# DFI vs TRB 2025

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.

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.

## The numbers

| Metric | DFI | TRB 2025 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/trb-2025/id6737839817/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | — | Free |
| Size | 57 MB | 105 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Deep Foundations Institute, Inc.](https://appshunter.io/developer/1385246120) | [National Academy of Sciences (Apps)](https://appshunter.io/developer/648600968) |

## What reviewers say

### DFI

[App page](https://appshunter.io/ios/app/dfi-finding-common-ground/id1568544738)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


### TRB 2025

[App page](https://appshunter.io/ios/app/trb-2025/id6737839817)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DFI free?

DFI is free to download, with no in-app purchases.

### Is TRB 2025 free?

TRB 2025 is free to download, with no in-app purchases.

### Do DFI or TRB 2025 have ads?

Neither DFI nor TRB 2025 shows ads.

### Which is updated more often, DFI or TRB 2025?

DFI ships an update every 11 months, and TRB 2025 weekly. Most recently, DFI was updated on August 3, 2026 and TRB 2025 on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*