Side by side
MailFlow vs QuietGrowth
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.
Free plan APISelf-hostedWeb
Choose MailFlow if you want incoming mail classified and reply drafts prepared for review, especially if self-hosting or local Ollama matters to you. Managed Free is capped at one mailbox and 100 emails a day. Look elsewhere if you need the software to send replies automatically.
Visit MailFlow Free trial Web
QuietGrowth combines inquiry triage, document-aware drafting and approval-based follow-up for event venues. Its integration breadth and one-week setup may help organized teams, while the paid plans and Starter connection limit deserve attention.
Visit QuietGrowthThe facts
| MailFlow | QuietGrowth | |
|---|---|---|
| Free plan | Yes | A free trial |
| Open source | Not published | Not published |
| Runs on | API, Self-hosted, Web | Web |
| Lowest paid plan | Paid: $12 a month | Starter: $150 a month |
| Plans published | 2 | 4 |
| Maker | Not published | Not published |
| Website | github.com | quietgrowth.io |
| On ai email assistants | #10 of 46 | #36 of 46 |
MailFlow: what it does well
- Classifies mail into IMAP folders using domains, threads, and keywords.
- Saves generated replies in the IMAP Drafts folder.
- Connects through generic IMAP or OAuth2 for Gmail and Microsoft 365.
- Supports multiple listed LLM providers and compatible endpoints.
- Can be self-hosted with Docker Compose.
What to know first
- Managed Free is limited to one mailbox.
- Managed Free allows 100 emails per day.
- MailFlow does not send email automatically.
- The security file warns against reusing an early development SECRET_KEY.
QuietGrowth: what it does well
- Drafts replies using venue documents and voice
- Schedules follow-ups on days 1, 3, 7 and 14
- Review-before-send is the default
- Connects inboxes, calendars, marketplaces and forms
- Human email support comes with every plan
What to know first
- No free plan
- Starter includes one inbox or form integration
- Automatic sending requires enabling selected categories
- Plans start at $150 a month
Alternatives to MailFlow Alternatives to QuietGrowth The whole list