# Opco Client Access mobile app vs Stock Proof

The clearest difference is ads: Opco Client Access mobile app at none against Stock Proof's shown. Stock Proof's advantage is update cadence (every 10 days vs every 2 months) and iOS requirement (13.0 vs 15.6). On price, 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.

Opco Client Access mobile app ships an update every 2 months, Stock Proof every 10 days. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Opco Client Access mobile app | Stock Proof |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (39 ratings)](https://appshunter.io/ios/app/opco-client-access-mobile-app/id1049902773/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 65 MB | 20 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oppenheimer and Co. Inc.](https://appshunter.io/developer/1049902772) | [StockProof LLC](https://appshunter.io/developer/1696556725) |

## What reviewers say

### Opco Client Access mobile app

[App page](https://appshunter.io/ios/app/opco-client-access-mobile-app/id1049902773)

Access your Oppenheimer & Co. Inc. account information, view holdings and balances, and review recent activity. Get the latest research, market commentary, and analyst information. Manage your profile and easily contact your financial advisor.

**Highlights:** Account summary and holdings, Balances and recent activity, Access account statements, Latest published research, Market commentary, Profile management, Contact financial advisor

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

**In-app purchases:** none


### Stock Proof

[App page](https://appshunter.io/ios/app/stock-proof/id6451097907)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Opco Client Access mobile app free?

Opco Client Access mobile app is free to download, with no in-app purchases.

### Is Stock Proof free?

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

### Do Opco Client Access mobile app or Stock Proof have ads?

Stock Proof shows ads; Opco Client Access mobile app does not.

### Which is updated more often, Opco Client Access mobile app or Stock Proof?

Opco Client Access mobile app ships an update every 2 months, and Stock Proof every 10 days. Most recently, Opco Client Access mobile app was updated on October 24, 2026 and Stock Proof on October 5, 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.*