# AIChE Events vs OTC 2026

The clearest difference is update cadence: AIChE Events at every 4 months against OTC 2026's every 12 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.

AIChE Events ships an update every 4 months, OTC 2026 every 12 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | AIChE Events | OTC 2026 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (31 ratings)](https://appshunter.io/ios/app/aiche-events/id1014591548/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 4 months** | Every 12 months |
| Monetization | Ad-supported | — |
| Size | 148 MB | 52 MB |
| Requires iOS | 10.0 | 10.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [AIChE](https://appshunter.io/developer/726639920) | [Offshore Technology Conference](https://appshunter.io/developer/587442585) |

## What reviewers say

### AIChE Events

[App page](https://appshunter.io/ios/app/aiche-events/id1014591548)

This app connects chemical engineering professionals worldwide. Access resources, connect with colleagues, and find learning opportunities to advance your career in chemical engineering.

**Highlights:** Professional networking, Access to chemical engineering resources, Learning opportunities, Global community connection, Career advancement tools

**Features:** macOS Compatibility

**In-app purchases:** none


### OTC 2026

[App page](https://appshunter.io/ios/app/otc-2026/id6743226657)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AIChE Events free?

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

### Is OTC 2026 free?

OTC 2026 is free to download, with no in-app purchases.

### Do AIChE Events or OTC 2026 have ads?

Both AIChE Events and OTC 2026 show ads.

### Which is updated more often, AIChE Events or OTC 2026?

AIChE Events ships an update every 4 months, and OTC 2026 every 12 months. Most recently, AIChE Events was updated on November 1, 2026 and OTC 2026 on October 30, 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.*