# GeoFossil vs PastViewer

The clearest difference is in-app purchases: GeoFossil at none against PastViewer's 3. PastViewer's advantage is ads (none vs shown) and update cadence (monthly vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PastViewer sells 3 one-off in-app purchases. GeoFossil asks for nothing beyond the download.

GeoFossil ships an update every 4 months, PastViewer monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | GeoFossil | PastViewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/geofossil/id6746865698/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 19 MB | 57 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Hall](https://appshunter.io/developer/1765780958) | [Dmitry Vorobyev](https://appshunter.io/developer/1888156177) |

## What reviewers say

### GeoFossil

[App page](https://appshunter.io/ios/app/geofossil/id6746865698)

Explore global fossil discoveries on an interactive map. Access detailed profiles, scientific publications, and powerful search filters to uncover Earth's prehistoric past. Ideal for students and enthusiasts interested in paleontology and geology.

**Highlights:** Global fossil map, Detailed fossil profiles, Linked scientific publications, Powerful search filters, Explore prehistoric life, Educational and engaging

**In-app purchases:** none


### PastViewer

[App page](https://appshunter.io/ios/app/pastviewer/id6761183383)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is GeoFossil free?

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

### Is PastViewer free?

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

### Do GeoFossil or PastViewer have ads?

GeoFossil shows ads; PastViewer does not.

### Which is updated more often, GeoFossil or PastViewer?

GeoFossil ships an update every 4 months, and PastViewer monthly. Most recently, GeoFossil was updated on October 24, 2026 and PastViewer on October 24, 2026.

---

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