# Blink WebRTC — Open, federated SIP messaging

> Federated SIP client for secure audio, video, messaging, and file transfers. (iPhone/iPad app by AG Projects.)

- Source: https://appshunter.io/ios/app/blink-webrtc/id1489960733 (this page in markdown: same URL + `.md`)
- Developer: [AG Projects](https://appshunter.io/developer/404360418)
- Category: Business, Productivity
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 50 MB
- Languages: American English
- Released: 2020-08-27
- Data updated: 2026-08-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/blink-webrtc/id1489960733/reviews.md

## What is Blink WebRTC?

Open, federated SIP messaging

* 1-to-1 audio and video calls
* Receive calls from web browsers
* Multiparty conferencing for all media
* Telephony features
* Rich messaging (remote deletion, editing, replies, reactions)
* File sharing to and from other mobile applications
* End-to-end encryption for all media (zRTP and PGP)
* Location sharing (meet-me, caregiver tracking)
* Screen sharing with remote pointer support
* Support for phones and tablets in landscape and portrait modes
* Synchronization between multiple devices (media and contacts)
* History management and data export

## Key features

- Audio and video calls
- SIP messaging
- Audio call recording
- Advanced file transfers
- End-to-end encryption
- Multiparty conferencing

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/blink-webrtc/id1489960733/reviews.md

### 5/5 — Best video conferencing app

*2020-08-28*

Image and sound quality is not matched by any other competitor. Very light weight and reliable. Highly recommend.

## Frequently asked questions about Blink WebRTC

### What is Sylk Mobile?

Sylk Mobile is an open, federated SIP messaging and video conferencing client. It allows for secure audio and video calls, messaging, and file transfers using the SIP protocol.

### Does Sylk Mobile have ads?

No, Sylk Mobile does not contain advertisements. It is a free application with no ads.

### What devices support Sylk Mobile?

Sylk Mobile is available for iPhone, iPad, and iPod devices.

### How secure is Sylk Mobile?

Sylk Mobile offers end-to-end encryption for all media, ensuring secure communication for calls, messages, and file transfers.

### Can I record calls with Sylk Mobile?

Yes, Sylk Mobile supports audio call recording, allowing you to save important conversations.

### Does Sylk Mobile support multiple devices?

Yes, Sylk Mobile supports multiple devices, enabling you to stay connected across your preferred devices.

### What is the age rating for Sylk Mobile?

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

### How often is Sylk Mobile updated?

The latest version of Sylk Mobile is 5.6.1, last updated on May 20, 2026. This indicates a commitment to regular updates and improvements.

## Version history (last 5 releases)

### 8.3.9 — 2026-08-25

Location sharing bug fixes

### 8.3.8 — 2026-08-24

Bug fixes

### 8.3.6 — 2026-08-22

* Improve pagination of older messages
  * Registration retry backoff
  * Fix sanitize email and sip addresses separately
  * Logs modal fixes
  * Auto start camera when contact is caregiver
  * Replace hand with icon for screen pointer
  * Screen sharing fixes
  * Added video zoom and slow bandwidth detection
  * Do not show pointer if not supported by remote screen

### 8.3.5 — 2026-08-22

* Added confirm modal for request location
 * Hide Contact menu items that have session buttons
 * Fix wrong sampling for audio recordings of PSTN calls
 * Fix for lookup photos of contacts
 * Migrate to location sharing v2 envelope

### 8.3.3 — 2026-08-20

* Fixes for handling of phone numbers
* Do not allow unsolicited public key push to create a contact
* Show intervals when request for location inside modal
* Don't use proximity sensor during video calls
* Fixes for on answering a second call while another is active
* Fix replicating one shot locations

## Apps similar to Blink WebRTC

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Telos Infinity® VIP](https://appshunter.io/ios/app/telos-infinity-vip/id1576873588) | — | Free | Business |
| [Allworx Reach 5](https://appshunter.io/ios/app/allworx-reach-5/id1381491412) | 1.9 (107) | Free | Business |
| [Advanced Mobile](https://appshunter.io/ios/app/advanced-mobile/id1514873173) | — | Free | Business |
| [uQall](https://appshunter.io/ios/app/uqall/id1553025840) | 3.5 (8) | Free | Business |
| [TLK Configuration](https://appshunter.io/ios/app/tlk-configuration/id6451000535) | 4.2 (5) | Free | Business |

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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 2026-08-25.*