# Knock Knock Pros vs Stassify

The clearest difference is in-app purchases: Knock Knock Pros at none against Stassify's 5. Knock Knock Pros also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Stassify sells 5 in-app purchases, starting at $99.99 per month. Knock Knock Pros asks for nothing beyond the download.

Knock Knock Pros ships an update weekly, Stassify every 10 days. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Knock Knock Pros | Stassify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/knock-knock-pros/id6465991587/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Free | — |
| Size | 38 MB | 132 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Tim Sparks](https://appshunter.io/developer/1706824466) | [Jobstas Recruiting GmbH](https://appshunter.io/developer/1772630817) |

## What reviewers say

### Knock Knock Pros

[App page](https://appshunter.io/ios/app/knock-knock-pros/id6465991587)

Connect with skilled professionals for various home services, from plumbing and electrical work to cleaning and repairs. Easily book, track, and pay for services with a user-friendly interface and vetted providers.

**Highlights:** Wide range of services (196+ categories), GPS tracking for professionals, Easy and intuitive booking process, Vetted and trusted service providers, Flexible scheduling options, Secure in-app payments

**Features:** macOS Compatibility

**In-app purchases:** none


### Stassify

[App page](https://appshunter.io/ios/app/stassify/id6736607409)

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Plan | $99.99 | per month |
| Silver Package | $199.00 | per 2 months |
| Gold Package | $299.00 | per 3 months |
| Platinum Package | $499.00 | per 6 months |
| Flat Package | $799.99 | per year |


## Frequently asked questions

### Is Knock Knock Pros free?

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

### Is Stassify free?

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

### Do Knock Knock Pros or Stassify have ads?

Stassify shows ads; Knock Knock Pros does not.

### Which is updated more often, Knock Knock Pros or Stassify?

Knock Knock Pros ships an update weekly, and Stassify every 10 days. Most recently, Knock Knock Pros was updated on September 17, 2026 and Stassify on September 9, 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.*