# ISDA E vs NavyCrew

The clearest difference is update cadence: NavyCrew at every 5 days against ISDA E's every 3 months. ISDA E's advantage is iOS requirement (11.0 vs 13.0). 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.

ISDA E ships an update every 3 months, NavyCrew every 5 days. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | ISDA E | NavyCrew |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Size | 70 MB | 39 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mario Perricone](https://appshunter.io/developer/1523501305) | [Promatchs](https://appshunter.io/developer/1841911088) |

## What reviewers say

### ISDA E

[App page](https://appshunter.io/ios/app/isda-e-learning/id1608171494)

**Features:** macOS Compatibility

**In-app purchases:** none


### NavyCrew

[App page](https://appshunter.io/ios/app/navycrew/id6752956529)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ISDA E free?

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

### Is NavyCrew free?

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

### Do ISDA E or NavyCrew have ads?

Neither ISDA E nor NavyCrew shows ads.

### Which is updated more often, ISDA E or NavyCrew?

ISDA E ships an update every 3 months, and NavyCrew every 5 days. Most recently, ISDA E was updated on September 22, 2026 and NavyCrew on September 17, 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.*