gpg4o pricing
5 plans read from bayoosoft.com
gpg4o€99.95 a month All functions of the OpenPGP encryption system · Microsoft Outlook 2016/2019/2021/365 Classic Read 20 Sep 2026 · bayoosoft.com
gpg4o FreeFree Free version without a time limit · Functionality is limited Read 20 Sep 2026 · download.giepa.de
gpg4o – Extension product maintenance 1 year€5,195 a year one yearUpdates and support for gpg4o Read 28 Sep 2026 · bayoosoft.com
gpg4o – Extension product maintenance 3 years€13,995 a year three yearsUpdates and support for gpg4o Read 28 Sep 2026 · bayoosoft.com
gpg4o€9,995, paid once one-time licenseMicrosoft Outlook 2016/2019/2021/365 Classic · OpenPGP functions Read 28 Sep 2026 · bayoosoft.com
In short
- gpg4o has a free plan (gpg4o Free).
- A free trial is offered.
- Paid plans published: 4, from €99.95 a month.
What the alternatives costAll alternatives →
| Tool | From | Free plan | Free trial |
|---|---|---|---|
| Lockbin | $10/mo | Yes | Yes |
| MailHippo | $4.95/mo | No | Yes |
| SecureMyEmail | $2.50/mo | Yes | Yes |
| c.Email | — | Yes | No |
| DataMotion Secure Email Exchange | — | No | Yes |
| Mailvelope | €3/mo | No | Yes |
| Send It Secure | $15/mo | Yes | Yes |
| FlowCrypt | — | Yes | No |