Hylki
6.2#120 in email clientsFree planFree planLinux
VisitHylki vs Spike
What both publish
| Fact | Hylki | Spike |
|---|---|---|
| App coverage | desktop | all |
| Free plan | Yes | Yes |
| Integrations | It uses GNOME Online Accounts for OAuth sign-in and supports cloud attachments through Nextcloud, ownCloud, OpenCloud, OneDrive, Dropbox, and Seafile. | Spike supports Google Drive, Dropbox, and OneDrive for cloud attachments, and its calendar feature names Google Calendar, Outlook, and Apple Calendar. |
| Privacy | The maker says Hylki has no telemetry or tracking, blocks remote images by default, and stores passwords and tokens in the operating system secret service rather than in plaintext on disk. | Spike says it is ad-free and does not rent, sell, distribute, or monetize user data, while non-personal data may be used to improve its service. |
| Product | Hylki is a fast, GNOME-native email client for the Linux desktop with a three-pane layout, unified inbox, and OAuth account support. | Spike describes itself as an AI-powered inbox that brings email, calls, notes, tasks, and to-dos into one hub and turns email threads into chat-like conversations. |
| Scheduled sending | Yes | Yes |
| Support | The maker directs users to report bugs or suggest features through GitHub issues and asks them to include the app version, GNOME version, distribution, and reproduction steps. | The pricing page lists standard support for Starter, priority support for Team and Pro, and VIP support for Business and Ultimate. |
| Unified inbox | Yes | Yes |
Hylki plans
- HylkiFree
Spike plans
- StarterFree
- Team$4 a month
- Business$8 a month
- FreeFree
- Pro$6 a month
- Ultimate$12 a month
Pick Hylki if…
You want what its maker publishes above — check its page for the details.
Pick Spike if…
Spike may suit people or teams looking to bring email, scheduled messages, and calendar tools together across desktop and mobile platforms. Its plans cover different email, storage, team, and file-upload needs.