Tie Grading Guide vs SEI Conferences
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tie Grading Guide
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The RTA Tie Grading Guide offers detailed information and training on specifications, grades and limiting defects for preservative treated wood rail ties.
SEI Conferences
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The official app for the Structural Engineering Institute of ASCE (SEI). It will be used for Structures Congress and ETS Conference. The app will allow you to sign-in and favorite sessions or presentations allowing you to create your own custom itinerary. Filter the sessions, presentations, or participants to drill down and find the information you are looking for. Post on the social feed for the conference to engage with your community and presenters.
Screenshots
Verdict
The clearest difference is ads: SEI Conferences at none against Tie Grading Guide's shown. SEI Conferences also leads on update cadence (every 3 weeks vs every 13 months) and iOS requirement (11.0 vs 13.0). On price, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Tie Grading Guide ships an update every 13 months, SEI Conferences every 3 weeks. The most recent releases landed on September 25, 2026 and October 1, 2026 respectively.
| Parameter | Tie Grading Guide | SEI Conferences |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 13 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 38 MB |
| Age rating | 12+ | 4+ |
| Developer | Western Wood Preservers Institute | American Society of Civil Engineers |
In-app purchases
Tie Grading Guide
No in-app purchases
SEI Conferences
No in-app purchases
Questions
Is Tie Grading Guide free?
Is SEI Conferences free?
Do Tie Grading Guide or SEI Conferences have ads?
Which is updated more often, Tie Grading Guide or SEI Conferences?
Other comparisons
