# DFI vs ASDSO Conferences

DFI and ASDSO Conferences 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.

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, ASDSO Conferences every 6 months. The most recent releases landed on August 3, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | DFI | ASDSO Conferences |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (30 ratings)](https://appshunter.io/ios/app/asdso-conferences/id6462920557/reviews)** |
| Number of ratings | — | **30** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 months** |
| Monetization | — | Free |
| Size | 57 MB | 94 MB |
| Requires iOS | 15.6 | **14** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Deep Foundations Institute, Inc.](https://appshunter.io/developer/1385246120) | [Association of State Dam Safety Officials Inc](https://appshunter.io/developer/1393175455) |

## 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


### ASDSO Conferences

[App page](https://appshunter.io/ios/app/asdso-conferences/id6462920557)

This app connects conference attendees with speakers, exhibitors, and sponsors. Review the agenda, access presentation papers, and take notes to email yourself. Designed exclusively for event participants.

**Highlights:** Connect with attendees, speakers, exhibitors, sponsors, Review conference agenda, View conference papers and presentations, Take notes, Email notes to yourself

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

**In-app purchases:** none


## Frequently asked questions

### Is DFI free?

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

### Is ASDSO Conferences free?

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

### Do DFI or ASDSO Conferences have ads?

Neither DFI nor ASDSO Conferences shows ads.

### Which is updated more often, DFI or ASDSO Conferences?

DFI ships an update every 11 months, and ASDSO Conferences every 6 months. Most recently, DFI was updated on August 3, 2026 and ASDSO Conferences on September 20, 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.*