# Bluetooth Dome Thermometer vs Vaultek ViSN

The clearest difference is in-app purchases: Bluetooth Dome Thermometer at none against Vaultek ViSN's 1. Bluetooth Dome Thermometer also leads on update cadence (every 6 weeks vs every 3 months) and iOS requirement (9.0 vs 13.0). Vaultek ViSN's advantage is review sentiment (33% vs 0%) and rating (2.4 vs 2.1). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Vaultek ViSN sells 1 in-app purchase, starting at $4.99 per month. Bluetooth Dome Thermometer asks for nothing beyond the download.

Vaultek ViSN holds the better App Store score, 2.4 against 2.1. Both are backed by a comparable volume of ratings — 9 and 19 respectively. Written reviews point the same way: 0% of Bluetooth Dome Thermometer's written reviews are positive against 33% of Vaultek ViSN's.

Bluetooth Dome Thermometer ships an update every 6 weeks, Vaultek ViSN every 3 months. The most recent releases landed on September 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Bluetooth Dome Thermometer | Vaultek ViSN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (9 ratings)](https://appshunter.io/ios/app/bluetooth-dome-thermometer/id1590899483/reviews) | **[2.4 (19 ratings)](https://appshunter.io/ios/app/vaultek-visn/id6670317613/reviews)** |
| Number of ratings | 9 | **19** |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | **Free** | Freemium |
| Size | 33 MB | 20 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Big Green Egg, Inc.](https://appshunter.io/developer/1435822037) | [Vaultek Safe, Inc.](https://appshunter.io/developer/1406658583) |

## What reviewers say

### Bluetooth Dome Thermometer

[App page](https://appshunter.io/ios/app/bluetooth-dome-thermometer/id1590899483)

Monitor your cooking temperatures with a backlit LCD display and a high-temperature stainless steel stem. This device features a quick-disconnect battery for easy charging and a water-resistant cap. It fits all EGG sizes and comes with a rechargeable lithium battery and USB cable.

**Highlights:** Backlit LCD display, High-temperature stainless steel stem, Quick-disconnect battery feature, Water-resistant silicone cap, Rechargeable lithium battery, USB charging cable included

**Features:** macOS Compatibility

**In-app purchases:** none


### Vaultek ViSN

[App page](https://appshunter.io/ios/app/vaultek-visn/id6670317613)

Control and monitor your Wi-Fi enabled safe remotely. Effortlessly set up your device, manage user access with fingerprints and temporary passcodes, and receive real-time alerts for critical activity. Upgrade for advanced features like SOS alerts and multi-safe management.

**Highlights:** Wi-Fi enabled safe network, User-friendly guided setup, Real-time critical activity alerts, Program up to 80 fingerprints, Temporary passcode generation, SOS emergency alerts (premium), Over-the-air firmware updates

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ViSN Premium Subscription | $4.99 | per month |


## Frequently asked questions

### Is Bluetooth Dome Thermometer free?

Bluetooth Dome Thermometer is free to download, with no in-app purchases.

### Is Vaultek ViSN free?

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

### Which has better reviews, Bluetooth Dome Thermometer or Vaultek ViSN?

Vaultek ViSN is rated higher. Bluetooth Dome Thermometer averages 2.1 out of 5 from 9 ratings, while Vaultek ViSN averages 2.4 from 19 ratings.

### Do Bluetooth Dome Thermometer or Vaultek ViSN have ads?

Neither Bluetooth Dome Thermometer nor Vaultek ViSN shows ads.

### Which is updated more often, Bluetooth Dome Thermometer or Vaultek ViSN?

Bluetooth Dome Thermometer ships an update every 6 weeks, and Vaultek ViSN every 3 months. Most recently, Bluetooth Dome Thermometer was updated on September 21, 2026 and Vaultek ViSN on October 20, 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.*