Best Nova Inbox Alternatives & Competitors in 2025

Send personalized emails with attachments

Hyper-personalized emails for E-commerce

Enterprise Email Warmup. Sender Domain Reputation Repair Tool to get out of spam and see open rates more than double in 4 to 14 days. We engage with your emails to teach mailbox providers not to send your email to the spam or the promotions folder.

Try for free paid Free Trial $149.0 / Monthly (Send to 100 of our unique seed emails per day)

Share the most relevant content in every email

First usable API to write Gmail Apps for 1B active users

Automate personalized emails for ecommerce (YC15)

Connect your CRM and other sources (Mailchimp, Unbounce, GoToWebinar, Uservoice, and more) and we tell you which leads are hot

Free metrics 📈 for your business and team email ✉️

Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.

freemium $11.99 / Monthly (Per user - Premium)

Send cold emails for free! Free and open source project

Scale your business email & marketing messages with Amazon Simple Email Service (SES), a cost-effective and reliable cloud email service. Sign up today.

Open Source

Send recurring emails

paid Free Trial $9.0 / Monthly

Email marketing for less, via Amazon SES

Email marketing software built for designers and their clients to run successful email campaigns.