# Willows AMS vs NACOG 2026

The clearest difference is iOS requirement: Willows AMS at 11.0 against NACOG 2026's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 8, 2026 and August 21, 2026 respectively.

## The numbers

| Metric | Willows AMS | NACOG 2026 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 144 MB | 31 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ontash Systems Inc](https://appshunter.io/developer/1553782448) | [Axiem Systems](https://appshunter.io/developer/397601279) |

## What reviewers say

### Willows AMS

[App page](https://appshunter.io/ios/app/willows-ams/id1582404543)

**Features:** macOS Compatibility

**In-app purchases:** none


### NACOG 2026

[App page](https://appshunter.io/ios/app/nacog-2026/id6775514101)

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

**In-app purchases:** none


## Frequently asked questions

### Is Willows AMS free?

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

### Is NACOG 2026 free?

NACOG 2026 is free to download, with no in-app purchases.

### Do Willows AMS or NACOG 2026 have ads?

Neither Willows AMS nor NACOG 2026 shows ads.

### Which is updated more often, Willows AMS or NACOG 2026?

Willows AMS ships an update monthly, and NACOG 2026 monthly. Most recently, Willows AMS was updated on September 8, 2026 and NACOG 2026 on August 21, 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.*