# ISM Event App vs CHAINge 2026

The clearest difference is update cadence: CHAINge 2026 at every 3 weeks against ISM Event App's every 3 months. CHAINge 2026 also leads on iOS requirement (15.6 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.

ISM Event App ships an update every 3 months, CHAINge 2026 every 3 weeks. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ISM Event App | CHAINge 2026 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 62 MB | 111 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Institute For Supply Management Inc.](https://appshunter.io/developer/710782888) | [APICS](https://appshunter.io/developer/705513117) |

## What reviewers say

### ISM Event App

[App page](https://appshunter.io/ios/app/ism-event-app/id1621581575)

**Features:** macOS Compatibility

**In-app purchases:** none


### CHAINge 2026

[App page](https://appshunter.io/ios/app/chainge-2026/id6805902664)

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

**In-app purchases:** none


## Frequently asked questions

### Is ISM Event App free?

ISM Event App is free to download, with no in-app purchases.

### Is CHAINge 2026 free?

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

### Do ISM Event App or CHAINge 2026 have ads?

Neither ISM Event App nor CHAINge 2026 shows ads.

### Which is updated more often, ISM Event App or CHAINge 2026?

ISM Event App ships an update every 3 months, and CHAINge 2026 every 3 weeks. Most recently, ISM Event App was updated on October 12, 2026 and CHAINge 2026 on October 3, 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.*