Comparison

On vs Seymour Events

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

Head to head
About

On

This utility app helps audio professionals quickly measure and model audience areas for event and touring setups. It offers a streamlined workflow compatible with popular loudspeaker simulation programs, speeding up the design process. Users can create 3D models of listening areas and generate profiles along speaker axes.

Highlights
  • Audience area measurement
  • 3D listening area modeling
  • Speaker axis profiling
  • Bluetooth laser distance finder integration
  • Export to loudspeaker simulation software
  • 14-day free trial
Features
Read full description

THE APP Introducing On-Axis: The must-have app for audio professionals in the event and touring industry! Measure and model your audience area with a completely new method compatible with many popular loudspeaker simulation programs. The On-Axis method significantly speeds up the measurement of the audience area, allowing you to focus on the most important thing, making the actual speaker design. WORKFLOW The On-Axis workflow begins by taking measurements of the audience area with the app. The On-Axis exports a file that can be imported into the selected loudspeaker simulation software. The On-Axis does not replace traditional methods such as CAD drawings or other precise models. It is a new addition to your existing toolbox. MODES The app consists of three different operating modes. Venue and Planes mode can be used to draw a 3D model of the listening area. The On-Axis Profile mode can be used to draw a uniform plane to the speaker’s axis, starting from the speaker’s rigging point and ending at the farthest point of the audience area. BLUETOOTH SUPPORT The app can be paired with a compatible laser distance finder via Bluetooth. This enables the measured distance and angle to be transferred wirelessly. See the compatibility chart for more info on supported devices. TO GET STARTED Watch the tutorial videos to get started: http://link.oksound.fi/playlist The app is free to download but requires an In-App-Purchase to unlock the export, save and open functions. A 14-day free full trial is also available to see if this tool fits your workflow.  This is a 3rd party solution and compatibility with simulation software is guaranteed only with tested versions. Check the website for more information and compatibility: https://onaxisapp.com or https://oksound.fi

About

Seymour Events

Features
Read full description

Seymour Events makes live events more inclusive by providing real-time captions and translations that attendees can view on their own mobile devices. Connect your audio, start the caption stream, and share the link. Captioning and translation made easy for any live event. Whether you’re just getting started or need more advanced features, Seymour Events offers different plans to fit your needs. Use the free plan to explore the basics, or upgrade for additional features. For more information about licensing, read the End User License Agreement (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ and for privacy information, read our privacy policy https://seymour.events/privacy-policy .

Screenshots

On4 screens
Seymour Events4 screens

Verdict

The call

On and Seymour Events 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.

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. On sells 2 one-off in-app purchases and Seymour Events sells 4 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

On ships an update every 3 weeks, Seymour Events every 5 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

ScorecardNo meaningful differences
On versus Seymour Events: the parameters behind the verdict, then further details
ParameterOnSeymour Events
PriceFreeFree
Rating5.0 (7 ratings) — better—
Number of ratings7 — better—
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS1716.0 — better
Further details — not scored
Size20 MB4 MB
Age rating4+4+
DeveloperOK-SoundGregory Mena

In-app purchases

2 purchases

On

One-time2
  • 14-day TrialFree
  • Unlock App$149.99
4 purchases

Seymour Events

Subscriptions4
  • Standard Plan Monthly$19.991 Month
  • Pro Plan Monthly$29.991 Month
  • Standard Plan Annual$149.001 Year
Show 1 more
  • Pro Plan Annual$199.991 Year

Questions

Is On free?
On is free to download, with in-app purchases available.
Is Seymour Events free?
Seymour Events is free to download, with in-app purchases available.
Do On or Seymour Events have ads?
Neither On nor Seymour Events shows ads.
Which is updated more often, On or Seymour Events?
On ships an update every 3 weeks, and Seymour Events every 5 weeks. Most recently, On was updated on November 3, 2026 and Seymour Events on November 4, 2026.

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