Side by side
HeyHelp vs Kerna
Both stand on ai email assistants. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid Web
HeyHelp focuses on organizing Gmail and preparing replies with several listed AI integrations. Choose between annual Pro without an API key and one-time Connect using your own key.
Visit HeyHelp Free plan MacWebWindows
Kerna brings triage, drafting, summaries, and translation into Gmail and Outlook, with user-triggered processing. Its Outlook mailbox requirements and token volumes are important to consider before choosing a plan.
Visit KernaThe facts
| HeyHelp | Kerna | |
|---|---|---|
| Free plan | No | Yes |
| Open source | Not published | Not published |
| Runs on | Web | Mac, Web, Windows |
| Lowest paid plan | Pro: $12 a month | Standard: €12 a month |
| Plans published | 2 | 5 |
| Maker | Not published | Not published |
| Website | heyhelp.ai | kerna.io |
| On ai email assistants | #42 of 46 | #4 of 46 |
HeyHelp: what it does well
- Sorts, tags, and archives email
- Drafts AI-assisted replies
- Supports follow-up actions
- Integrates Gemini, Anthropic, and OpenAI
- Offers a 7-day trial
What to know first
- No automatic sending
- No free plan
- Connect requires your API key
- Pro is billed annually
Kerna: what it does well
- Sorts open messages into built-in or custom categories.
- Drafts replies with intent and tone controls.
- Summarizes threads up to 50 messages.
- Translates messages and replies in 45 languages.
- Processes content only after a user action.
What to know first
- Outlook requires a Microsoft-hosted mailbox.
- POP and IMAP connections are unsupported.
- On-premises Exchange mailboxes are unsupported.
- Starter provides 30,000 tokens as trial volume.
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