# Retro Nitro vs Arrow Harbor Chain

The clearest difference is update cadence: Arrow Harbor Chain at weekly against Retro Nitro's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Retro Nitro sells 7 one-off in-app purchases and Arrow Harbor Chain sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Retro Nitro ships an update fortnightly, Arrow Harbor Chain weekly. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Retro Nitro | Arrow Harbor Chain |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 46 MB | 304 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Serifcan Onursal](https://appshunter.io/developer/6805201565) | [RECRE8BOX](https://appshunter.io/developer/1815455727) |

## What reviewers say

### Retro Nitro

[App page](https://appshunter.io/ios/app/retro-nitro/id6805201563)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 65 Diamonds | $0.99 | one-time |
| 150 Diamonds | $1.99 | one-time |
| Remove Ads | $4.99 | one-time |
| 450 Diamonds | $5.49 | one-time |
| 1200 Diamonds | $11.99 | one-time |
| 2500 Diamonds | $20.99 | one-time |
| 5000 Diamonds | $33.99 | one-time |


### Arrow Harbor Chain

[App page](https://appshunter.io/ios/app/arrow-harbor-chain/id6809627420)

Guide arrows of matching colors to clear a harbor by chaining their paths. This puzzle game features a single, intuitive rule that unlocks hundreds of unique challenges. Enjoy a calm, strategic experience with no pressure to pay for solutions.

**Highlights:** Intuitive one-rule gameplay, 965 machine-verified puzzles, 600 campaign routes, 365 daily routes, Free restarts and undo options, Calm, minimalist visual design

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 Coins | $0.99 | one-time |
| Booster Pack | $1.99 | one-time |
| No Ads | $2.99 | one-time |
| 1500 Coins | $2.99 | one-time |
| Starter Bundle | $4.99 | one-time |
| Growth Pass | $4.99 | one-time |
| 4000 Coins | $6.99 | one-time |


## Frequently asked questions

### Is Retro Nitro free?

Retro Nitro is free to download, with in-app purchases available.

### Is Arrow Harbor Chain free?

Arrow Harbor Chain is free to download, with in-app purchases available.

### Do Retro Nitro or Arrow Harbor Chain have ads?

Both Retro Nitro and Arrow Harbor Chain show ads.

### Which is updated more often, Retro Nitro or Arrow Harbor Chain?

Retro Nitro ships an update fortnightly, and Arrow Harbor Chain weekly. Most recently, Retro Nitro was updated on November 10, 2026 and Arrow Harbor Chain on November 6, 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.*