# Black Dog Data vs PassKard

The clearest difference is update cadence: PassKard at every 2 days against Black Dog Data's every 13 months. PassKard also leads on device support (4 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Black Dog Data ships an update every 13 months, PassKard every 2 days. The most recent releases landed on October 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Black Dog Data | PassKard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/black-dog-data/id6503287098/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 87 MB | 87 MB |
| Requires iOS | 16.0 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Jack Geisler](https://appshunter.io/developer/1748745377) | [Pradeep Kumar](https://appshunter.io/developer/1585186331) |

## What reviewers say

### Black Dog Data

[App page](https://appshunter.io/ios/app/black-dog-data/id6503287098)

This app allows you to collect, manage, and sell your online activity data. Securely capture your phone's activity, enhance it for market value, and sell it to trusted buyers. Earn money monthly by taking control of your personal data.

**Highlights:** Seamless data collection, Encrypted data storage, Smart data post-processing, Data marketplace for selling, Monthly payouts

**Features:** macOS Compatibility

**In-app purchases:** none


### PassKard

[App page](https://appshunter.io/ios/app/passkard/id6808698579)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Black Dog Data free?

Black Dog Data is free to download, with no in-app purchases.

### Is PassKard free?

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

### Do Black Dog Data or PassKard have ads?

Neither Black Dog Data nor PassKard shows ads.

### Which is updated more often, Black Dog Data or PassKard?

Black Dog Data ships an update every 13 months, and PassKard every 2 days. Most recently, Black Dog Data was updated on October 9, 2026 and PassKard on October 31, 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.*