# String Theory Game vs Ourea's Call

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.

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.

## The numbers

| Metric | String Theory Game | Ourea's Call |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/string-theory-game/id6479223958/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | Free | — |
| Size | 43 MB | 590 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Andrew Viesta](https://appshunter.io/developer/1735241726) | [Manna Entertainment LLC](https://appshunter.io/developer/1513392829) |

## What reviewers say

### String Theory Game

[App page](https://appshunter.io/ios/app/string-theory-game/id6479223958)

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.

**Highlights:** Pattern matching puzzles, Loop drawing mechanics, Color-based loop filling, 60+ handcrafted puzzles, Daily challenges, Free play modes

**Features:** macOS Compatibility

**In-app purchases:** none


### Ourea's Call

[App page](https://appshunter.io/ios/app/oureas-call/id6642713097)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fish Food | $0.99 | one-time |
| Super Net | $1.99 | one-time |
| Trash Magnet | $1.99 | one-time |
| Poseidon's Will | $4.99 | one-time |


## Frequently asked questions

### Is String Theory Game free?

String Theory Game is free to download, with no in-app purchases.

### Is Ourea's Call free?

Ourea's Call is free to download, with in-app purchases available.

### Do String Theory Game or Ourea's Call have ads?

Ourea's Call shows ads; String Theory Game does not.

### Which is updated more often, String Theory Game or Ourea's Call?

String Theory Game ships an update every 2 days, and Ourea's Call fortnightly. Most recently, String Theory Game was updated on October 9, 2026 and Ourea's Call on October 10, 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.*