# ARC vs SolVi

The clearest difference is update cadence: ARC at monthly against SolVi's every 7 months. ARC also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.4). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ARC ships an update monthly, SolVi every 7 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ARC | SolVi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Size | 23 MB | 54 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Duc Hoang](https://appshunter.io/developer/1301966997) | [Dao Duong](https://appshunter.io/developer/1851400410) |

## What reviewers say

### ARC

[App page](https://appshunter.io/ios/app/arc/id1631723962)

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

**In-app purchases:** none


### SolVi

[App page](https://appshunter.io/ios/app/solvi-smart-solar-ai/id6761745728)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ARC free?

ARC is free to download, with no in-app purchases.

### Is SolVi free?

SolVi is free to download, with no in-app purchases.

### Do ARC or SolVi have ads?

Neither ARC nor SolVi shows ads.

### Which is updated more often, ARC or SolVi?

ARC ships an update monthly, and SolVi every 7 months. Most recently, ARC was updated on November 3, 2026 and SolVi 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.*