Last Updated: May 2025
Email remains one of the most powerful tools for business and personal communication—and with over 392.5 billion emails projected to be sent daily in 2026 (Statista), efficiency is key. Whether you’re a busy professional, entrepreneur, or marketer, finding the right tool to craft clear, compelling messages can save you hours every week.
That’s where AI comes in. Today’s advanced tools, including both premium options and free AI email writer apps, use natural language processing to generate well-structured, personalized emails in seconds. From follow-ups and outreach to sales pitches and daily communication, these apps take the guesswork out of writing.
In this article, we’ve rounded up the 10 best AI email writer apps in 2025, including the top free AI email writer app options and premium tools worth your investment.
What Is an AI Email Writer App?
An AI email writer app is an artificial intelligence-based software that can be used to write emails faster and better. These tools harness natural language processing (NLP) and machine learning algorithms to comprehend context, produce relevant assets, and customize messaging according to tone, intent, and audience.
Be it a professional response, a sales pitch, or just a follow-up text message, AI email writer apps can draft you high-quality emails in seconds that save time and busy schedules while improving communication in personal and professional environments.
List of Top AI Email Writer Apps (Free and Paid)
According to McKinsey, Professionals spend as much as 28% of their workweek reading and responding to emails; that’s over 11 hours a week. AI email writer applications help save a lot of time by writing emails without compromising on quality.
We provide the top 10 AI email writer apps available free & paid) for varying user requirements.
1. Saufter
Ratings: 5/5⭐
Pricing: Free trials; Paid plans start at $8/month.
If you are looking for a perfect email marketing platform for your SaaS or eCommerce business, then Saufter will be an ideal option for you. The software monitors competitor campaigns, studies user activities and recommends tailored email approaches to increase interaction.
For SaaS, it tracks trial use and nudges people to adopt key features. In eCommerce, it launches campaigns according to cart activity, browsing, and order status.
Saufter also suggests industry or geography-specific newsletters. It ensures higher conversions with its intelligent cohort segmentation and behavioral analysis, and higher deliverability.
2. Jasper
Ratings: 4.7/5⭐
Pricing: Free trials; Paid plans start at $39/month.
Jasper AI is a formidable text generation platform due to its ability to produce high-quality emails, blogs, ad copy, etc.. Some of its features include a variety of AI templates, long-form content workflows, and integration with Surfer SEO for optimized writing.
Jasper’s email generator helps people write personalized, professional business emails in seconds. Its templates are customizable, so marketing teams can ensure a consistent tone of voice across communications.
3. SmartWriter
Ratings: 4.0/5⭐
Pricing: Free trials; Paid plans start at $49/month.
It is a popular AI email writer built for marketers, salespeople, and entrepreneurs. It excels with sophisticated personalization and uses recipient information such as job bios and social media activity to generate very relevant messages.
SmartWriter is an AI email writing solution that uses machine learning to simplify the email writing experience for various use cases, be it applying for a job posting, launching a marketing campaign or cold outreach, B2B sales, or even personal use.
4. SaneBox
Ratings: 4.9/5⭐
Pricing: Free trials; Paid plans start at $2.04/month.
SaneBox is an email inbox management tool that tracks email habits, prioritizes important messages and filters out the noise. It instantly categorizes your emails into smart folders (SaneLater, SaneNews, etc.), making your flow through work much more efficient.
SaneBox also lets you archive old emails by date, helping you clear some space without ditching anything valuable. It can also suspend non-urgent notifications, maintaining your focus while doing high-impact tasks and streamlining the inbox experience.
5. MailMaestro
Ratings: 4.8/5⭐
Pricing: Free up to 3 requests per week; Paid plans start at $12/month.
Maestro Labs is the developer of the AI email assistant MailMaestro. The company also has acquired the email writing arm of Flow AI, called Flowrite, as part of its expansion into the automation region.
MailMaestro is a well-rated tool that writes high-quality emails following your tone, language and length using OpenAI’s ChatGPT. MailMaestro gained the astuteness to automate email user experience and segmentation through the incorporation of Flowrite’s AI personalization technology.
Along with its powerful email writing capabilities, MailMaestro also works as one of the best AI email reply generators, which enables you to send responses to emails in your inbox seamlessly. This ensures that no received email goes unreplied to, with tons of time saved.
6. ClickUp
Ratings: 4.7/5⭐
Pricing: Free up to 100MB storage; Paid plans start at $7/month.
ClickUp Brain’s AI streamlines the email-writing process by creating write-ups that are ready to go. It creates professional yet friendly emails, saving businesses time and improving the quality of correspondence.
It also offers an AI email reply generator. For example, when responding to a client’s question in a time crunch, ClickUp Brain contextualizes the conversation and produces personalized content specific to the voice and intent.
