Choose Instantly if you need
- Integration with ChatGPT, RB2B or Findymail. We haven't found them on Mailshake's website.
At a glance
- Instantly's lowest paid plan is Starter at $94 per month, as of October 19, 2026.
- Mailshake's lowest paid plan is Starter at $29 per month, as of October 28, 2026.
- Both work with HubSpot, Slack and Zapier.
- Both have a public API.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose Mailshake if you need
- A lower starting price. Mailshake Starter is $29 and Instantly Starter is $94, both per month.
- Integration with Salesforce or Pipedrive. We haven't found them on Instantly's website.
Instantly
Nobody has reviewed Instantly yet. Its rating shows once it has 3 reviews.
Review Instantly
Mailshake
Nobody has reviewed Mailshake yet. Its rating shows once it has 3 reviews.
Review MailshakeThe facts
- What it does
- InstantlyTurn leads into clients with automated outreach, a B2B lead database, deliverability tools and an AI CRM
- MailshakeEmail automation that lands in inboxes, gets replies, and books meetings.
- Free plan
- InstantlyNot confirmed
- MailshakeNot confirmed
- Pricing
- InstantlyFlat monthly
- MailshakeNot confirmed
- Paid plans from
What they share
From the platforms and integrations each website lists.
Integrations
Both
- HubSpot
- Slack
- Zapier
Only Instantly
- ChatGPT
- RB2B
- Findymail
- BetterContact
Only Mailshake
- Salesforce
- Pipedrive
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Instantly and Mailshake yet.
Used either of them?
Your review makes this comparison better for the next person. Review Instantly or review Mailshake.