Viper Demo vs Vantij
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Viper Demo
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The Viper Demo App allows you to connect to one or more StressVest Vipers, activate functions, and see battery information. Your iPhone or iPad will search and display nearby StressVest Vipers.
Vantij
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.
- 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
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App displays nearby public safety infrastructure such as traffic cameras, roadway monitoring devices, environmental acoustic sensors, and other publicly placed observation systems. These locations are shown on an interactive radar-style interface that visualizes nearby fixed public infrastructure within a selected radius. Features: - Real-time GPS positioning with status indicator - Radar-style visualization showing nearby fixed infrastructure - Selectable 1, 3, 5, or 10-mile radius for map display - Interactive map view with device markers - Apple Watch companion app with widget support Subscription Required: Full access requires a Vantij subscription. Start with a 1-day free trial, then $9.99/year (or your regional equivalent). Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. This app uses your location to provide navigation or mapping information. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.gridbase.net/pages/privacy-policy
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Viper Demo | Vantij |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.2 (5 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 9 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 14.4 — better | 16.2 |
| Further details — not scored | ||
| Size | 3 MB | 24 MB |
| Age rating | 17+ | 4+ |
| Developer | Setcan Corporation | Jacob Knight |
In-app purchases
Viper Demo
No in-app purchases
Vantij
- yearly$4.991 Year
