# Nautical 3D Videos Tutorial vs CSM LearnStrike

The clearest difference is in-app purchases: CSM LearnStrike at none against Nautical 3D Videos Tutorial's 1. CSM LearnStrike also leads on update cadence (every 3 weeks vs every 21 months). Nautical 3D Videos Tutorial's advantage is iOS requirement (9.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. Nautical 3D Videos Tutorial sells 1 one-off in-app purchase. CSM LearnStrike asks for nothing beyond the download.

Nautical 3D Videos Tutorial ships an update every 21 months, CSM LearnStrike every 3 weeks. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Nautical 3D Videos Tutorial | CSM LearnStrike |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 3 weeks** |
| Size | 122 MB | 301 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Flavio Losco](https://appshunter.io/developer/831627888) | [4Growth.com](https://appshunter.io/developer/1728434002) |

## What reviewers say

### Nautical 3D Videos Tutorial

[App page](https://appshunter.io/ios/app/nautical-3d-videos-tutorial/id1541308238)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nautical 3D Video Tutorial | $26.99 | one-time |


### CSM LearnStrike

[App page](https://appshunter.io/ios/app/csm-learnstrike/id6450264607)

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

**In-app purchases:** none


## Frequently asked questions

### Is Nautical 3D Videos Tutorial free?

Nautical 3D Videos Tutorial is free to download, with in-app purchases available.

### Is CSM LearnStrike free?

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

### Do Nautical 3D Videos Tutorial or CSM LearnStrike have ads?

Neither Nautical 3D Videos Tutorial nor CSM LearnStrike shows ads.

### Which is updated more often, Nautical 3D Videos Tutorial or CSM LearnStrike?

Nautical 3D Videos Tutorial ships an update every 21 months, and CSM LearnStrike every 3 weeks. Most recently, Nautical 3D Videos Tutorial was updated on September 10, 2026 and CSM LearnStrike on September 9, 2026.

---

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