The Bat!
The Bat!: A security-focused Windows email client with useful calendar and filtering tools. Ranked #115 of 142 in Email Clients by our editors (3.0/10); pricing: 30-day trial; best for windows users prioritizing secure local email.
At a glance
- Editor score3.0 / 10
- Pricing30-day trial
- Best forWindows users prioritizing secure local email
- Free planNo
- App coverageDesktop
- Facts checked23 Sep 2026
Where it wins
- OpenPGP, S/MIME, and GnuPG support for encrypted email
- Encrypted backups plus filtering, templates, and tracking controls
- Calendar synchronization with Google Calendar and Outlook Calendar
Where it doesn't
- Windows desktop coverage limits platform flexibility
- No free plan and a listed starting price of 49.99
- Many integrations and ecosystem connections are not included
Our verdict on The Bat!
The Bat! is a paid desktop email client for Windows users who want local email management with a strong focus on correspondence protection. Its core toolkit combines message sorting and filtering, quick templates, address-book profiles and groups, document viewing, RSS feeds, automatic backups, and controls for external images and tracking pixels. A built-in calendar handles meetings, tasks, and reminders, with synchronization for Google Calendar and Outlook Calendar. It is suited to individuals and organizations that prefer a dedicated Windows client rather than a broader multi-platform mail application.
Security is the product’s clearest point of distinction. Email encryption supports OpenPGP, S/MIME, and GnuPG, while encrypted backups add protection for stored data. The Home plan includes OpenPGP and S/MIME support, automatic backup, filtering, templates, and multiple interface themes, but is limited to non-commercial use. Professional includes the Home features for commercial and non-commercial use, along with The Bat! Voyager, on-the-fly message-base encryption, and biometric and hardware authentication. Those additions make Professional the more relevant choice where portable access or stronger authentication matters.
The trade-off is a focused platform and pricing model. The Bat! is available as desktop software for Windows, with Google Calendar and Outlook Calendar as its listed integrations. There is no free plan, and the listed starting price is 49.99; the published licensing information describes perpetual new-license pricing rather than subscription billing. Choose The Bat! for Windows-based secure email, local control, and detailed message management. Choose another client if broad platform coverage, a larger integration ecosystem, or a free entry tier is more important than encryption and desktop-focused features.
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The Bat! pricing
All 2 The Bat! plans and prices →
The Bat! fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| App coverage | Desktop |
| Account limit | Not verified |
| Unified inbox | Not verified |
| Offline access | Not verified |
| Scheduled sending | Not verified |
| Calendar tools | Yes |
| Free trial | 30 days |
| Deployment | Desktop |
| Platforms | Windows |
| Support | Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 2 integrations: Google Calendar, Outlook Calendar |
| Pricing | 30-day trial (source) |
| Website | thebat.net |
| Facts checked | 23 Sep 2026 |
The Bat! integrations
The Bat! lists 2 integrations on its own site.
- Google Calendar
- Outlook Calendar
Alternatives to The Bat!
- Mozilla ThunderbirdA capable free client for multi-account email, offline access, and desktop productivity tools.9.4
- Zoho MailA flexible hosted email service with free access, migration tools, and Zoho collaboration options.9.2
- Apple MailA capable Apple-focused email client with unified inboxes, scheduling, privacy controls, and AI assistance.9.1
See all The Bat! alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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