Mailbutler Smart Assistant vs QuietGrowth
Mailbutler Smart Assistant
mailbutler.ioQuietGrowth
quietgrowth.ioSide by side
| Figure | Mailbutler Smart Assistant | QuietGrowth |
|---|---|---|
| Price from | $7/mo | $150/mo |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| Plans published | 10 | 4 |
| Spec score · AI Email Assistants | 9.2 (#3) | 7.4 (#32) |
| Integrations | Business plans sync tracking events with HubSpot and Salesforce and support Google Analytics 4 UTM data. | The site lists Gmail, Outlook, IMAP, Google Calendar, Outlook Calendar, Apple Calendar, Tripleseat, HoneyBook, Planning Pod, Perfect Venue, Dubsado, The Knot, Zola, Peerspace, TagVenue, WeddingWire, website forms, Typeform, SMS and Slack. |
| Security | Mailbutler says it is ISO/IEC 27001 certified and GDPR compliant, and that backend data is encrypted. | Its privacy policy says it uses encryption in transit and at rest, security audits and updates, access controls, employee data-protection training and incident-response procedures. |
| Support | Mailbutler says its customer support team answers queries 24/7 and provides a Support Center. | Every plan includes email support from a real human, and Pro includes priority adjustments and optimization. |
Plans
Mailbutler Smart Assistant
- StarterFree
- Professional$9 a month
- Smart$14 a month
- Business$32 a month
- Professional (yearly billing)$7 a month
- Professional (monthly billing)$9 a month
- Smart (yearly billing)$11 a month
- Smart (monthly billing)$14 a month
- Business (yearly billing)$24 a month
- Business (monthly billing)$32 a month
QuietGrowth
- Starter$150 a month
- Growth$250 a month
- Pro$450 a month
- EnterprisePriced on request
In their own words
Mailbutler Smart Assistant
Mailbutler Smart Assistant adds AI writing and email-management tools to Apple Mail, Microsoft Outlook, and Gmail. It drafts messages from keywords or prepares replies using details a user supplies, with controls for format, length, style, tone, and language. It can summarize selected emails, identify to-dos for Mailbutler Tasks, and suggest spelling and grammar improvements to drafts. Mailbutler says the assistant uses OpenAI GPT-4o. Smart Assistant is included in a 14-day trial, then requires a Smart or Business subscription. The separate free Starter plan includes a visible Mailbutler watermark on sent emails. Mailbutler says email subjects and bodies are processed by Microsoft Azure OpenAI Service in the EU, with personal data redacted before submission to the underlying model. It also says backend data is encrypted and that it is ISO/IEC 27001 certified and GDPR compliant. Apple Mail support is listed for macOS Tahoe, Sequoia, Sonoma, and Ventura; mobile apps require iOS 15 or later or Android 7 or later.
QuietGrowth
QuietGrowth has no write-up on Specifiction yet; its figures are above.