# Viper Demo vs Vantij

The clearest difference is in-app purchases: Viper Demo at none against Vantij's 1. Viper Demo also leads on iOS requirement (14.4 vs 16.2). Vantij's advantage is update cadence (every 4 days vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. Vantij sells 1 in-app purchase, starting at $4.99 per year. Viper Demo asks for nothing beyond the download.

Viper Demo ships an update every 9 months, Vantij every 4 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Viper Demo | Vantij |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/vantij/id6755806355/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 days** |
| Monetization | — | Subscription |
| Size | 3 MB | 24 MB |
| Requires iOS | **14.4** | 16.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Setcan Corporation](https://appshunter.io/developer/1341785698) | [Jacob Knight](https://appshunter.io/developer/1856479297) |

## What reviewers say

### Viper Demo

[App page](https://appshunter.io/ios/app/viper-demo/id1628205039)

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

**In-app purchases:** none


### Vantij

[App page](https://appshunter.io/ios/app/vantij/id6755806355)

Visualize nearby public safety infrastructure like traffic cameras and environmental sensors on an interactive radar map. Selectable radii allow you to see fixed observation systems within your chosen range. An Apple Watch companion app offers widget support.

**Highlights:** Real-time GPS positioning, Radar-style infrastructure visualization, Selectable radius display (1-10 miles), Interactive map with device markers, Apple Watch companion app with widgets

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| yearly | $4.99 | per year |


## Frequently asked questions

### Is Viper Demo free?

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

### Is Vantij free?

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

### Do Viper Demo or Vantij have ads?

Neither Viper Demo nor Vantij shows ads.

### Which is updated more often, Viper Demo or Vantij?

Viper Demo ships an update every 9 months, and Vantij every 4 days. Most recently, Viper Demo was updated on October 27, 2026 and Vantij on October 30, 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.*