# GuardPro vs Doc Black Ink

The clearest difference is review sentiment: Doc Black Ink at 100% against GuardPro's 21%. GuardPro's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (7.0 vs 11.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

GuardPro ships an update every 3 weeks, Doc Black Ink every 2 months. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | GuardPro | Doc Black Ink |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 21.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 35 MB | 240 MB |
| Requires iOS | **7.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [洪波 王](https://appshunter.io/developer/670319795) | [Doc Black Ink Ltd](https://appshunter.io/developer/1722403196) |

## What reviewers say

### GuardPro

[App page](https://appshunter.io/ios/app/guardpro/id994924227)

This free video surveillance client utilizes an advanced P2P protocol for live viewing and remote control of cameras. It supports PTZ control, snapping photos, listening in, and remote parameter settings, along with querying alerts and playback.

**Highlights:** Live 720P H.264 video streaming, PTZ camera control, Snapshot functionality, Audio listening, Remote parameter settings, Alert query and playback

**Features:** Vision Pro support

**In-app purchases:** none


### Doc Black Ink

[App page](https://appshunter.io/ios/app/doc-black-ink/id6474721638)

Discover tattoo services, book appointments with artists, and explore customizable options. Purchase gift cards and merchandise, and securely submit payment details.

**Highlights:** Browse tattoo service menus, Book permanent makeup or tattoos, View business hours and contact info, Purchase packages and gift cards, Secure payment submission

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is GuardPro free?

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

### Is Doc Black Ink free?

Doc Black Ink is free to download, with no in-app purchases.

### Do GuardPro or Doc Black Ink have ads?

Neither GuardPro nor Doc Black Ink shows ads.

### Which is updated more often, GuardPro or Doc Black Ink?

GuardPro ships an update every 3 weeks, and Doc Black Ink every 2 months. Most recently, GuardPro was updated on October 8, 2026 and Doc Black Ink on October 11, 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.*