# Sub vs DT Smart Battery

The clearest difference is rating: Sub at 4.4 against DT Smart Battery's 1.5. Sub also leads on ratings volume (786 vs 8) and review sentiment (15% vs 0%). DT Smart Battery's advantage is monetization model (free vs ad-supported) and iOS requirement (11.0 vs 15.5). On price, ads, in-app purchases and device support 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 1.5. That said, the two scores are not equally well evidenced: Sub has 786 ratings behind it against 8, 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 0% of DT Smart Battery's.

Sub ships an update every 5 weeks, DT Smart Battery every 3 months. The most recent releases landed on October 29, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Sub | DT Smart Battery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (786 ratings)](https://appshunter.io/ios/app/sub-zero-group-owners-app/id1248991284/reviews)** | [1.5 (8 ratings)](https://appshunter.io/ios/app/dt-smart-battery/id1446858822/reviews) |
| Number of ratings | **786** | 8 |
| Positive reviews | **14.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Ad-supported | **Free** |
| Size | 69 MB | 28 MB |
| Requires iOS | 15.5 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sub-Zero and Wolf](https://appshunter.io/developer/983988992) | [应刚 郑](https://appshunter.io/developer/1446858821) |

## 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


### DT Smart Battery

[App page](https://appshunter.io/ios/app/dt-smart-battery/id1446858822)

Monitor your smart battery pack's performance and status remotely via Bluetooth. View real-time data like voltage, current, temperature, and remaining power. Receive alerts for critical conditions and set custom reminders.

**Highlights:** Real-time battery status monitoring, Voltage, current, and temperature readings, Remaining power percentage, Protection information alerts, Individual cell voltage monitoring, Customizable power and temperature reminders

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sub free?

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

### Is DT Smart Battery free?

DT Smart Battery is free to download, with no in-app purchases.

### Which has better reviews, Sub or DT Smart Battery?

Sub is rated higher. Sub averages 4.4 out of 5 from 786 ratings, while DT Smart Battery averages 1.5 from 8 ratings.

### Do Sub or DT Smart Battery have ads?

Neither Sub nor DT Smart Battery shows ads.

### Which is updated more often, Sub or DT Smart Battery?

Sub ships an update every 5 weeks, and DT Smart Battery every 3 months. Most recently, Sub was updated on October 29, 2026 and DT Smart Battery on November 2, 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.*