# SimStock vs DYAX

The clearest difference is ads: DYAX at none against SimStock's shown. DYAX also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, 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.

SimStock ships an update every 2 days, DYAX daily. Both last shipped on September 24, 2026.

## The numbers

| Metric | SimStock | DYAX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 days | **Daily** |
| Size | 10 MB | 13 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [jeeyong lee](https://appshunter.io/developer/1886160887) | [CHAN HYUK LEE](https://appshunter.io/developer/1810607523) |

## What reviewers say

### SimStock

[App page](https://appshunter.io/ios/app/simstock/id6761748603)

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

**In-app purchases:** none


### DYAX

[App page](https://appshunter.io/ios/app/dyax/id6771761697)

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

**In-app purchases:** none


## Frequently asked questions

### Is SimStock free?

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

### Is DYAX free?

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

### Do SimStock or DYAX have ads?

SimStock shows ads; DYAX does not.

### Which is updated more often, SimStock or DYAX?

SimStock ships an update every 2 days, and DYAX daily. Most recently, SimStock was updated on September 24, 2026 and DYAX on September 24, 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.*