# OC Trade vs ePROMIS

The clearest difference is update cadence: OC Trade at every 3 weeks against ePROMIS's every 4 months. OC Trade also leads on iOS requirement (13.0 vs 16.0). 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.

OC Trade ships an update every 3 weeks, ePROMIS every 4 months. The most recent releases landed on May 16, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | OC Trade | ePROMIS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Size | 36 MB | 65 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [ORIENTAL COPPER COMPANY LIMITED](https://appshunter.io/developer/1498887538) | [ePROMIS Solutions](https://appshunter.io/developer/1570262490) |

## What reviewers say

### OC Trade

[App page](https://appshunter.io/ios/app/oc-trade/id1498887539)

**In-app purchases:** none


### ePROMIS

[App page](https://appshunter.io/ios/app/epromis/id6464270450)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OC Trade free?

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

### Is ePROMIS free?

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

### Do OC Trade or ePROMIS have ads?

Neither OC Trade nor ePROMIS shows ads.

### Which is updated more often, OC Trade or ePROMIS?

OC Trade ships an update every 3 weeks, and ePROMIS every 4 months. Most recently, OC Trade was updated on May 16, 2026 and ePROMIS on September 17, 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.*