# E Building vs Smart Touch

The clearest difference is iOS requirement: Smart Touch at 13.0 against E Building's 15.0. 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.

E Building ships an update fortnightly, Smart Touch every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | E Building | Smart Touch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Size | 72 MB | 22 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Chetankumar Virani](https://appshunter.io/developer/1856187112) | [Tarun Malhotra](https://appshunter.io/developer/1496800435) |

## What reviewers say

### E Building

[App page](https://appshunter.io/ios/app/e-building/id6755763329)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Smart Touch

[App page](https://appshunter.io/ios/app/smart-touch/id6780639327)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is E Building free?

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

### Is Smart Touch free?

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

### Do E Building or Smart Touch have ads?

Neither E Building nor Smart Touch shows ads.

### Which is updated more often, E Building or Smart Touch?

E Building ships an update fortnightly, and Smart Touch every 2 weeks. Most recently, E Building was updated on October 24, 2026 and Smart Touch on October 25, 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.*