# ACV Viper vs Rey

The clearest difference is iOS requirement: Rey at 15.0 against ACV Viper's 17.0. On price, update cadence, 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.

ACV Viper ships an update fortnightly, Rey every 3 weeks. The most recent releases landed on November 4, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | ACV Viper | Rey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 190 MB | 40 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ACV Auctions Inc](https://appshunter.io/developer/969808942) | [Lofi GmbH](https://appshunter.io/developer/1775072549) |

## What reviewers say

### ACV Viper

[App page](https://appshunter.io/ios/app/acv-viper/id6476239640)

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

**In-app purchases:** none


### Rey

[App page](https://appshunter.io/ios/app/rey-mobile-preview/id6747823944)

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

**In-app purchases:** none


## Frequently asked questions

### Is ACV Viper free?

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

### Is Rey free?

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

### Do ACV Viper or Rey have ads?

Neither ACV Viper nor Rey shows ads.

### Which is updated more often, ACV Viper or Rey?

ACV Viper ships an update fortnightly, and Rey every 3 weeks. Most recently, ACV Viper was updated on November 4, 2026 and Rey on November 12, 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.*