# OpenTopo vs CrushLog

The clearest difference is in-app purchases: OpenTopo at none against CrushLog's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CrushLog sells 1 one-off in-app purchase. OpenTopo asks for nothing beyond the download.

OpenTopo ships an update every 2 months, CrushLog every 3 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OpenTopo | CrushLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 12 MB | 56 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UX Fans s.r.o.](https://appshunter.io/developer/1438523671) | [SaaSForge s.r.o.](https://appshunter.io/developer/1802871863) |

## What reviewers say

### OpenTopo

[App page](https://appshunter.io/ios/app/opentopo/id1465778038)

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

**In-app purchases:** none


### CrushLog

[App page](https://appshunter.io/ios/app/crushlog/id6743440929)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $14.99 | one-time |


## Frequently asked questions

### Is OpenTopo free?

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

### Is CrushLog free?

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

### Do OpenTopo or CrushLog have ads?

Neither OpenTopo nor CrushLog shows ads.

### Which is updated more often, OpenTopo or CrushLog?

OpenTopo ships an update every 2 months, and CrushLog every 3 months. Most recently, OpenTopo was updated on October 24, 2026 and CrushLog on October 25, 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.*