# BastionChat vs OBJ Viewer

The clearest difference is price: OBJ Viewer at Free against BastionChat's $4.99. OBJ Viewer also leads on update cadence (every 6 days vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

OBJ Viewer is free to download; BastionChat costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BastionChat ships an update every 4 months, OBJ Viewer every 6 days. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BastionChat | OBJ Viewer |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Size | 79 MB | 1 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Frederic Ayala Heinrich](https://appshunter.io/developer/1823688846) | [Shota Sukhiashvili](https://appshunter.io/developer/1843072730) |

## What reviewers say

### BastionChat

[App page](https://appshunter.io/ios/app/bastionchat/id6747981691)

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

**In-app purchases:** none


### OBJ Viewer

[App page](https://appshunter.io/ios/app/obj-viewer-view-3d-models/id6803442606)

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

**In-app purchases:** none


## Frequently asked questions

### Is BastionChat free?

BastionChat costs $4.99, with no in-app purchases.

### Is OBJ Viewer free?

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

### Do BastionChat or OBJ Viewer have ads?

Neither BastionChat nor OBJ Viewer shows ads.

### Which is updated more often, BastionChat or OBJ Viewer?

BastionChat ships an update every 4 months, and OBJ Viewer every 6 days. Most recently, BastionChat was updated on October 23, 2026 and OBJ Viewer on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*