# Yak - AI SIP Phone — AI, Multi-Account & Video

> AI-powered SIP softphone for business communication with on-device transcription and analysis. (iPhone/iPad app by Hatch Co., Ltd.)

- Source: https://appshunter.io/ios/app/yak-ai-sip-phone/id6763033863 (this page in markdown: same URL + `.md`)
- Developer: [Hatch Co., Ltd](https://appshunter.io/developer/1559120083)
- Category: Business, Utilities
- Price: Free with in-app purchases
- Rating: 2.30/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 19 MB
- Languages: French (France), American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Korean, European Spanish, Japanese, Russian
- Released: 2026-04-25
- Data updated: 2026-09-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/yak-ai-sip-phone/id6763033863/reviews.md

## What is Yak?

YakPhone — SIP Softphone with On-Device AI

Full-featured SIP client for iOS. Works with any SIP server — Asterisk, FreePBX, FreeSwitch, 3CX, and more.

SIP & CALLING
• UDP, TCP, and TLS registration with multiple accounts
• G.722 wideband audio; H.264 and VP8 video calls with picture-in-picture
• Audio codecs: Opus, G.711 (PCMU/PCMA), G.722, AMR-NB, AMR-WB
• Echo cancellation, automatic gain control, noise reduction, and jitter buffer built in
• Front/back camera flip during video calls; DTMF keypad for IVR navigation
• Native CallKit integration — incoming calls appear as standard system calls
• PushKit VoIP push — self-hosted PBX can trigger wake-on-call and missed call alerts
• Auto-answer — accept incoming calls automatically after a configurable delay
• Call forwarding — redirect unanswered calls to any SIP address or number

SECURITY & NETWORK
• Media encryption: DTLS-SRTP, SDES, ZRTP
• TLS transport with custom certificate support for SIP signaling
• STUN / TURN support for NAT traversal
• HMAC-SHA256 authentication for push relay

ON-DEVICE AI
• Download Whisper models (Q4 quantized) directly in-app
• Real-time call transcription — runs entirely on-device
• LLM-powered call summary and analysis — ask about recent calls
• No audio or transcripts ever uploaded

MANAGEMENT & LOGS
• iCloud backup for accounts and contacts
• SIP log viewer with filtering and export
• Local HTTP server — remotely configure or query the app over Wi-Fi (Pro)
• CLI mode — send JSON commands via TCP to control baresip in real time (Pro)
• Custom SIP User-Agent string

MULTILINGUAL
• English, 简体中文, 繁體中文, 日本語, 한국어, Français, Español, Русский

Pro features unlock with a one-time purchase — no subscription.

YakPhone requires a SIP account from your own provider or PBX.
It is not a standalone phone service.

Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- On-device AI for call transcription and summary
- Full-featured SIP client for multiple accounts
- Wideband audio and video call support
- Advanced security and network protocols
- Native CallKit integration
- iCloud backup for accounts and contacts

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Yak Pro | $9.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/yak-ai-sip-phone/id6763033863/reviews.md

### 1/5 — Pas abouti

*2026-08-26*

Impossible de parler dans le téléphone vers le Visio. Yak ne me demande jamais l’accès au micro et dans les parametrage le micro n’apparaît pas.
Pareil quand je suis en call pas de voyant orange en haut à droite…

### 1/5 — App full of bugs

*2026-05-03*

Won’t stay connected to sbc, and can only reconnect on hard close and open.

Terminates call on connection via sbc, firewall, nat reflection.

Linphone works just fine.

**Developer response:** I can't understand your comment. What you said is full of loopholes. It's actually a connectivity issue. The application ensures call quality with minimal resource usage. You can continue to use your favorite Linphone, Yak has a dedicated feedback channel for issues, so there's no need for this.

We will not maintain the backend connection through rogue means, and there are specialized methods to trigger incoming calls.

## Frequently asked questions about Yak

### Does Yak have ads?

Yak is ad-free, allowing for an uninterrupted user experience.

### What is the pricing for Yak?

Yak is free to download and use, with Pro features unlocked via a one-time purchase. There are no subscriptions.

### What devices does Yak support?

Yak is available on iPhone, iPad, and iPod devices.

### How often is Yak updated?

The latest version of Yak was released on June 23, 2026, indicating recent development and updates.

### What is the age rating for Yak?

Yak has an age rating of 4+, making it suitable for a wide range of users.

### Can Yak be used without a SIP provider?

No, Yak requires a SIP account from your own provider or PBX. It is not a standalone phone service.

### What kind of AI features does Yak offer?

Yak offers on-device AI for real-time call transcription and LLM-powered call summary and analysis, with no audio or transcripts uploaded.

### What SIP servers are compatible with Yak?

Yak is compatible with a wide range of SIP servers including Asterisk, FreePBX, FreeSwitch, and 3CX.

## Version history (last 5 releases)

### 1.2 — 2026-08-27

- Added a monthly Pro subscription with a 7-day free trial while retaining the permanent unlock option.
- Added permanent unlock access for active subscribers and improved purchase restoration.
- Improved entitlement registration for subscriptions, permanent purchases, and redeemed offer codes.
- Added Terms of Use and Privacy Policy links to the Pro upgrade screen.
- Added region-aware system calling support: CallKit outside mainland China and LiveCommunicationKit in mainland China.
- Improved App Store storefront detection when switching regions or store accounts.
- Fixed a crash when ending a call caused by SIP transport cleanup racing with active network callbacks.
- Improved SIP connection preservation after hangup so subsequent calls remain available.
- Updated Pro feature descriptions to reflect the active system calling integration.

### 1.1 — 2026-08-16

- Updated the core communication framework for improved call stability, security, and compatibility.
- Optimized iCloud backup and restore for faster, more reliable synchronization.
- Improved dialog loading and responsiveness for a smoother experience.

### 1.0.6 — 2026-08-15

- Added subscription plans and new free-trial options.
- Improved AI-powered real-time transcription for faster responses and lower latency.
- Fixed CLI mode to support all registered Baresip commands independently.
- Improved overall performance, stability, and user experience.

### 1.0.5 — 2026-06-23

Fix some known issues

### 1.0.3 — 2026-06-15

-Optimized the style of the dial pad
-Optimized some performance experience
-Fixed the issue where call records could not be cleared
-Fixed message push exceptions caused by token changes
-Add a message synchronization mechanism under the same Apple iCloud account

## More apps by Hatch Co., Ltd

- [Pocket Metal Detector](https://appshunter.io/ios/app/pocket-metal-detector/id6788618335)
- [ePassRead](https://appshunter.io/ios/app/epassread/id6793808554)

All apps by Hatch Co., Ltd: https://appshunter.io/developer/1559120083

## Related topics

[yak](https://appshunter.io/ios/topics/yak) · [sip pulse pro](https://appshunter.io/ios/topics/sip-pulse-pro) · [sip number](https://appshunter.io/ios/topics/sip-number) · [sip phone](https://appshunter.io/ios/topics/sip-phone)

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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 2026-09-01.*