# BIPS Viewer vs Lithos

The clearest difference is in-app purchases: BIPS Viewer at none against Lithos's 1. BIPS Viewer also leads on iOS requirement (8.0 vs 26.0). Lithos's advantage is update cadence (every 6 weeks vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Lithos sells 1 in-app purchase, starting at $49.99 per month. BIPS Viewer asks for nothing beyond the download.

BIPS Viewer ships an update every 6 months, Lithos every 6 weeks. Both last shipped on October 12, 2026.

## The numbers

| Metric | BIPS Viewer | Lithos |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Size | 2 MB | 72 MB |
| Requires iOS | **8.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RAAX CO.,LTD.](https://appshunter.io/developer/969322696) | [One North Software Pte. Ltd.](https://appshunter.io/developer/6773476226) |

## What reviewers say

### BIPS Viewer

[App page](https://appshunter.io/ios/app/bips-viewer-the-projection-borehole-image-data-viewer/id969322697)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lithos

[App page](https://appshunter.io/ios/app/lithos/id6773476224)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $49.99 | per month |


## Frequently asked questions

### Is BIPS Viewer free?

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

### Is Lithos free?

Lithos is free to download, with in-app purchases available.

### Do BIPS Viewer or Lithos have ads?

Neither BIPS Viewer nor Lithos shows ads.

### Which is updated more often, BIPS Viewer or Lithos?

BIPS Viewer ships an update every 6 months, and Lithos every 6 weeks. Most recently, BIPS Viewer was updated on October 12, 2026 and Lithos 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.*