# Green Smart vs B4T

The clearest difference is update cadence: Green Smart at every 3 months against B4T's every 58 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.

Green Smart ships an update every 3 months, B4T every 58 months. The most recent releases landed on October 12, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Green Smart | B4T |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 58 months |
| Size | 170 MB | 39 MB |
| Requires iOS | 12.4 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Green Development Bank LTD.](https://appshunter.io/developer/1475889640) | [SoAni Tech](https://appshunter.io/developer/1450100946) |

## What reviewers say

### Green Smart

[App page](https://appshunter.io/ios/app/green-smart/id1475889641)

**Features:** Vision Pro support

**In-app purchases:** none


### B4T

[App page](https://appshunter.io/ios/app/b4t/id1489073343)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Green Smart free?

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

### Is B4T free?

B4T is free to download, with no in-app purchases.

### Do Green Smart or B4T have ads?

Neither Green Smart nor B4T shows ads.

### Which is updated more often, Green Smart or B4T?

Green Smart ships an update every 3 months, and B4T every 58 months. Most recently, Green Smart was updated on October 12, 2026 and B4T on September 19, 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.*