# KaNKaN vs NextNavi

The clearest difference is review sentiment: KaNKaN at 86% against NextNavi's 55%. KaNKaN also leads on price ($2.99 vs $3.99). NextNavi's advantage is update cadence (every 5 days vs every 101 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

KaNKaN costs $2.99 and NextNavi $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

KaNKaN ships an update every 101 months, NextNavi every 5 days. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | KaNKaN | NextNavi |
| --- | --- | --- |
| Price | **$2.99** | $3.99 |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/nextnavi/id6446080475/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | **85.7% of reviews** | 55.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 101 months | **Every 5 days** |
| Monetization | Paid | Paid |
| Size | 29 MB | 52 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Kaji Takatsugu](https://appshunter.io/developer/465688467) | [建玮 朱](https://appshunter.io/developer/1675815565) |

## What reviewers say

### KaNKaN

[App page](https://appshunter.io/ios/app/kankan/id1084225678)

This app simulates Japanese fire truck sirens and flashing lights. It allows users to record and play back custom sounds, featuring different siren patterns and bell sounds. Note that it does not function as a real siren amplifier and legal use of siren sounds should be confirmed.

**Highlights:** Simulated fire truck sirens, Flashing light patterns, Custom sound recording, Preset siren and bell sounds, Left/right turn sound effects, Adjustable siren volume

**Features:** macOS Compatibility

**In-app purchases:** none


### NextNavi

[App page](https://appshunter.io/ios/app/nextnavi/id6446080475)

This utility app provides a dedicated browser for playing web-based games. It offers customization options for your screen and ensures a consistent landscape view for a desktop-like gaming experience.

**Highlights:** Dedicated browser for web games, Screen customization options, Always landscape desktop view, Optimized for browser gaming

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

**In-app purchases:** none


## Frequently asked questions

### Is KaNKaN free?

KaNKaN costs $2.99, with no in-app purchases.

### Is NextNavi free?

NextNavi costs $3.99, with no in-app purchases.

### Do KaNKaN or NextNavi have ads?

Neither KaNKaN nor NextNavi shows ads.

### Which is updated more often, KaNKaN or NextNavi?

KaNKaN ships an update every 101 months, and NextNavi every 5 days. Most recently, KaNKaN was updated on October 17, 2026 and NextNavi on October 13, 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.*