# Fibonacci Numbers vs Turtle vs Portal

The clearest difference is ads: Fibonacci Numbers at none against Turtle vs Portal's shown. Fibonacci Numbers also leads on update cadence (every 10 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Fibonacci Numbers sells 1 one-off in-app purchase and Turtle vs Portal sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Fibonacci Numbers ships an update every 10 days, Turtle vs Portal every 2 months. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Fibonacci Numbers | Turtle vs Portal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/turtle-vs-portal/id6743195587/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 24 MB | 181 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [海军 王](https://appshunter.io/developer/1756634009) | [Sivadasan N](https://appshunter.io/developer/1780863297) |

## What reviewers say

### Fibonacci Numbers

[App page](https://appshunter.io/ios/app/fibonacci-numbers/id6566185190)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2000Coins | $0.99 | one-time |


### Turtle vs Portal

[App page](https://appshunter.io/ios/app/turtle-vs-portal/id6743195587)

Embark on a magical journey with a brave turtle in this puzzle platform adventure. Solve clever puzzles, collect stars, and unlock portals across beautifully designed worlds. Experience a relaxing yet challenging game with intuitive controls and a story-driven progression.

**Highlights:** Story-driven puzzle platform adventure, 72 handcrafted levels across 8 worlds, Simple controls with deep puzzle mechanics, Colorful visuals and smooth animations, Supports 12 languages, Free-to-play casual experience

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Fibonacci Numbers free?

Fibonacci Numbers is free to download, with in-app purchases available.

### Is Turtle vs Portal free?

Turtle vs Portal is free to download, with in-app purchases available.

### Do Fibonacci Numbers or Turtle vs Portal have ads?

Turtle vs Portal shows ads; Fibonacci Numbers does not.

### Which is updated more often, Fibonacci Numbers or Turtle vs Portal?

Fibonacci Numbers ships an update every 10 days, and Turtle vs Portal every 2 months. Most recently, Fibonacci Numbers was updated on October 7, 2026 and Turtle vs Portal on October 20, 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.*