Instantly vs Mailshake: Which Is Better in 2026?
A side-by-side comparison of Instantly and Mailshake, two sales & crm tools — what each does, who it's best for, and how to choose between them.
Quick verdict
Instantly and Mailshake are both sales & crm tools, so it comes down to fit. Pick Instantly if you want A cold email outreach platform built for scale and deliverability — send campaigns that land in… Pick Mailshake if you want Cold email and sales engagement software for teams that book meetings
Instantly
A cold email outreach platform built for scale and deliverability — send campaigns that land in the inbox and book meetings.
- Category
- Sales & CRM
- Rating
- Not yet rated
- Best for
- cold email, outreach, deliverability
Mailshake
Cold email and sales engagement software for teams that book meetings
- Category
- Sales & CRM
- Rating
- Not yet rated
- Best for
- cold email, sales engagement, email outreach
| At a glance | Instantly | Mailshake |
|---|---|---|
| What it is | A cold email outreach platform built for scale and deliverability — send campaigns that land in the inbox and book meetings. | Cold email and sales engagement software for teams that book meetings |
| Category | Sales & CRM | Sales & CRM |
| Type | Software | Software |
| Best for | cold email, outreach, deliverability, lead generation | cold email, sales engagement, email outreach, lemlist alternative |
What is Instantly?
Instantly is a cold email outreach platform built to help businesses send large-scale email campaigns that actually land in the inbox and generate replies, with a strong focus on deliverability. Cold outreach is a major channel for B2B lead generation, but it's notoriously difficult to do at scale without emails landing in spam or damaging your sender reputation. Instantly addresses this head-on, providing the infrastructure and features to send high volumes of cold email while protecting deliverability, so outreach campaigns reach real inboxes and produce real conversations.
The platform lets users connect many sending accounts and rotate between them to send at scale safely, includes tools to warm up email accounts and maintain a healthy sender reputation, and provides campaign sequencing with follow-ups and personalization. Its emphasis on deliverability — keeping emails out of spam through warmup, rotation, and best practices — is its core differentiator, since even great outreach fails if it never reaches the inbox. Instantly also offers lead-finding and analytics features, aiming to be an all-in-one system for running cold email campaigns that convert prospects into booked meetings.
Instantly is used by startups, agencies, and sales teams that rely on cold email outreach to generate leads and want to do it at scale without sacrificing deliverability. The value is outreach that actually reaches people: by focusing on deliverability and providing the infrastructure to send safely at volume, it helps campaigns land in inboxes and produce replies rather than getting filtered into spam. For businesses that grow through cold outreach, the difference between emails that reach prospects and those that don't is enormous, and deliverability is the make-or-break factor. For teams running serious cold email campaigns, Instantly offers a purpose-built platform focused on the thing that matters most — getting the email seen.
What is Mailshake?
Mailshake is a cold email and sales engagement platform that helps sales teams and founders send personalized outreach at scale, with automated follow-ups, deliverability tools, an AI email writer and a built-in lead finder. A popular Lemlist alternative.
What problem it solves
Sales teams and founders struggle to run personalized cold outreach and follow-ups at scale while staying out of spam.
Alternatives & competitors
Lemlist
Key differences at a glance
- Purpose: Instantly is A cold email outreach platform built for scale and deliverability — send campaigns that land in the inbox and book meetings. Mailshake, by contrast, is Cold email and sales engagement software for teams that book meetings
- Category & type: both sit in Sales & CRM, and both are offered as software.
- Best suited for: Instantly leans toward cold email, outreach, deliverability, whereas Mailshake leans toward cold email, sales engagement, email outreach.
- Community rating: Instantly is not yet rated vs Mailshake is not yet rated. Ratings are community-submitted and change over time.
Instantly vs Mailshake: which should you choose?
Instantly and Mailshake both serve the sales & crm space, so the best choice depends on your priorities. Choose Instantly if you want A cold email outreach platform built for scale and deliverability — send campaigns that land in the inbox… Choose Mailshake if you want Cold email and sales engagement software for teams that book meetingsThe smartest move is to try each one's free tier or trial on a real task — that's the fastest way to feel the difference and pick the tool you'll actually stick with.
Frequently asked questions
Is Instantly better than Mailshake?
It depends on what you need. Instantly is A cold email outreach platform built for scale and deliverability — send campaigns that land in the inbox and book meetings. Mailshake is Cold email and sales engagement software for teams that book meetings Both are sales & crm tools, so the right pick comes down to your specific priorities, budget and workflow.
What's the main difference between Instantly and Mailshake?
Instantly focuses on A cold email outreach platform built for scale and deliverability — send campaigns that land in the inbox and book meetings. while Mailshake focuses on Cold email and sales engagement software for teams that book meetings Read the full breakdown above and check each tool's site for current features and pricing.
Can I use both Instantly and Mailshake?
In many cases, yes — teams often use complementary tools together. Whether it makes sense depends on overlap in functionality and your budget. Try the free tier or trial of each to see how they fit your stack before committing.
Which is cheaper, Instantly or Mailshake?
Pricing changes often, so check each tool's pricing page for the latest. Many tools offer a free tier or trial, which is the best way to evaluate value for your specific usage before you pay.