DFI vs TRB 2025
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DFI
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An international association of contractors, engineers, manufacturers, suppliers, academics and owners in the deep foundations industry. Our multidisciplinary membership creates a consensus voice and a common vision for continual improvement in the planning, design and construction of deep foundations and excavation. This container app is a home to all our corporate events and is meant to showcase the same throughout its lifespan.
TRB 2025
Access the full program for a major transportation conference, including sessions, presentations, and exhibitor information. Plan your schedule, find practical meeting details, and stay updated on news and events. Most features are available offline after initial data download.
- Access all sessions and presentations
- Browse by day, subject, and speaker
- Create personalized meeting calendar
- Find exhibitor information
- Offline access to conference data
- View abstracts and posters
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The Transportation Research Board (TRB) 104th Annual Meeting will be held January 5 – 9, 2025, at the Walter E. Washington Convention Center, in Washington, D.C. The information-packed program is expected to attract transportation professionals from around the world. The meeting program will cover all transportation modes, with more than 3,000 presentations in over 600 sessions and workshops, addressing topics of interest to policy makers, administrators, practitioners, researchers, and representatives of government, industry, and academic institutions. The mobile app will provide registered attendees with access to all sessions, presentations, posters, abstracts, exhibitors & maps. Browse sessions by day, subject area, types, & speaker. Create your personalized ‘My Meeting’ calendar of events (synchronized with your online Interactive Program Planner). Find practical Annual Meeting information and stay informed on breaking news and special events. Before first use, you'll need to download the latest conference data. Afterwards, you can use most of the app offline – although updates will be available regularly before and during the Annual Meeting. This app is provided by the Transportation Research Board of the National Academies of Sciences, Engineering, and Medicine and is only accessible to registrants for the TRB Annual Meeting.
Screenshots
Verdict
The clearest difference is update cadence: TRB 2025 at weekly against DFI's every 11 months. On price, ads, 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.
DFI ships an update every 11 months, TRB 2025 weekly. The most recent releases landed on August 3, 2026 and September 10, 2026 respectively.
| Parameter | DFI | TRB 2025 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 11 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.5 — better |
| Further details — not scored | ||
| Size | 57 MB | 105 MB |
| Age rating | 17+ | 4+ |
| Developer | Deep Foundations Institute, Inc. | National Academy of Sciences (Apps) |
In-app purchases
DFI
No in-app purchases
TRB 2025
No in-app purchases









