# ASTAR 4D vs BltPrompter

ASTAR 4D and BltPrompter are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

ASTAR 4D ships an update every 5 months, BltPrompter every 3 months. The most recent releases landed on October 18, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | ASTAR 4D | BltPrompter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (7 ratings)](https://appshunter.io/ios/app/astar-4d/id1490993407/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 1.0 GB | 49 MB |
| Requires iOS | 15.0 | **14** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [integer AR](https://appshunter.io/developer/1156869823) | [Evgenii Galyuk](https://appshunter.io/developer/1768095038) |

## What reviewers say

### ASTAR 4D

[App page](https://appshunter.io/ios/app/astar-4d/id1490993407)

This educational app uses augmented reality to bring printed books to life. It transforms static images into interactive 3D models, enhancing learning for students. Explore anatomy, space, technology, and nature through engaging visualizations and audio.

**Highlights:** Augmented reality 3D models, Interactive visualizations, Spatial reasoning development, Imagination enhancement, Volume design skills, Audio accompaniment

**Features:** macOS Compatibility

**In-app purchases:** none


### BltPrompter

[App page](https://appshunter.io/ios/app/bltprompter/id6751709289)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ASTAR 4D free?

ASTAR 4D is free to download, with no in-app purchases.

### Is BltPrompter free?

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

### Do ASTAR 4D or BltPrompter have ads?

Neither ASTAR 4D nor BltPrompter shows ads.

### Which is updated more often, ASTAR 4D or BltPrompter?

ASTAR 4D ships an update every 5 months, and BltPrompter every 3 months. Most recently, ASTAR 4D was updated on October 18, 2026 and BltPrompter on October 2, 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.*