# Sendblue vs Linq zero

The clearest difference is rating: Linq zero at 5.0 against Sendblue's 3.9. Sendblue's advantage is ratings volume (18 vs 2) and iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Linq zero holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Sendblue has 18 ratings behind it against 2, so its average is the more settled of the two.

Sendblue ships an update every 8 days, Linq zero fortnightly. The most recent releases landed on October 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Sendblue | Linq zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (18 ratings)](https://appshunter.io/ios/app/sendblue/id6746288488/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/linq-zero/id6749238366/reviews)** |
| Number of ratings | **18** | 2 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Fortnightly |
| Monetization | Free | Free |
| Size | 92 MB | 38 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sendblue](https://appshunter.io/developer/1816063505) | [Linq, LLC](https://appshunter.io/developer/1492946254) |

## What reviewers say

### Sendblue

[App page](https://appshunter.io/ios/app/sendblue/id6746288488)

Connect your CRM to your phone for seamless peer-to-peer messaging. Manage customer communications on the go with this business tool.

**Highlights:** CRM P2P Messaging Access, Mobile Communication, Business Tool, Customer Communications

**Features:** Vision Pro support

**In-app purchases:** none


### Linq zero

[App page](https://appshunter.io/ios/app/linq-zero/id6749238366)

Manage professional contacts, communicate with clients via messaging and calls, and monitor team conversations. This native iOS app offers a clean interface with features like real-time messaging, VoIP calling, and team inbox functionality.

**Highlights:** Contact management, Real-time messaging, VoIP calling, Team inbox, Native iOS interface, Dark mode support

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

**In-app purchases:** none


## Frequently asked questions

### Is Sendblue free?

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

### Is Linq zero free?

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

### Which has better reviews, Sendblue or Linq zero?

Linq zero is rated higher. Sendblue averages 3.9 out of 5 from 18 ratings, while Linq zero averages 5.0 from 2 ratings.

### Do Sendblue or Linq zero have ads?

Neither Sendblue nor Linq zero shows ads.

### Which is updated more often, Sendblue or Linq zero?

Sendblue ships an update every 8 days, and Linq zero fortnightly. Most recently, Sendblue was updated on October 1, 2026 and Linq zero on September 21, 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.*