
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