Mailnitrix vs Instantly
Mailnitrix vs Instantly
Instantly is an all-in-one outbound suite with a lead database, AI agents and a CRM. Mailnitrix does one job, sending cold email safely from your own mailboxes, and charges a lot less for it.
The short version
Which one is right for you?
Choose Mailnitrix if…
- You already have your leads and your mailboxes
- You want the lowest price per email at your volume
- You'd like a free plan that doesn't expire after 14 days
- You upload big lists and don't want contact caps
- You'd rather pay for sending than for features you won't use
Choose Instantly if…
- You need a built-in B2B lead database to find prospects
- You want AI agents to write emails and handle replies
- You want a done-for-you managed service or dedicated sending infrastructure
- You want a CRM and website visitor tracking in the same tool
Price
What the same volume costs.
Cheapest plan that covers each monthly volume, on monthly billing. Instantly prices from its public pricing page, checked October 2026.
| Emails per month | Mailnitrix | Instantly | You save per year |
|---|---|---|---|
| 5,000 | $19/moLaunch | $47/moGrowth | $336 |
| 20,000 | $19/moLaunch | $97/moHypergrowth | $936 |
| 75,000 | $49/moTurbo | $97/moHypergrowth | $576 |
| 125,000 | $89/moTurbo + 50k extra | $97/moHypergrowth | $96 |
| 200,000 | $99/moNitro | $184/moHypergrowth + 1 add-on | $1,020 |
| 500,000 | $214/moEnterprise | $358/moHypergrowth + 3 add-ons | $1,728 |
| Plan limits | Mailnitrix | Instantly |
|---|---|---|
| Free option | Free forever: 1,000 emails/mo | 14-day trial (1,000 emails, 250 contacts) |
| Entry price (monthly) | $19/mo for 20,000 emails | $47/mo for 5,000 emails |
| Contact limits | Unlimited on paid plans | Growth: 1,000 · Hypergrowth: 25,000 · Light Speed: 100,000 |
| Email accounts | Unlimited on paid plans | Unlimited |
| Warmup | Included, never counts toward your emails | Included |
| When you need more | Keep sending at your plan's rate per 1,000 | Upgrade, or a Outreach add-on on larger plans |
Mailnitrix
What you get.
- Gmail, Workspace, Outlook and Microsoft 365 mailboxes
- Warmup with spam rescue and a campaign ramp for new mailboxes
- Rotation, random pacing and rolling 24-hour limits
- Cooldowns matched to each provider error, with automatic pause and resume
- Microsoft Graph sending when SMTP is switched off
- Follow-up sequences with reply detection, and a unified inbox
- Open tracking that filters machine opens
Instantly
What it adds.
- A B2B lead database and enrichment, sold as separate credits
- AI writing, reply and sales agents
- Unibox for replies (preview only on the Growth plan)
- A/B testing, basic on Growth and full on higher plans
- API on all plans; webhooks from Hypergrowth
- Dedicated sending infrastructure (SISR) from Light Speed
Based on Instantly's pricing page, checked October 2026.
Switching
Moving from Instantly takes an afternoon.
- 01
Export your leads
Download your lead lists from Instantly as CSV.
- 02
Import and map
Upload the CSV to Mailnitrix and match the columns. Custom fields become variables.
- 03
Connect mailboxes
Pause them in Instantly first, then connect them here so two tools never send from one mailbox.
- 04
Launch
Recreate your templates, pick mailboxes and start. The reputation your mailboxes built stays with them.
Your numbers
Try your own volume.
20,000
- Your Mailnitrix plan
- Launch
- Mailboxes needed
- 17–23 at 30–40/day
MailnitrixLaunch
$19/mo
InstantlyHypergrowth
$97/mo
SmartleadPro
$94/mo
You save each year, compared with the cheaper of the two
$900
Monthly list prices for the cheapest plan (plus Instantly's volume add-on where it is cheaper), checked October 2026. Instantly and Smartlead also cap contacts on each plan; Mailnitrix paid plans don't.
FAQ
Common questions.
Is Mailnitrix really cheaper than Instantly?
At every volume in the table above, yes. The gap is largest for small and mid-sized senders: 20,000 emails a month costs $19 on Mailnitrix, while Instantly's cheapest plan that covers 20,000 is Hypergrowth at $97.
Does Instantly have a free plan?
Instantly offers a 14-day trial with 1,000 emails and 250 contacts. Mailnitrix's Spark plan gives you 1,000 emails every month with no time limit.
Can I use both at the same time?
You can, but never connect the same mailbox to both while both are sending. Two tools that don't know about each other will push a mailbox past its limits.
What does Mailnitrix not do that Instantly does?
We don't sell lead data, AI agents or a CRM. If you want those inside your sending tool, Instantly is the stronger fit.
Start sending smarter, for free.
1,000 emails every month on the free plan. No credit card, no time limit.
Instantly is a trademark of its owner, used here only to identify its product. Mailnitrix is not affiliated with Instantly. Prices are list prices from Instantly's public pricing page as of October 2026 and may have changed. Tell us if something is out of date.