# AGG NAV vs Defect Check

The clearest difference is update cadence: Defect Check at fortnightly against AGG NAV's monthly. Defect Check also leads on iOS requirement (13.4 vs 15.3). 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.

AGG NAV ships an update monthly, Defect Check fortnightly. The most recent releases landed on September 30, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | AGG NAV | Defect Check |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 59 MB | 20 MB |
| Requires iOS | 15.3 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AGG SMART Ltd](https://appshunter.io/developer/1633637261) | [SJD Systems Limited](https://appshunter.io/developer/1778939136) |

## What reviewers say

### AGG NAV

[App page](https://appshunter.io/ios/app/agg-nav/id6448685395)

**In-app purchases:** none


### Defect Check

[App page](https://appshunter.io/ios/app/defect-check/id6738022047)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AGG NAV free?

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

### Is Defect Check free?

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

### Do AGG NAV or Defect Check have ads?

Neither AGG NAV nor Defect Check shows ads.

### Which is updated more often, AGG NAV or Defect Check?

AGG NAV ships an update monthly, and Defect Check fortnightly. Most recently, AGG NAV was updated on September 30, 2026 and Defect Check on September 26, 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.*