# OADA vs NDIAAA

OADA and NDIAAA are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

OADA ships an update every 2 months, NDIAAA monthly. The most recent releases landed on September 11, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | OADA | NDIAAA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/oada-oregon-ad-association/id6479817226/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 117 MB | 118 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SchoolCNXT Inc.](https://appshunter.io/developer/653499250) | [North Dakota Council of Educational Leaders Inc](https://appshunter.io/developer/1532774723) |

## What reviewers say

### OADA

[App page](https://appshunter.io/ios/app/oada-oregon-ad-association/id6479817226)

This app provides Oregon Athletic Directors Association members with schedules, event details, and resources. It offers location-based messaging and event notifications to keep users informed.

**Highlights:** Event Schedules, Agendas & Details, Notifications, Member Resources, Interactive Map, Staff Directory, Online Registration

**In-app purchases:** none


### NDIAAA

[App page](https://appshunter.io/ios/app/ndiaaa/id6741591307)

**In-app purchases:** none


## Frequently asked questions

### Is OADA free?

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

### Is NDIAAA free?

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

### Do OADA or NDIAAA have ads?

Both OADA and NDIAAA show ads.

### Which is updated more often, OADA or NDIAAA?

OADA ships an update every 2 months, and NDIAAA monthly. Most recently, OADA was updated on September 11, 2026 and NDIAAA on September 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.*