# NativeScript Preview vs SmartBlock

The clearest difference is ads: NativeScript Preview at none against SmartBlock's shown. NativeScript Preview also leads on update cadence (every 3 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NativeScript Preview ships an update every 3 weeks, SmartBlock every 2 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | NativeScript Preview | SmartBlock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/nativescript-preview/id1264484702/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 19.4% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 151 MB | 7 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [nStudio LLC](https://appshunter.io/developer/1334290003) | [Teyfik OZ](https://appshunter.io/developer/1883797216) |

## What reviewers say

### NativeScript Preview

[App page](https://appshunter.io/ios/app/nativescript-preview/id1264484702)

Instantly preview your NativeScript projects directly on your mobile device. See your native UI elements, from buttons to complex 2D/3D canvas renderings, come to life as you develop.

**Highlights:** Live preview on device, Native UI element rendering, 2D canvas rendering, 3D canvas rendering, Cross-platform development tool

**In-app purchases:** none


### SmartBlock

[App page](https://appshunter.io/ios/app/smartblock-spam-protection/id6760979007)

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

**In-app purchases:** none


## Frequently asked questions

### Is NativeScript Preview free?

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

### Is SmartBlock free?

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

### Do NativeScript Preview or SmartBlock have ads?

SmartBlock shows ads; NativeScript Preview does not.

### Which is updated more often, NativeScript Preview or SmartBlock?

NativeScript Preview ships an update every 3 weeks, and SmartBlock every 2 months. Most recently, NativeScript Preview was updated on November 2, 2026 and SmartBlock on October 31, 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.*