# DataCertify vs Open OAB RJ

The clearest difference is in-app purchases: Open OAB RJ at none against DataCertify's 1. DataCertify's advantage is ads (none vs shown) and update cadence (every 4 days vs fortnightly). On price and iOS requirement there is nothing between them.

Both are free to download. DataCertify sells 1 one-off in-app purchase. Open OAB RJ asks for nothing beyond the download.

DataCertify ships an update every 4 days, Open OAB RJ fortnightly. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | DataCertify | Open OAB RJ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 138 MB | 10 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | +17 | 12+ |
| Developer | [DataCertify](https://appshunter.io/developer/1753131820) | [UNIVERSIA](https://appshunter.io/developer/451726993) |

## What reviewers say

### DataCertify

[App page](https://appshunter.io/ios/app/datacertify/id6504635320)

Securely capture and preserve digital evidence like social media posts and website content. Leverage blockchain technology for reliable and valid digital proof.

**Highlights:** Digital evidence identification, Secure evidence collection, Digital proof preservation, Blockchain integration, WhatsApp conversation preservation, Social media post capture, Website content archiving

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Crédito | $12.99 | one-time |


### Open OAB RJ

[App page](https://appshunter.io/ios/app/open-oab-rj/id6749377666)

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

**In-app purchases:** none


## Frequently asked questions

### Is DataCertify free?

DataCertify is free to download, with in-app purchases available.

### Is Open OAB RJ free?

Open OAB RJ is free to download, with no in-app purchases.

### Do DataCertify or Open OAB RJ have ads?

Open OAB RJ shows ads; DataCertify does not.

### Which is updated more often, DataCertify or Open OAB RJ?

DataCertify ships an update every 4 days, and Open OAB RJ fortnightly. Most recently, DataCertify was updated on September 23, 2026 and Open OAB RJ on September 21, 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.*