# Arc 9 vs Solace One

The clearest difference is update cadence: Solace One at every 2 days against Arc 9's weekly. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Arc 9 sells 2 one-off in-app purchases and Solace One sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Arc 9 against 5.0 for Solace One. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Arc 9 ships an update weekly, Solace One every 2 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Arc 9 | Solace One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/arc-9/id6760680436/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/solace-one/id6760923579/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 5 MB | 52 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [MK Productions LLC](https://appshunter.io/developer/1372605906) | [Four Corners Development Group](https://appshunter.io/developer/282860913) |

## What reviewers say

### Arc 9

[App page](https://appshunter.io/ios/app/arc-9/id6760680436)

Pilot a ship through a closing alien defense system, rotating to pass through narrow gaps. Survive increasing speeds and challenges across four threat levels, with options to revive and upgrade your ship.

**Highlights:** One-touch rotation controls, Four progressive difficulty levels, Emergency revive option, 25 unlockable achievements, Global leaderboards, Ship upgrades available

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

**In-app purchases (2)**

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


### Solace One

[App page](https://appshunter.io/ios/app/solace-one/id6760923579)

Engage in a citizen compliance program that evolves daily with new directives and AR encounters. Uncover a hidden rebellion and make choices that impact your compliance rating. Discover a dual narrative through official broadcasts and intercepted transmissions.

**Highlights:** Evolving narrative story, Daily directives and tasks, Augmented reality encounters, Hidden rebellion storyline, 50+ achievements, Dual-channel archives, Widgets and Bluetooth detection

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Merit Pack 100 | $0.99 | one-time |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Arc 9 free?

Arc 9 is free to download, with in-app purchases available.

### Is Solace One free?

Solace One is free to download, with in-app purchases available.

### Which has better reviews, Arc 9 or Solace One?

Arc 9 and Solace One are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Arc 9 or Solace One have ads?

Both Arc 9 and Solace One show ads.

### Which is updated more often, Arc 9 or Solace One?

Arc 9 ships an update weekly, and Solace One every 2 days. Most recently, Arc 9 was updated on October 31, 2026 and Solace One on October 31, 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.*