# Cidade Pública vs DataCertify

The clearest difference is in-app purchases: Cidade Pública at none against DataCertify's 1. Cidade Pública also leads on iOS requirement (13.0 vs 15.0). DataCertify's advantage is update cadence (every 4 days vs every 6 months). On price, review sentiment, ads and device support there is nothing between them.

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

Cidade Pública ships an update every 6 months, DataCertify every 4 days. The most recent releases landed on September 16, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Cidade Pública | DataCertify |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 16 MB | 138 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +17 |
| Developer | [Publica tecnologia ltda](https://appshunter.io/developer/1480389348) | [DataCertify](https://appshunter.io/developer/1753131820) |

## What reviewers say

### Cidade Pública

[App page](https://appshunter.io/ios/app/cidade-publica/id1480389349)

Access municipal services and documents digitally from your smartphone. Manage personal, property, and business-related information, including tax payments and permits, with ease.

**Highlights:** Digital municipal services, Access personal documents, Manage property information, Business permit and invoice access, Generate IPTU tax slips, View debt history

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Cidade Pública free?

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

### Is DataCertify free?

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

### Do Cidade Pública or DataCertify have ads?

Neither Cidade Pública nor DataCertify shows ads.

### Which is updated more often, Cidade Pública or DataCertify?

Cidade Pública ships an update every 6 months, and DataCertify every 4 days. Most recently, Cidade Pública was updated on September 16, 2026 and DataCertify on September 23, 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.*