# Expert Assistant Professional vs OD Events

The clearest difference is iOS requirement: Expert Assistant Professional at 15.1 against OD Events's 17.0. 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.

Expert Assistant Professional ships an update every 3 months, OD Events every 2 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Expert Assistant Professional | OD Events |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (7 ratings)](https://appshunter.io/ios/app/expert-assistant-professional/id1294470752/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 19 MB | 77 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aderant Holdings Inc.](https://appshunter.io/developer/896510525) | [Ogletree, Deakins, Nash, Smoak & Stewart, P.C.](https://appshunter.io/developer/636083735) |

## What reviewers say

### Expert Assistant Professional

[App page](https://appshunter.io/ios/app/expert-assistant-professional/id1294470752)

This mobile app provides Aderant Expert users with on-the-go access to essential professional tasks. Manage time, expenses, and client information efficiently from any location. It's designed to streamline workflows for agile professionals.

**Highlights:** Time capture, Expense capture, Bill editing, Client inquiries, Matter inquiries, Mobile access

**Features:** Vision Pro support

**In-app purchases:** none


### OD Events

[App page](https://appshunter.io/ios/app/od-events/id1571737039)

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

**In-app purchases:** none


## Frequently asked questions

### Is Expert Assistant Professional free?

Expert Assistant Professional is free to download, with no in-app purchases.

### Is OD Events free?

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

### Do Expert Assistant Professional or OD Events have ads?

Neither Expert Assistant Professional nor OD Events shows ads.

### Which is updated more often, Expert Assistant Professional or OD Events?

Expert Assistant Professional ships an update every 3 months, and OD Events every 2 months. Most recently, Expert Assistant Professional was updated on November 3, 2026 and OD Events on November 7, 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.*