# Mailprotector SecureStore vs Theta Lake Compliant Collaboration Archive: side-by-side comparison (2026)

[Mailprotector SecureStore](https://cybersectools.com/tools/mailprotector-securestore) is a commercial [communications archiving & compliance](https://cybersectools.com/categories/comms-archiving-compliance) solution by [Mailprotector](https://cybersectools.com/companies/mailprotector). [Theta Lake Compliant Collaboration Archive](https://cybersectools.com/tools/theta-lake-compliant-collaboration-archive) is a commercial [communications archiving & compliance](https://cybersectools.com/categories/comms-archiving-compliance) solution by [Theta Lake](https://cybersectools.com/companies/theta-lake). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Mailprotector SecureStore | Theta Lake Compliant Collaboration Archive |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Communications Archiving & Compliance | Communications Archiving & Compliance |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| Company | Mailprotector | Theta Lake |
| Headquarters | – | – |

### Use cases and capabilities

| | Mailprotector SecureStore | Theta Lake Compliant Collaboration Archive |
|---|---|---|
| PCI DSS | Yes | – |
| NIST | – | Yes |
| Security Policy | – | Yes |

### Core features

**Mailprotector SecureStore**

8 features listed. Sign in on the page to see them.

**Theta Lake Compliant Collaboration Archive**

10 features listed. Sign in on the page to see them.

### Integrations

**Mailprotector SecureStore**

No integrations listed.

**Theta Lake Compliant Collaboration Archive**

10 integrations listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Mailprotector SecureStore](https://cybersectools.com/tools/mailprotector-securestore) fits if you are a small business.

## Mailprotector SecureStore vs Theta Lake Compliant Collaboration Archive FAQ

Common questions when comparing Mailprotector SecureStore vs Theta Lake Compliant Collaboration Archive for communications archiving & compliance.

### What is the difference between Mailprotector SecureStore and Theta Lake Compliant Collaboration Archive?

**Mailprotector SecureStore**: Cloud-based email archiving solution with unlimited storage and retention. Built by Mailprotector.

**Theta Lake Compliant Collaboration Archive**: AI-based archiving and eDiscovery for unified communications platforms. Built by Theta Lake.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Mailprotector SecureStore and Theta Lake Compliant Collaboration Archive?

**Mailprotector SecureStore** is made by Mailprotector. **Theta Lake Compliant Collaboration Archive** is made by Theta Lake. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Mailprotector SecureStore a good alternative to Theta Lake Compliant Collaboration Archive?

Often, yes. Mailprotector SecureStore and Theta Lake Compliant Collaboration Archive are both Communications Archiving & Compliance products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Mailprotector SecureStore vs DeepView Platform](https://cybersectools.com/compare/deepview-platform-vs-mailprotector-securestore)
- [Mailprotector SecureStore vs VIPRE Email Archiving](https://cybersectools.com/compare/mailprotector-securestore-vs-vipre-email-archiving)
- [Mailprotector SecureStore vs MX Layer Email Compliance](https://cybersectools.com/compare/mailprotector-securestore-vs-mx-layer-email-compliance)
- [Theta Lake Compliant Collaboration Archive vs DeepView Platform](https://cybersectools.com/compare/deepview-platform-vs-theta-lake-compliant-collaboration-archive)
- [Theta Lake Compliant Collaboration Archive vs VIPRE Email Archiving](https://cybersectools.com/compare/theta-lake-compliant-collaboration-archive-vs-vipre-email-archiving)
- [Theta Lake Compliant Collaboration Archive vs MX Layer Email Compliance](https://cybersectools.com/compare/mx-layer-email-compliance-vs-theta-lake-compliant-collaboration-archive)

## Alternatives to each

- [See all Mailprotector SecureStore alternatives](https://cybersectools.com/alternatives/mailprotector-securestore)
- [See all Theta Lake Compliant Collaboration Archive alternatives](https://cybersectools.com/alternatives/theta-lake-compliant-collaboration-archive)

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Source: https://cybersectools.com/compare/mailprotector-securestore-vs-theta-lake-compliant-collaboration-archive

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/mailprotector-securestore.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Mailprotector SecureStore and Theta Lake Compliant Collaboration Archive: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md