# SIA Events vs Arca Worker

The clearest difference is update cadence: Arca Worker at every 5 days against SIA Events's every 2 months. Arca Worker also leads on iOS requirement (15.1 vs 17.0). 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.

SIA Events ships an update every 2 months, Arca Worker every 5 days. The most recent releases landed on October 5, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SIA Events | Arca Worker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/sia-events/id6445898879/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 75 MB | 98 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Crain Communications, Inc.](https://appshunter.io/developer/563390291) | [Luiz Pereira](https://appshunter.io/developer/1887410144) |

## What reviewers say

### SIA Events

[App page](https://appshunter.io/ios/app/sia-events/id6445898879)

This official conference app connects registered attendees to event schedules, sponsors, and fellow participants. Engage in sessions with live Q&A, polls, and surveys for a richer on-site experience.

**Highlights:** Connect with attendees, Access conference agenda, Learn about sponsors, Live Q&A in sessions, Participate in polls and surveys

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

**In-app purchases:** none


### Arca Worker

[App page](https://appshunter.io/ios/app/arca-worker/id6761032048)

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

**In-app purchases:** none


## Frequently asked questions

### Is SIA Events free?

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

### Is Arca Worker free?

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

### Do SIA Events or Arca Worker have ads?

Neither SIA Events nor Arca Worker shows ads.

### Which is updated more often, SIA Events or Arca Worker?

SIA Events ships an update every 2 months, and Arca Worker every 5 days. Most recently, SIA Events was updated on October 5, 2026 and Arca Worker 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.*