# DataCertify vs Tank Control

The clearest difference is in-app purchases: Tank Control at none against DataCertify's 1. DataCertify's advantage is update cadence (every 4 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

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

DataCertify ships an update every 4 days, Tank Control every 3 months. The most recent releases landed on September 23, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | DataCertify | Tank Control |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 138 MB | 38 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | +17 | 4+ |
| Developer | [DataCertify](https://appshunter.io/developer/1753131820) | [Your Way Digital Ltda](https://appshunter.io/developer/1477276215) |

## 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 |


### Tank Control

[App page](https://appshunter.io/ios/app/tank-control/id6774686008)

**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 Tank Control free?

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

### Do DataCertify or Tank Control have ads?

Neither DataCertify nor Tank Control shows ads.

### Which is updated more often, DataCertify or Tank Control?

DataCertify ships an update every 4 days, and Tank Control every 3 months. Most recently, DataCertify was updated on September 23, 2026 and Tank Control on September 14, 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.*