# Redtail Speak vs ZeroTrustBioAuth

The clearest difference is ads: ZeroTrustBioAuth at none against Redtail Speak's shown. Redtail Speak's advantage is iOS requirement (13.4 vs 17.3). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Redtail Speak ships an update every 3 months, ZeroTrustBioAuth every 2 months. The most recent releases landed on June 4, 2026 and December 21, 2025 respectively.

## The numbers

| Metric | Redtail Speak | ZeroTrustBioAuth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.2 (18 ratings)](https://appshunter.io/ios/app/redtail-speak/id1565188741/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 7.1% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 21 MB | 2 MB |
| Requires iOS | **13.4** | 17.3 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Redtail Technology, Inc.](https://appshunter.io/developer/347316603) | [COLLABORATIONSTUDIOS.COM, LLC](https://appshunter.io/developer/1539011938) |

## What reviewers say

### Redtail Speak

[App page](https://appshunter.io/ios/app/redtail-speak/id1565188741)

This app provides a secure and compliant platform for financial advisors to text message clients and collaborate with staff. It offers real-time communication, automatic archiving, and integration with CRM systems for enhanced client relationships and team efficiency.

**Highlights:** Compliant client texting, Real-time staff collaboration, Searchable message archiving, Redtail CRM integration, Customizable client invites, Out of office auto-replies, Message templates

**Features:** macOS Compatibility

**In-app purchases:** none


### ZeroTrustBioAuth

[App page](https://appshunter.io/ios/app/zerotrustbioauth/id6587581224)

**In-app purchases:** none


## Frequently asked questions

### Is Redtail Speak free?

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

### Is ZeroTrustBioAuth free?

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

### Do Redtail Speak or ZeroTrustBioAuth have ads?

Redtail Speak shows ads; ZeroTrustBioAuth does not.

### Which is updated more often, Redtail Speak or ZeroTrustBioAuth?

Redtail Speak ships an update every 3 months, and ZeroTrustBioAuth every 2 months. Most recently, Redtail Speak was updated on June 4, 2026 and ZeroTrustBioAuth on December 21, 2025.

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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.*