4.6
Taco ratings
INBOX is praised for its user-friendly interface, drag-and-drop templates, and real-time analytics. Customers also appreciate its affordability, multiple brand management, and ease of setup. Some users have noted minor drawbacks like limited automation and form design options. With an overall rating of 4.6 and a 60-day money-back guarantee, INBOX is a solid buy for those in need of an efficient email marketing solution.
AI-powered summary of customer reviews
Verified purchaser
Great customer support!
I'm a small business owner approaching the limits of the free plan with my current provider after several years in business. I've used MailChimp and MailerLite, and done free trials with FloDesk, SendFox and ConvertKit. Inbox checks all the boxes I need and I'm very glad I tried them out because I'll likely never need another provider. Not only was I able to set up a ton of contact lists segmented exactly how I wanted them, but working with customer service via email was easy and effective to set up my sub-domain email address to send out from and get direction when needed. The test email I sent to myself looks great. There are some things that are a little different, mainly not being able to upload your logo/address/social media to pre-populate into emails, but I've set up a template that I plan to use for most of my emails so that won't really be an issue. The rest of the email editing is easy via drag and drop. 5 Tacos from me!
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Verified purchaser
Overall terrifying experience.
I just purchased the InBox. It seems like quite good. It has a very good reputation and a lot of reviews on appsumo. Now I just redeemed my Tier 1 and I also logged in. Now when I'm trying to log out, it's pushing me to download something. I don't know why they are doing this. It's kind of some bug, or they are trying to install a virus or something like this on our laptop?. I'm using MacBook Safari. Overall, the experience is terrifying. I'm not sure what they are trying to do.
Emin_Inbox
Jun 10, 2026Hi, and thank you for picking up INBOX — we're genuinely sorry the experience felt unsettling, because that's the last thing we want for a new user.
We want to reassure you right away: INBOX never triggers any download to your device. There's nothing to install — it runs entirely in the browser, and we have 25,000+ active users with no reports of a download being pushed on logout. We've also...
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Verified purchaser
This is a great piece of software and I highly recommend it
I bought Inbox on AppSumo in 2021 which is quite a while ago, and honestly, it’s one of the few tools that’s genuinely kept improving over time rather than disappearing into the usual startup graveyard.
The team have clearly continued developing it properly, and it now feels like a solid, reliable piece of software rather than an unfinished “coming soon” product.
What I like most is that it’s become more polished, more capable, and more useful the longer I’ve had it.
I’m actually surprised it’s still available on AppSumo. If the lifetime deal is still there and you think you’d use it, I’d seriously grab it while you can.
Definitely one of the better AppSumo purchases I’ve made.
Emin_Inbox
May 13, 2026This honestly means a lot 🙏
One of our biggest goals since 2021 has been to keep improving INBOX instead of becoming another abandoned startup product, so reading this made the whole team really happy.
Thank you for noticing the progress and for supporting us for so long. We’re still building every day ❤️
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Verified purchaser
The Ultimate Tool for SaaS Growth
Building a Healthcare ERP in a growing market like Indonesia, Klinikita Indonesia, means we need to move fast. UseInbox gives us the infrastructure to scale our outreach without the skyrocketing costs of other platforms. The A/B testing feature allowed us to refine our messaging for medical practitioners, significantly increasing our conversion from free trial to paid subscribers. This is a high-value investment for any digital product owner.
Emin_Inbox
May 13, 2026Love hearing this 🙏
Building in healthcare is not easy, so it’s amazing to hear INBOX has been helping Klinikita scale outreach more efficiently and improve conversions with A/B testing.
Thank you for trusting us to be part of your growth journey — comments like this motivate our whole team ❤️
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Verified purchaser
One of my best purchases!
I bought Inbox a few years back and have not regreted it. It is one of the best email marketing tools that I have used and I highly recommend it. The best part of buying here on Appsumo is that I no longer have to pay a monthly fee for my email marketing.
Emin_Inbox
May 13, 2026This made me smile 🙏
Really happy to hear INBOX has been one of your best AppSumo purchases and continues to help with your email marketing without the monthly costs.
Thank you for the support and recommendation — we truly appreciate it ❤️
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