# TMA iGas vs Viet Smart

The clearest difference is update cadence: TMA iGas at weekly against Viet Smart's every 20 months. 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.

TMA iGas ships an update weekly, Viet Smart every 20 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TMA iGas | Viet Smart |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 20 months |
| Monetization | — | Free |
| Size | 73 MB | 184 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [TMA Mobile Solutions (TMS)](https://appshunter.io/developer/397093678) | [Quoc BInh Tran](https://appshunter.io/developer/1672750199) |

## What reviewers say

### TMA iGas

[App page](https://appshunter.io/ios/app/tma-igas/id6480381233)

**Features:** macOS Compatibility

**In-app purchases:** none


### Viet Smart

[App page](https://appshunter.io/ios/app/viet-smart/id6630367389)

This app provides personalized interior design and model home consultation. It helps users visualize living spaces and make informed decisions about furniture and layout for optimal functionality and style.

**Highlights:** Personalized interior design simulation, Model home layout consultation, Furniture selection guidance, Space configuration optimization, Functional living space planning

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TMA iGas free?

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

### Is Viet Smart free?

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

### Do TMA iGas or Viet Smart have ads?

Neither TMA iGas nor Viet Smart shows ads.

### Which is updated more often, TMA iGas or Viet Smart?

TMA iGas ships an update weekly, and Viet Smart every 20 months. Most recently, TMA iGas was updated on October 27, 2026 and Viet Smart on October 24, 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.*