# KnocKnocK vs FlowEv

The clearest difference is rating: KnocKnocK at 3.4 against FlowEv's 2.3. KnocKnocK also leads on review sentiment (29% vs 0%) and iOS requirement (12 vs 15.5). FlowEv's advantage is update cadence (every 3 days vs every 6 weeks). On price, ratings volume, 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.

KnocKnocK holds the better App Store score, 3.4 against 2.3. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews point the same way: 29% of KnocKnocK's written reviews are positive against 0% of FlowEv's.

KnocKnocK ships an update every 6 weeks, FlowEv every 3 days. The most recent releases landed on September 19, 2026 and June 19, 2026 respectively.

## The numbers

| Metric | KnocKnocK | FlowEv |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (8 ratings)](https://appshunter.io/ios/app/knocknock-home-services/id979512618/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/flowev/id6737880195/reviews) |
| Number of ratings | **8** | 3 |
| Positive reviews | **28.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | Free | Free |
| Size | 77 MB | 104 MB |
| Requires iOS | **12** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KnocKnocK Technologies Asia Pte. Ltd.](https://appshunter.io/developer/1024344838) | [Triple J Technologies LLC](https://appshunter.io/developer/1760108628) |

## What reviewers say

### KnocKnocK

[App page](https://appshunter.io/ios/app/knocknock-home-services/id979512618)

This app connects users with a variety of home services, including laundry, dry cleaning, house cleaning, and air-con maintenance. It offers convenient doorstep collection and delivery, competitive pricing, and a dedicated customer support team.

**Highlights:** Laundry & Dry Cleaning, House & Office Cleaning, Upholstery Cleaning, Air-con Cleaning, Handyman Services, Doorstep Collection & Delivery, Customer Support

**Features:** macOS Compatibility

**In-app purchases:** none


### FlowEv

[App page](https://appshunter.io/ios/app/flowev/id6737880195)

Initiate electric vehicle charging instantly by scanning a QR code or using NFC. The app automatically starts the charging process and sends notifications until completion, offering a seamless and hands-free experience.

**Highlights:** Instant charging activation, QR code scanning, NFC functionality, Automatic charging start, Real-time charging notifications, Hassle-free user experience

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is KnocKnocK free?

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

### Is FlowEv free?

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

### Which has better reviews, KnocKnocK or FlowEv?

KnocKnocK is rated higher. KnocKnocK averages 3.4 out of 5 from 8 ratings, while FlowEv averages 2.3 from 3 ratings.

### Do KnocKnocK or FlowEv have ads?

Neither KnocKnocK nor FlowEv shows ads.

### Which is updated more often, KnocKnocK or FlowEv?

KnocKnocK ships an update every 6 weeks, and FlowEv every 3 days. Most recently, KnocKnocK was updated on September 19, 2026 and FlowEv on June 19, 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.*