# PiPO vs コエマモ

The clearest difference is price: コエマモ at Free against PiPO's $2.99. コエマモ also leads on update cadence (weekly vs every 14 months). PiPO's advantage is review sentiment (71% vs 46%) and iOS requirement (7.1 vs 13.0). On ads, in-app purchases and device support there is nothing between them.

コエマモ is free to download; PiPO costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PiPO ships an update every 14 months, コエマモ weekly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | PiPO | コエマモ |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pipo/id983719927/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **71.4% of reviews** | 46.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Weekly** |
| Monetization | Paid | **Freemium** |
| Size | 39 MB | 88 MB |
| Requires iOS | **7.1** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Kaji Takatsugu](https://appshunter.io/developer/465688467) | [ALTROBO CO., LTD.](https://appshunter.io/developer/1758695679) |

## What reviewers say

### PiPO

[App page](https://appshunter.io/ios/app/pipo/id983719927)

This app simulates Japanese ambulance sirens and emergency vehicle sounds. It features recorded siren sounds, voice recordings, and a flashing light effect. It is not a real siren amplifier but a sound playback application.

**Highlights:** Ambulance siren sounds, Emergency vehicle voice recordings, Record and playback custom audio, Flashing light effect, Automatic siren function

**Features:** macOS Compatibility

**In-app purchases:** none


### コエマモ

[App page](https://appshunter.io/ios/app/id6566182778)

This safety app offers five features for crime prevention and emergencies. It includes simulated male voice responses for intercoms, fake calls to deter threats, a loud panic alarm with SOS, emergency notifications with location sharing, and a feature to signal for help in situations like harassment.

**Highlights:** Simulated male voice responses, Fake call feature, Panic alarm with SOS, Emergency notifications with location, Harassment prevention signal, Giftable premium plan

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

**In-app purchases:** none


## Frequently asked questions

### Is PiPO free?

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

### Is コエマモ free?

コエマモ is free to download, with no in-app purchases.

### Do PiPO or コエマモ have ads?

Neither PiPO nor コエマモ shows ads.

### Which is updated more often, PiPO or コエマモ?

PiPO ships an update every 14 months, and コエマモ weekly. Most recently, PiPO was updated on November 1, 2026 and コエマモ on October 30, 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.*