# OnSIP vs Blink WebRTC

The clearest difference is review sentiment: Blink WebRTC at 100% against OnSIP's 8%. Blink WebRTC also leads on rating (5.0 vs 2.3) and update cadence (every 2 days vs every 2 months). OnSIP's advantage is ratings volume (71 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Blink WebRTC holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: OnSIP has 71 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 8% of OnSIP's written reviews are positive against 100% of Blink WebRTC's.

OnSIP ships an update every 2 months, Blink WebRTC every 2 days. The most recent releases landed on October 22, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | OnSIP | Blink WebRTC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (71 ratings)](https://appshunter.io/ios/app/onsip/id1253050184/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/blink-webrtc/id1489960733/reviews)** |
| Number of ratings | **71** | 2 |
| Positive reviews | 7.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 26 MB | 50 MB |
| Requires iOS | 17.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OnSIP](https://appshunter.io/developer/1253050183) | [AG Projects](https://appshunter.io/developer/404360418) |

## What reviewers say

### OnSIP

[App page](https://appshunter.io/ios/app/onsip/id1253050184)

This app extends your business phone system to your mobile device, enabling HD voice and video calls, contact monitoring, and voicemail management. Stay connected with clients and colleagues from anywhere, without needing extra hardware.

**Highlights:** HD voice and video calls, Voicemail management, Contact availability monitoring, Call history, Remote work connectivity

**Features:** Vision Pro support

**In-app purchases:** none


### Blink WebRTC

[App page](https://appshunter.io/ios/app/blink-webrtc/id1489960733)

This app provides secure audio and video calls, messaging, and file transfers using the SIP protocol. It supports multiple devices, call recording, and end-to-end encryption for all communications.

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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OnSIP free?

OnSIP is free to download, with no in-app purchases.

### Is Blink WebRTC free?

Blink WebRTC is free to download, with no in-app purchases.

### Which has better reviews, OnSIP or Blink WebRTC?

Blink WebRTC is rated higher. OnSIP averages 2.3 out of 5 from 71 ratings, while Blink WebRTC averages 5.0 from 2 ratings.

### Do OnSIP or Blink WebRTC have ads?

Neither OnSIP nor Blink WebRTC shows ads.

### Which is updated more often, OnSIP or Blink WebRTC?

OnSIP ships an update every 2 months, and Blink WebRTC every 2 days. Most recently, OnSIP was updated on October 22, 2026 and Blink WebRTC on October 17, 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.*