Comparison

RelativityOne vs iOrion

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RelativityOne

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
Read full description

RelativityOne provides everything needed to tackle document review challenges. Get the control and flexibility you need to amplify your team’s efforts and get to the substance of a matter. Whether you’re in the office or on the go, the mobile application for RelativityOne allows you to securely share documents, access Views and Saved Searches, and code documents with all decisions instantly reflected in RelativityOne. RelativityOne was built with security top of mind. The app requires a 6-digit passcode (or TouchID / FaceID) and a RelativityOne log in.

About

iOrion

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
Read full description

iOrion® is a complete financial management mobile application that allows legal professionals to access data from their Orion software using any recent-model iOS® device. iOrion provides a simpler, more efficient mobile timekeeping solution as well as access to critical information about clients, related contacts and cases. Emails and phone calls can be initiated from the legal professionals’ Client or favorite Matter when viewing a related contact. As with Orion’s desktop application, when the legal professional completes those activities, iOrion will automatically track the time and create a related fee. iOrion allows legal professionals to better manage their cases, keep more accurate account of their billable time and expenses, and stay on top of the firm’s bottom line. Highlights: Time Management – iOS versions of Orion’s “Time Entry”, “Smart Timers” and “Time Manager” Contact Management – All Contact related information is easily accessible including relationships to other Contacts and Matters, initiate phone calls/emails from within iOrion or even display driving directions. Matter Management – Organize information by Matter which allows for quick access to financial information while on-the-go Event Management – Quickly create and edit Tasks/Appointments and “To-Do” lists while automatically recording and billing for your time Payment Calendar – Real time access to payment information including multiple views and sorting capabilities Expense Reimbursement – Mobile submission of reimbursement requests, along with ability to scan receipts or other documents Requirements: iOrion for iOS is available for use in conjunction with Orion’s Financial Management software solution.

Screenshots

RelativityOne4 screens
iOrion4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
RelativityOne versus iOrion: the parameters behind the verdict, then further details
ParameterRelativityOneiOrion
PriceFreeFree
Rating3.4 (27 ratings) — better3.0 (2 ratings)
Positive reviews0.0% of reviews—
Number of ratings27 — better2
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size17 MB25 MB
Age rating4+4+
DeveloperRelativity ODA LLCOrion Law Management Systems Inc

Customer experience

RelativityOne

All ratings27 ratings
Positive63.0%
Neutral0.0%
Negative37.0%
Written reviews6 reviews
Positive0.0%
Neutral16.7%
Negative83.3%

iOrion

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

RelativityOne

No in-app purchases

None

iOrion

No in-app purchases

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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