Flowrite AI Review: AI Email Writer Now Part of MailMaestro (2026)
Complete guide to Flowrite — the pioneering AI email tool, what happened after the Maestro Labs acquisition, and the best alternatives available today
Flowrite was acquired by Maestro Labs and merged into MailMaestro. Flowrite is no longer available as a standalone product. This page covers original features, what happened, and the best alternatives.
What is Flowrite AI?
Flowrite AI was an AI-powered email writing assistant that turned short bullet-point instructions into professional, ready-to-send emails. It worked as a Chrome browser extension for Gmail, LinkedIn, and other platforms. Founded 2020 in Helsinki, Finland by Aaro Isosaari and Karolus Sariola. Served hundreds of thousands of users in 150+ countries before acquisition.
What Happened to Flowrite? The Maestro Labs Acquisition
In January 2025, Maestro Labs — the company behind MailMaestro — acquired Flowrite's AI email writing division. The acquisition merged Flowrite's technology and user base into MailMaestro, a more comprehensive AI email platform.
The original Flowrite team, led by founders Aaro Isosaari and Karolus Sariola, did not join Maestro Labs. They pivoted to build Flow AI, a platform for evaluating and improving LLM systems.
Flowrite.com now redirects to the Maestro Labs acquisition page. The Chrome extension is no longer available. Former users are encouraged to try MailMaestro, which includes everything Flowrite offered plus inbox management, thread summarization, and context-aware replies.
Searching for "Flowrite AI" today? The product is now MailMaestro — Flowrite 2.0 with all original features plus inbox management and thread summarization.
Flowrite AI: Original Features
Before the acquisition, the Flowrite AI tool offered these core capabilities as an AI email writing assistant:
AI Email Writer
Turned short instructions into complete professional emails. Adapted to tone, context, and writing style using GPT-3 AI technology.
Chrome Extension
Worked inside Gmail, LinkedIn, and web platforms. Click the Flowrite button — email appears instantly, no copy-pasting.
Template Gallery
Pre-built templates for sales outreach, cold emails, follow-ups, meeting requests, payment reminders, PR outreach.
Personalized Suggestions
Generated 3 AI reply options for incoming emails. Learned your personal writing style over time.
Multi-Language Support
Drafted emails in English, Spanish, French, German and more. Cross-language email generation.
Keyboard Shortcuts
Custom keyword shortcuts to insert frequently used phrases and details instantly while composing.
Full Feature Comparison: Flowrite vs MailMaestro
| Feature | Flowrite (Legacy) | MailMaestro (Successor) |
|---|---|---|
| AI Email Writer | ✓ | ✓ Enhanced |
| Rewrite & Polish | ✓ | ✓ Enhanced |
| Magic Templates | ✓ | ✓ |
| Keyword Shortcuts | ✓ | ✓ |
| Email Summarization | ✗ | ✓ Threads + Attachments |
| Inbox Triage | ✗ | ✓ Auto-Label |
| Context-Aware Replies | ✗ | ✓ |
| Calendar Integration | ✗ | ✓ |
| Gmail Support | ✓ Chrome only | ✓ Chrome extension |
| Outlook Support | ✗ | ✓ Native add-in |
How to Use Flowrite AI (How It Worked)
For those researching how the Flowrite AI tool worked — the step-by-step process that made it popular:
Install Chrome Extension
Add Flowrite from Chrome Web Store. Integrated directly into Gmail and web-based email clients.
Click the Flowrite Button
When composing or replying, click the Flowrite button in the compose window.
Type Brief Instructions
Enter bullet points: "thank them for meeting • interested in partnership • schedule call next week"
Select Template (Optional)
Choose sales follow-up, cold outreach, meeting request, or let AI generate freely.
Review, Edit, Send
Flowrite generated a complete email in seconds. Review, edit, send.
This workflow now exists in MailMaestro with added thread summarization, inbox triage, and context-aware replies.
Flowrite Pricing (Historical — No Longer Available)
These plans are discontinued. Check MailMaestro pricing for current options.
