# Knock Knock Pros vs Konstant Client Voice

The clearest difference is iOS requirement: Konstant Client Voice at 12.4 against Knock Knock Pros's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Knock Knock Pros ships an update weekly, Konstant Client Voice fortnightly. The most recent releases landed on September 17, 2026 and December 5, 2025 respectively.

## The numbers

| Metric | Knock Knock Pros | Konstant Client Voice |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | — |
| Size | 38 MB | 18 MB |
| Requires iOS | 15.1 | **12.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tim Sparks](https://appshunter.io/developer/1706824466) | [KONSTANT INFOSOLUTIONS PRIVATE LIMITED](https://appshunter.io/developer/1021879860) |

## 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


### Konstant Client Voice

[App page](https://appshunter.io/ios/app/konstant-client-voice/id6477390171)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Knock Knock Pros free?

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

### Is Konstant Client Voice free?

Konstant Client Voice is free to download, with no in-app purchases.

### Do Knock Knock Pros or Konstant Client Voice have ads?

Neither Knock Knock Pros nor Konstant Client Voice shows ads.

### Which is updated more often, Knock Knock Pros or Konstant Client Voice?

Knock Knock Pros ships an update weekly, and Konstant Client Voice fortnightly. Most recently, Knock Knock Pros was updated on September 17, 2026 and Konstant Client Voice on December 5, 2025.

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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.*