# MizuPhone

> VoIP softphone for making calls via any SIP provider. (iPhone/iPad app by Mizutech.)

- Source: https://appshunter.io/ios/app/mizuphone/id483685573 (this page in markdown: same URL + `.md`)
- Developer: [Mizutech](https://appshunter.io/developer/483685576)
- Category: Social Networking
- Price: Free
- Rating: 2.30/5 from 3 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 14 MB
- Languages: American English, Catalan, Croatian, Czech, Danish, Dutch, French (France), German (Germany), Hebrew, Italian and 9 more
- Released: 2011-12-21
- Data updated: 2026-08-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mizuphone/id483685573/reviews.md

## What is MizuPhone?

Call your friends on VoIP.

MizuPhone is a free customizable SIP softphone that lets you call your friends using any VoIP provider.

Type your VoIP provider server address in “Server” input box, your SIP account Username and Password, and you're ready to go.

Supported features:
-Initiate and receive VoIP calls and chat over any connection above 15 kbits (GPRS, EDGE, WiFi, 3G, 4G, 5G)
-SIP over UDP, TCP and TLS
-Push notifications for always availability
-CallKit native call integration
-All the popular VoIP codec's are supported with echo cancellation including G.729 and OPUS wideband
-PBX features such as DTMF, hold, transfer, conference, caller-id, call-wait, credit and rating display
-A list of SIP related RFC’s and call-control features
-Integration with server API such as new user registration, callback, SMS and others
-Optional branding and customization

## Key features

- VoIP calls and chat
- Supports any connection (GPRS to 5G)
- SIP over UDP, TCP, and TLS
- Push notifications
- CallKit integration
- Multiple VoIP codecs with echo cancellation
- PBX features (hold, transfer, conference)

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/mizuphone/id483685573/reviews.md

### 1/5 — App keeps crashing iPhone XR - iOS 15.1

*2021-12-09*

This app is crashing and not working at all after the recent update to iOS 15. 

Can someone please look at it.

### 1/5 — Crashes on startup

*2021-01-10*

Crashes on startup

### 1/5 — So many bugs

*2018-11-10*

The quality of voice is perfect but there are major bugs in this app; 
1- you can’t disconnect the call and the other party should hang up. 
2- when you call someone, the other party sees weird numbers instead of your assigned number
3- most of the time you don’t have access to the call pad and don’t know who is calling. Moreover, you can’t answer the call. You hear the ring but since there is no pad to answer, you just can’t answer. It’s ridiculous. I just rate it as lowest phone app! Sorry

### 1/5 — Doesn’t work

*2018-05-21*

Doesn’t work: doesn’t connect to server, doesn’t have options for manual connect: port, protocol. Not same as at screenshots at website.

### 5/5 — Greatest voip app available

*2016-09-07*

I have used many voip apps over the years including Bria which is one of the best, but the sound quality of Mizu is better than all of them, even without the use of codec G729. 
The strength of it, is its ability to automatically adjust itself to the your network conditions and phone capabilities.
The only complaint I have is the fact that the iPone version has much less settings than the Andriod version and there is no obvious way to purchase the Pro version.

### 5/5 — Teesta3

*2015-04-21*

I need more hellpy

## Frequently asked questions about MizuPhone

### What is MizuPhone?

MizuPhone is a free, customizable SIP softphone that enables users to make and receive VoIP calls and chat using any VoIP provider. It supports various internet connections and offers advanced communication features.

### What devices does MizuPhone support?

MizuPhone is available for iPhone and iPod devices. It was last updated on April 10, 2020, with version 3.5.04.12.

### What are the minimum connection requirements for MizuPhone?

MizuPhone can initiate and receive VoIP calls and chat over any connection above 15 kbits, including GPRS, EDGE, WiFi, 3G, 4G, and 5G.

### Does MizuPhone support push notifications?

Yes, MizuPhone supports push notifications, ensuring users are always available for incoming calls and messages. This feature enhances the app's reliability for communication.

### What PBX features does MizuPhone offer?

MizuPhone includes popular PBX features such as DTMF, hold, transfer, conference calls, caller-id display, call-wait, and credit/rating display, providing a comprehensive calling experience.

### How is MizuPhone rated by users?

MizuPhone has a rating of 2.3 stars based on 3 user ratings. This indicates a mixed reception from its user base.

### Is MizuPhone suitable for children?

MizuPhone has an age rating of 4+, making it suitable for younger users. The app focuses on communication features.

### Does MizuPhone have ads?

No, MizuPhone does not contain advertisements. The app is free to use without any ad interruptions.

## Version history (last 5 releases)

### 3.5.04.12 — 2020-04-10

- improved PushKit notifications for incoming calls
- better call quality
- GUI improvements for iPhone 11, Pro, Pro Max
- improved stability

### 3.4.0710 — 2019-07-12

- improved PushKit notifications for incoming calls
- TLS/SRTP support (SIPS standard)
- CallKit integration
- improved stability
- GUI improvements for iPhone X, XR and XS
- auto provisioning improvements

### 3.3.0913 — 2018-09-14

New features:
- PushKit notifications - wake up soft phone when an incoming VoIP call is received 
- IPv6 support

Bug fixes.

### 3.0.0429 — 2016-06-05

This version comes with better 64bit support, optimized audio processing, SIP signaling over TCP (optional), better auto-provisioning, numerous bug fixes and improvements.

### 2.7 — 2015-02-10

bug fixes

## Apps similar to MizuPhone

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [VaxPhone - SIP based softphone](https://appshunter.io/ios/app/vaxphone-sip-based-softphone/id894003707) | 5.0 (1) | Free | Social Networking |
| [PortSIP UC](https://appshunter.io/ios/app/portsip-uc/id426903818) | 4.1 (93) | Free | Social Networking |
| [PortSIP ONE](https://appshunter.io/ios/app/portsip-one/id6504066513) | — | Free | Social Networking |
| [MAXLink+](https://appshunter.io/ios/app/maxlink-plus/id6450607180) | — | Free | Social Networking |
| [Siskin IM](https://appshunter.io/ios/app/siskin-im/id1153516838) | 3.7 (33) | Free | Social Networking |
| [Linphone](https://appshunter.io/ios/app/linphone/id360065638) | 2.6 (8) | Free | Social Networking |

## Related topics

[mizudroid](https://appshunter.io/ios/topics/mizudroid) · [portsip softphone](https://appshunter.io/ios/topics/portsip-softphone)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-01.*