| Plan | Price | Messages | Features |
|---|---|---|---|
| Free Trial | $0 (7 days) | Limited | Full access during trial |
| Light | $5/mo | 15/month | AI email writing, templates, Chrome ext |
| Premium | $15/mo | 150/month | Everything in Light + more messages |
| Unlimited | $30/mo | Unlimited | Full access + priority support |
| Enterprise | Custom | Custom | DPA, priority support, 1:1 onboarding |
Flowrite AI Pros & Cons
✓ Strengths
- Extremely fast email generation from brief instructions
- Clean, beginner-friendly interface
- Great for repetitive and routine emails at scale
- Chrome extension worked seamlessly in Gmail
- Template library covered most business email types
- Multi-language support
- Adapted to personal writing style over time
- Saved 20+ minutes per day for heavy email users
✗ Weaknesses
- No longer available (acquired Jan 2025)
- Limited to email only — no broader features
- No inbox management or email summarization
- No Outlook support (Chrome-only)
- Free tier was very limited (15 messages)
- No analytics or performance tracking
- Dependent on internet — cloud processing only
- Basic AI compared to newer GPT-4 tools
Flowrite vs MailMaestro vs Grammarly vs Copilot
How Flowrite compared to its successor and top AI email writing competitors:
| Feature | Flowrite | MailMaestro | Grammarly | MS Copilot |
|---|---|---|---|---|
| Status | Discontinued | Active | Active | Active |
| Email Generation | ✓ From instructions | ✓ Enhanced | ✗ Edit only | ✓ In Outlook |
| Email Replies | ✓ 3 suggestions | ✓ Context-aware | ✗ No | ✓ Yes |
| Thread Summary | ✗ | ✓ 25 threads | ✗ | ✓ |
| Inbox Triage | ✗ | ✓ Auto-label | ✗ | ✗ |
| Gmail | ✓ | ✓ | ✓ | ✗ |
| Outlook | ✗ | ✓ | ✓ | ✓ Native |
| Free Plan | Trial only | ✓ Free tier | ✓ Free tier | ✓ Free tier |
| Price | $5–30/mo | Free+paid | Free–$30/mo | $20/mo (M365) |
Best Flowrite AI Alternatives (2026)
Since Flowrite is discontinued, here are the 10 best alternatives for AI email writing, ranked by overall value:
- MailMaestro (Official Flowrite Successor)Everything Flowrite offered plus inbox triage, thread summarization, context-aware replies. Gmail + Outlook. The natural upgrade for former Flowrite users.Free tier · Paid plans · maestrolabs.com →
- SuperhumanPremium AI email client with smart inbox, split inbox, read receipts, scheduled send, and AI writing. Fastest email experience available.From $30/mo · superhuman.com →
- GrammarlyAI writing assistant for grammar, tone, and clarity. Works across email, docs, and web. Doesn't generate emails from scratch like Flowrite, but polishes everything you write.Free · Premium $30/mo · grammarly.com →
- Microsoft CopilotAI assistant built into Outlook and Microsoft 365. Drafts emails, summarizes threads, suggests replies. Best for organizations already using Microsoft ecosystem.Free tier · $20/mo (M365) · copilot.microsoft.com →
- ChatGPT Writer (Free)Free Chrome extension for AI email writing in Gmail. Uses ChatGPT to generate and reply to emails. Best free Flowrite alternative.Free · Premium $7/mo · chatgptwriter.ai →
- LavenderAI email coach for sales teams. Real-time suggestions, personalization based on recipient data, performance analytics.Free (5 emails/mo) · From $29/mo · lavender.ai →
- HypertypeAI email assistant that uses your company's knowledge base (docs, past emails) to generate accurate replies. Great for support teams.Free trial · From $19/mo · hypertype.co →
- JasperAI marketing platform with email generation, campaign copy, and brand voice training. Best for marketing teams creating email campaigns.From $39/mo · jasper.ai →
- ShortwaveAI-powered email inbox with smart search, thread summaries, AI writing, and scheduling. Modern Gmail alternative.Free · From $7/mo · shortwave.com →
- SaneBoxAI email triage and inbox management. Auto-sorts emails into priority folders. Works with any email provider.From $3.49/mo · sanebox.com →
Frequently Asked Questions About Flowrite AI
What is Flowrite AI?
Is Flowrite free to use?
What happened to Flowrite?
What is Flowrite used for?
What are the best Flowrite alternatives?
Who is the founder of Flowrite?
Is there a free AI that writes emails?
Can ChatGPT write emails?
How does Flowrite actually work?
What is the best AI email writer?
Is Flowrite still available?
Does Flowrite work with Gmail?
Final Verdict: What Should Former Flowrite Users Do?
Flowrite was a genuinely useful AI email writing tool that simplified professional communication for hundreds of thousands of users. Its acquisition by Maestro Labs and merger into MailMaestro means the original product is gone — but its DNA lives on in a significantly more capable tool.
If you were a Flowrite user, MailMaestro is the clearest path forward. It includes everything Flowrite offered — AI email generation, templates, personalization — plus inbox triage, thread summarization, context-aware replies, and Outlook support that Flowrite never had. The free tier makes it easy to test.
For those who want alternatives beyond the Maestro Labs ecosystem, Superhuman offers the best premium email experience, Grammarly is best for improving existing writing, and ChatGPT Writer is the best free option for Gmail users who want something similar to what Flowrite provided.
Flowrite pioneered AI email writing. MailMaestro inherited and improved it. If you're searching for "Flowrite AI" in 2026, MailMaestro is your answer.
Looking for Flowrite? Try MailMaestro
The official Flowrite successor — everything Flowrite offered, plus inbox management and thread summaries.
