Exo
6.6#86 in email clientsFree planFree planmacOS
VisitExo vs Spike
What both publish
| Fact | Exo | Spike |
|---|---|---|
| App coverage | desktop | all |
| Calendar tools | Yes | Yes |
| Free plan | Yes | Yes |
| Product | Exo is an open-source, AI-native desktop email client that gathers context for emails and can draft replies in the user's style. | 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 |
| Security | Exo says OAuth tokens and local data use the operating system's standard security mechanisms, and its source code is publicly reviewable. | Spike says message data is encrypted with AES-256 using a per-message private key and that it has periodic external security audits. |
| Support | The privacy policy directs questions to an issue on GitHub. | The pricing page lists standard support for Starter, priority support for Team and Pro, and VIP support for Business and Ultimate. |
Exo plans
- FreeFree
Spike plans
- StarterFree
- Team$4 a month
- Business$8 a month
- FreeFree
- Pro$6 a month
- Ultimate$12 a month
Pick Exo 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.