# Sub vs VAULTEK 2.0

The clearest difference is rating: Sub at 4.4 against VAULTEK 2.0's 2.0. Sub also leads on update cadence (every 5 weeks vs every 5 months) and ratings volume (786 vs 84). VAULTEK 2.0's advantage is monetization model (free vs ad-supported) and iOS requirement (13.0 vs 15.5). On price, review sentiment, 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.

Sub holds the better App Store score, 4.4 against 2.0. That said, the two scores are not equally well evidenced: Sub has 786 ratings behind it against 84, so its average is the more settled of the two. Written reviews point the same way: 15% of Sub's written reviews are positive against 8% of VAULTEK 2.0's.

Sub ships an update every 5 weeks, VAULTEK 2.0 every 5 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Sub | VAULTEK 2.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (786 ratings)](https://appshunter.io/ios/app/sub-zero-group-owners-app/id1248991284/reviews)** | [2.0 (84 ratings)](https://appshunter.io/ios/app/vaultek-20/id1561974628/reviews) |
| Number of ratings | **786** | 84 |
| Positive reviews | **14.7% of reviews** | 8.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Monetization | Ad-supported | **Free** |
| Size | 69 MB | 41 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sub-Zero and Wolf](https://appshunter.io/developer/983988992) | [Vaultek Safe, Inc.](https://appshunter.io/developer/1406658583) |

## What reviewers say

### Sub

[App page](https://appshunter.io/ios/app/sub-zero-group-owners-app/id1248991284)

This app enhances your kitchen experience by guiding you through recipes from websites and a curated collection. It allows remote control and monitoring of Sub-Zero refrigeration, Cove dishwashing, and Wolf appliances, ensuring optimal performance and convenience.

**Highlights:** Guided cooking from online recipes, Chef-tested recipes optimized for Wolf appliances, Remote dishwasher control and monitoring, Refrigerator settings and alerts, Filter recipes by cooking mode, Bookmark and share recipes

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Responsive and intuitive app
- 👍 Helpful notifications and alerts
- 🔒 Secure connection to appliances

**What reviewers complain about**

- 🐛 Frequent connection issues and disconnects
- 🔍 Lack of actual temperature monitoring
- 🤔 Confusing setup and pairing process
- 🔍 Missing key features like remote start

**Reported bugs**

- App crashes after recent updates
- Unable to log in or register account
- Appliances disappear from the app
- Firmware update failures brick appliances

**Requested features**

- Add support for Celsius temperature units
- Provide real-time temperature and energy consumption data
- Integrate with smart home platforms like Apple HomeKit


### VAULTEK 2.0

[App page](https://appshunter.io/ios/app/vaultek-20/id1561974628)

Monitor and manage your smart safe remotely with a redesigned interface. View tamper alerts, safe status, and battery life. Open your safe with a simple swipe and manage compatible accessories.

**Highlights:** Redesigned user interface, Tamper information display, Safe status monitoring, Battery level indicator, One-swipe safe opening, Smart Key Nano 2.0 management

**In-app purchases:** none

**What reviewers like**

- 👍 Safe itself is great
- 👍 Setup was easy
- 👍 Fingerprint works every time
- 👍 Clock syncs with app
- 👍 Adjust volume, brightness, tones

**What reviewers complain about**

- 🐛 App won't connect to safe
- 🐛 Bluetooth connection is frustrating
- 🐛 App is poorly designed
- 🐛 App almost never works
- 🐛 Display settings change randomly

**Reported bugs**

- Display constantly changes
- App won't connect to safe
- Bluetooth connection issues
- App crashes
- Settings change randomly

**Requested features**

- Add 24-hour time option
- Add sleep mode for display settings
- Combine all apps into one
- Fix software issues
- Improve app design


## Frequently asked questions

### Is Sub free?

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

### Is VAULTEK 2.0 free?

VAULTEK 2.0 is free to download, with no in-app purchases.

### Which has better reviews, Sub or VAULTEK 2.0?

Sub is rated higher. Sub averages 4.4 out of 5 from 786 ratings, while VAULTEK 2.0 averages 2.0 from 84 ratings.

### Do Sub or VAULTEK 2.0 have ads?

Neither Sub nor VAULTEK 2.0 shows ads.

### Which is updated more often, Sub or VAULTEK 2.0?

Sub ships an update every 5 weeks, and VAULTEK 2.0 every 5 months. Most recently, Sub was updated on October 24, 2026 and VAULTEK 2.0 on October 21, 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.*