# RPS 3D Viewer vs BPsite

RPS 3D Viewer and BPsite 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.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | RPS 3D Viewer | BPsite |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 98 MB | 47 MB |
| Requires iOS | **12.0** | 12.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rapid Prototyping Systems Limited](https://appshunter.io/developer/384045565) | [BUSINESS PILOT (CRM) LTD](https://appshunter.io/developer/1459803159) |

## What reviewers say

### RPS 3D Viewer

[App page](https://appshunter.io/ios/app/rps-3d-viewer/id1497287592)

**Features:** macOS Compatibility

**In-app purchases:** none


### BPsite

[App page](https://appshunter.io/ios/app/bpsite/id6451308305)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RPS 3D Viewer free?

RPS 3D Viewer is free to download, with no in-app purchases.

### Is BPsite free?

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

### Do RPS 3D Viewer or BPsite have ads?

Neither RPS 3D Viewer nor BPsite shows ads.

### Which is updated more often, RPS 3D Viewer or BPsite?

RPS 3D Viewer ships an update monthly, and BPsite monthly. Most recently, RPS 3D Viewer was updated on October 11, 2026 and BPsite on October 12, 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.*