# Rivvy vs knock(1)

The clearest difference is rating: knock(1) at 5.0 against Rivvy's 1.0. knock(1) also leads on ads (none vs shown) and monetization model (free vs ad-supported). Rivvy's advantage is update cadence (every 2 weeks vs every 2 months) and device support (3 vs 1). On price, ratings volume 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(1) holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Rivvy ships an update every 2 weeks, knock(1) every 2 months. The most recent releases landed on October 10, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Rivvy | knock(1) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/rivvy/id6443904127/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knock1/id6762497209/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 119 MB | 3 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Novvia LLC](https://appshunter.io/developer/1402076437) | [Jeffrey Cousens](https://appshunter.io/developer/1877690927) |

## What reviewers say

### Rivvy

[App page](https://appshunter.io/ios/app/rivvy/id6443904127)

Connect with other owners and enthusiasts of a specific electric vehicle brand. Track important vehicle details and discover more about your car. Engage in a community focused on shared interests.

**Highlights:** Vehicle detail tracking, Learn about your vehicle, Connect with other owners, Community interaction, Enthusiast engagement

**Features:** macOS Compatibility

**In-app purchases:** none


### knock(1)

[App page](https://appshunter.io/ios/app/knock1/id6762497209)

This utility app allows you to remotely open firewall ports on your server using a saved sequence of connection attempts from your iPhone. It supports TCP or UDP for each port and provides live feedback on the connection status.

**Highlights:** Save and reuse multiple host configurations, Per-port TCP or UDP selection, Configurable inter-packet delay, Live per-port result display, Native SwiftUI interface, No tracking or analytics

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Rivvy free?

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

### Is knock(1) free?

knock(1) is free to download, with no in-app purchases.

### Which has better reviews, Rivvy or knock(1)?

knock(1) is rated higher. Rivvy averages 1.0 out of 5 from 2 ratings, while knock(1) averages 5.0 from 1 ratings.

### Do Rivvy or knock(1) have ads?

Rivvy shows ads; knock(1) does not.

### Which is updated more often, Rivvy or knock(1)?

Rivvy ships an update every 2 weeks, and knock(1) every 2 months. Most recently, Rivvy was updated on October 10, 2026 and knock(1) on October 12, 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.*