It’s incredibly useful during busy times, when it’s not practical or efficient to start writing emails from scratch.
7. Lavender
Ratings: 4.8/5⭐
Pricing: Free up to 5 Emails per month; Paid plans start at $27/month.
Lavender is an AI email writer that is transforming email writing productivity. Using the tool, users can create high-quality and result-oriented messages effortlessly.
It features personalization assistant that pulls the prospect data directly into your inbox and helps you tailor outreach. Real-time coaching from Lavender scores emails based on readability, personalization, and impact.
It even catches spammy phrases and recommends short, powerful alternatives so that every email you send is polished, effective, and engagement-crafted.
8. Google Gemini
Ratings: 4.4/5⭐
Pricing: Free forever
You can use Google Gemini in Gmail and write professional emails in seconds. The app has an easy-to-use interface and runs seamlessly on the web and mobile. Features, like “Help Me Write” and “Polish”, are particularly helpful when responding to client inquiries and drafting personalized marketing emails.
Whether you are polishing a campaign or personalizing a thank-you note, this free AI email writer gives you the confidence to write.
9. Rytr
Ratings: 4.7/5⭐
Pricing: Free up to 10k characters per month; Paid plans start at $7.5/month.
Rytr is a well-known AI writing assistant that makes email writing easy for you across use cases, no matter if it is a marketing campaign or a normal issue. It assists users with a formal email, persuasive sales pitches, and even job application emails within minutes.
Rytr’s AI creates relevant, entertaining content and enables you to tweak tone and style to fit any audience. Particularly useful for crafting email messages tailored to readers all over the world, as it has built-in multilingual support and plenty of room for customization.
10. ChatGPT
Ratings: 4.7/5⭐
Pricing: Free Forever
Whether you write emails for work, send out messages to clients or manage personal correspondence, ChatGPT adapts to your tone and content requirements. It helps pull together a polished, professional message, while also making suggestions to improve tone, structure and clarity.
You can generate follow-ups, newsletters, or convincing outreach emails in a jiffy. It is so easy to take your content and modify it to meet the exact tone or intention you wish to convey. So that you can ensure that your emails are always crisp and optimized for the result you want.
How to Use an AI Email Writer
An AI email writer is simple to use and can vastly improve your productivity. Indeed, McKinsey estimates that the time spent on writing tasks is reduced by up to 40% with AI tools, making them ideal for professionals who juggle a lot of communication.
Here is how to use them effectively:
Choose the Right Tool
First, choose a good paid or free AI email writer app that meets your requirements for writing sales emails, customer support replies or daily updates.
Input Key Details
Tools typically take you through steps where you fill in all the important details, like the subject, recipient, the purpose of the email, and some pointers you want to include.
Select Tone and Style
Adjust the tone (formal, friendly, persuasive, etc.) and language. Many tools also let you modify the length or complexity.
Generate and Review
Hit “generate” and let the AI do its thing to write your email. Edit the draft if it needs to fit your message.
Send or Export
Once you’re happy with the result, you can copy the email, export it, or send it directly if the app integrates with your email provider.
All it takes is a few clicks to make email easier, quicker, and more worthwhile to enable more time for other, higher-value activities.
Best Practices for Using an AI Email Writer
A well-leveraged, AI email writer app can have a major positive influence on productivity and email quality. Here are some of the best practices to get the best results out of it:
Always Review and Personalize
AI is capable of producing wonderful drafts. However, as with the majority of things in the world, the AI content has to be reviewed and personalized to your own brand voice, context and relationship with the individual that is receiving the message.
Set the Right Tone and Intent
Many AI tools let you choose the tone (formal, friendly, persuasive, etc.). Pick the one that best matches your message’s goal and audience.
Use Specific Prompts
The output is more accurate the more detailed your input or prompt. Include the email’s purpose, main points, and any call-to-action you’d like to see.
Check for Context and Accuracy
AI makes assumptions, sometimes. Verify dates, names or technical information that needs to be accurate before sending.
Combine AI with Human Insight
Use the AI for structure, grammar and speed, but trust your instincts for emotional intelligence, nuance and final editing.
So, if you follow these practices, you won’t only use your AI email writer optimally, but also will be sending messages that are impactful and authentic.
Conclusion
In 2025, AI email writer apps are revolutionizing how businesses connect with their audience. One of the biggest benefits of personalization in email marketing is improved open rates—a remarkable 82%. Choosing the right AI tool can make all the difference.
Whether you’re a startup or an enterprise, platforms like Saufter stand out for their deep behavioral insights and automation tailored to SaaS and eCommerce. The future of email marketing is smart, strategic, and powered by AI—are you ready?
