# RelativityOne vs iOrion

The clearest difference is rating: RelativityOne at 3.4 against iOrion's 3.0. RelativityOne also leads on ratings volume (27 vs 2). iOrion's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

RelativityOne holds the better App Store score, 3.4 against 3.0. That said, the two scores are not equally well evidenced: RelativityOne has 27 ratings behind it against 2, so its average is the more settled of the two.

RelativityOne ships an update every 2 months, iOrion every 3 weeks. The most recent releases landed on September 14, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | RelativityOne | iOrion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (27 ratings)](https://appshunter.io/ios/app/relativityone/id1452895391/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/iorion/id6499235469/reviews) |
| Number of ratings | **27** | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 17 MB | 25 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Relativity ODA LLC](https://appshunter.io/developer/1289795097) | [Orion Law Management Systems Inc](https://appshunter.io/developer/1215380066) |

## What reviewers say

### RelativityOne

[App page](https://appshunter.io/ios/app/relativityone/id1452895391)

This business application offers secure document review and management capabilities for legal professionals. Access case files, share documents, and make coding decisions from anywhere, with all changes syncing instantly to the main platform. It prioritizes security with passcode and biometric login options.

**Highlights:** Secure document sharing, Access Views and Saved Searches, Code documents with instant syncing, Mobile access to RelativityOne, 6-digit passcode/biometric login

**Features:** macOS Compatibility

**In-app purchases:** none


### iOrion

[App page](https://appshunter.io/ios/app/iorion/id6499235469)

This app provides legal professionals with mobile access to their Orion software data. It simplifies timekeeping, client and case management, and expense submissions, helping to improve efficiency and financial oversight.

**Highlights:** Mobile timekeeping and billing, Client and case information access, Initiate calls and emails from contacts, Task and appointment management, Expense submission with receipt scanning, Payment calendar access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RelativityOne free?

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

### Is iOrion free?

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

### Which has better reviews, RelativityOne or iOrion?

RelativityOne is rated higher. RelativityOne averages 3.4 out of 5 from 27 ratings, while iOrion averages 3.0 from 2 ratings.

### Do RelativityOne or iOrion have ads?

Neither RelativityOne nor iOrion shows ads.

### Which is updated more often, RelativityOne or iOrion?

RelativityOne ships an update every 2 months, and iOrion every 3 weeks. Most recently, RelativityOne was updated on September 14, 2026 and iOrion on September 10, 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.*