On vs Seymour Events
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Audience area measurement
- 3D listening area modeling
- Speaker axis profiling
- Bluetooth laser distance finder integration
- Export to loudspeaker simulation software
- 14-day free trial
Read full descriptionHide 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
Seymour Events
Read full descriptionHide 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
Verdict
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
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.
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.
| Parameter | On | Seymour Events |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17 | 16.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | OK-Sound | Gregory Mena |
In-app purchases
On
- 14-day TrialFree
- Unlock App$149.99
Seymour Events
- Standard Plan Monthly$19.991 Month
- Pro Plan Monthly$29.991 Month
- Standard Plan Annual$149.001 Year
Show 1 moreShow fewer
- Pro Plan Annual$199.991 Year









