# RobocklySense vs 3DCzech

The clearest difference is in-app purchases: RobocklySense at none against 3DCzech's 2. RobocklySense also leads on iOS requirement (9.0 vs 17.6). 3DCzech's advantage is update cadence (every 3 weeks vs every 14 months). On price, ads and device support there is nothing between them.

Both are free to download. 3DCzech sells 2 one-off in-app purchases. RobocklySense asks for nothing beyond the download.

RobocklySense ships an update every 14 months, 3DCzech every 3 weeks. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | RobocklySense | 3DCzech |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 23 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [S. E. S. - SCIENTIFIC EDUCATIONAL SYSTEMS LTD](https://appshunter.io/developer/1238285811) | [Krosapp](https://appshunter.io/developer/1325787780) |

## What reviewers say

### RobocklySense

[App page](https://appshunter.io/ios/app/robocklysense/id1338248392)

**Features:** macOS Compatibility

**In-app purchases:** none


### 3DCzech

[App page](https://appshunter.io/ios/app/3dczech/id6742912569)

Explore historical sites with detailed 3D models and offline access. View models from all angles, read about individual parts, and see how locations appeared in the past, even tracking your current position on historical reconstructions.

**Highlights:** Offline 3D model viewing, Interactive historical reconstructions, Detailed information on site parts, Current position tracking on historical models, View object appearance over time

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Castle Nový Hrádek | $1.99 | one-time |
| Castle Zbořený kostelec | $2.99 | one-time |


## Frequently asked questions

### Is RobocklySense free?

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

### Is 3DCzech free?

3DCzech is free to download, with in-app purchases available.

### Do RobocklySense or 3DCzech have ads?

Neither RobocklySense nor 3DCzech shows ads.

### Which is updated more often, RobocklySense or 3DCzech?

RobocklySense ships an update every 14 months, and 3DCzech every 3 weeks. Most recently, RobocklySense was updated on October 3, 2026 and 3DCzech on October 7, 2026.

---

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