# GPG Sync vs ProvenRun ProvenHSM: side-by-side comparison (2026)

[GPG Sync](https://cybersectools.com/tools/gpg-sync) is a free [key management](https://cybersectools.com/categories/key-management) solution. [ProvenRun ProvenHSM](https://cybersectools.com/tools/provenrun-provenhsm) is a commercial [key management](https://cybersectools.com/categories/key-management) solution by [ProvenRun](https://cybersectools.com/companies/provenrun). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Key Management Solutions for Business](https://cybersectools.com/shortlists/best-key-management-solutions) picks Thales CipherTrust Manager, Fortanix Data Security Manager, Futurex CryptoHub and 3 more.

## Side-by-side comparison

| | GPG Sync | ProvenRun ProvenHSM |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Key Management | Key Management |
| Verified | No | No |
| Deployment type | On-Premises | Hybrid |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| GitHub stars | 350 | – |
| Last commit | Feb 2021 | – |
| Company | – | ProvenRun |
| Headquarters | – | – |

### Use cases and capabilities

| | GPG Sync | ProvenRun ProvenHSM |
|---|---|---|
| Encryption | Yes | Yes |
| Hardware Security | – | Yes |
| Cloud Native | – | Yes |
| REST API | – | Yes |
| Quantum Safe | – | Yes |

### Core features

**GPG Sync**

No features listed.

**ProvenRun ProvenHSM**

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

### Integrations

**GPG Sync**

No integrations listed.

**ProvenRun ProvenHSM**

4 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.

- [GPG Sync](https://cybersectools.com/tools/gpg-sync) fits if you need to run it on your own servers, you are a startup or a small business, you need a free product and you want an open-source product.
- [ProvenRun ProvenHSM](https://cybersectools.com/tools/provenrun-provenhsm) fits if you need both cloud and on-premises options.

## GPG Sync vs ProvenRun ProvenHSM FAQ

Common questions when comparing GPG Sync vs ProvenRun ProvenHSM for key management.

### What is the difference between GPG Sync and ProvenRun ProvenHSM?

**GPG Sync**: GPG Sync is a tool designed to keep OpenPGP public keys up-to-date within an organization by offloading the complexity of key management to a single trusted person.

**ProvenRun ProvenHSM**: Cloud & telecom HSM with formal OS verification, FIPS 140-3 L3, and PQC support, built by ProvenRun.

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

### Who makes GPG Sync and ProvenRun ProvenHSM?

**GPG Sync** is open-source with 350 GitHub stars. **ProvenRun ProvenHSM** is made by ProvenRun. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is GPG Sync a good alternative to ProvenRun ProvenHSM?

Often, yes. GPG Sync and ProvenRun ProvenHSM are both Key Management products, and both cover Encryption. Key differences: GPG Sync is Free while ProvenRun ProvenHSM is Commercial, GPG Sync is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [GPG Sync vs Qx™ Applications (QxApps™)](https://cybersectools.com/compare/gpg-sync-vs-qxtm-applications-qxappstm)
- [GPG Sync vs Futurex CryptoHub](https://cybersectools.com/compare/futurex-key-management-solutions-kms-vs-gpg-sync)
- [GPG Sync vs DuoKey](https://cybersectools.com/compare/duokey-vs-gpg-sync)
- [ProvenRun ProvenHSM vs Qx™ Applications (QxApps™)](https://cybersectools.com/compare/provenrun-provenhsm-vs-qxtm-applications-qxappstm)
- [ProvenRun ProvenHSM vs Futurex CryptoHub](https://cybersectools.com/compare/futurex-key-management-solutions-kms-vs-provenrun-provenhsm)
- [ProvenRun ProvenHSM vs DuoKey](https://cybersectools.com/compare/duokey-vs-provenrun-provenhsm)

## Alternatives to each

- [See all GPG Sync alternatives](https://cybersectools.com/alternatives/gpg-sync)
- [See all ProvenRun ProvenHSM alternatives](https://cybersectools.com/alternatives/provenrun-provenhsm)

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Source: https://cybersectools.com/compare/gpg-sync-vs-provenrun-provenhsm

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

More on GPG Sync and ProvenRun ProvenHSM: 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