# Sundirect Smart vs Big Voize Lite

The clearest difference is iOS requirement: Big Voize Lite at 11.0 against Sundirect Smart's 13.0. On price, update cadence, 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.

Sundirect Smart ships an update every 12 months, Big Voize Lite every 16 months. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Sundirect Smart | Big Voize Lite |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 12 months** | Every 16 months |
| Monetization | Free | — |
| Size | 182 MB | 33 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [焕康 吴](https://appshunter.io/developer/1398707077) | [ADVAITAM TECH SOLUTIONS PRIVATE LIMITED](https://appshunter.io/developer/1158677753) |

## What reviewers say

### Sundirect Smart

[App page](https://appshunter.io/ios/app/sundirect-smart/id1398707078)

Control your WiFi-enabled heaters and thermostats remotely. Manage power, set schedules, and activate holiday modes from anywhere. Enjoy convenient and smart heating management.

**Highlights:** Remote power on/off, Manual heating mode, Smart mode with 7-day programming, Holiday mode, Easy device connection, Device sharing

**In-app purchases:** none


### Big Voize Lite

[App page](https://appshunter.io/ios/app/big-voize-lite/id1626003716)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sundirect Smart free?

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

### Is Big Voize Lite free?

Big Voize Lite is free to download, with no in-app purchases.

### Do Sundirect Smart or Big Voize Lite have ads?

Neither Sundirect Smart nor Big Voize Lite shows ads.

### Which is updated more often, Sundirect Smart or Big Voize Lite?

Sundirect Smart ships an update every 12 months, and Big Voize Lite every 16 months. Most recently, Sundirect Smart was updated on November 2, 2026 and Big Voize Lite on October 27, 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.*