# NAVY TRAINING CENTER vs Circular45

The clearest difference is update cadence: NAVY TRAINING CENTER at every 2 months against Circular45's every 8 months. NAVY TRAINING CENTER also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NAVY TRAINING CENTER ships an update every 2 months, Circular45 every 8 months. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | NAVY TRAINING CENTER | Circular45 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Size | 32 MB | 26 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NAVY POWER TRAINING S DE RL DE CV](https://appshunter.io/developer/1474013652) | [Fernando Quintana](https://appshunter.io/developer/1758379392) |

## What reviewers say

### NAVY TRAINING CENTER

[App page](https://appshunter.io/ios/app/navy-training-center/id6480454164)

**Features:** macOS Compatibility

**In-app purchases:** none


### Circular45

[App page](https://appshunter.io/ios/app/circular45/id6743935192)

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

**In-app purchases:** none


## Frequently asked questions

### Is NAVY TRAINING CENTER free?

NAVY TRAINING CENTER is free to download, with no in-app purchases.

### Is Circular45 free?

Circular45 is free to download, with no in-app purchases.

### Do NAVY TRAINING CENTER or Circular45 have ads?

Neither NAVY TRAINING CENTER nor Circular45 shows ads.

### Which is updated more often, NAVY TRAINING CENTER or Circular45?

NAVY TRAINING CENTER ships an update every 2 months, and Circular45 every 8 months. Most recently, NAVY TRAINING CENTER was updated on October 5, 2026 and Circular45 on October 4, 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.*