8 Best Cold Email Software for Startups in 2026: Tools Compared

Apollo.io is the best free start in cold email. The free plan stays free with limited monthly credits, and it covers the contact database, sequences and pipeline tools in one account. When the free credits run out, Basic costs $49 per seat a month billed yearly, or $65 month to month, with email sequencing and core integrations included.

The catch is the credit system and the per-seat price. Credits pay for emails, phone numbers, warmup and enrichment, and they reset each cycle without rolling over, so a heavy month can leave you short. The free plan also connects Gmail accounts only, and every new hire adds a seat to the bill, which is the one cost that grows with the team.

Snov.io is the best free alternative to Apollo.io. Its Trial plan renews every month with 50 credits, 100 recipients and 1 warm-up slot, and it includes unlimited sender accounts. Starter costs $39 a month, or $29.25 billed yearly, for 1,000 credits, 5,000 recipients and 3 warm-up slots, with a finder, verifier, sequences and a small CRM in one account.

The catch is the two meters you have to learn. Credits pay for finding and verifying addresses, while recipients cap how many people you can email, so 1,000 credits is not 1,000 leads. The free plan also leaves out integrations, bulk search and the API, which matters once your stack grows past Gmail and a spreadsheet.

Mailshake is the cheapest paid start on monthly billing. Starter costs $29 per user a month, or $25 billed yearly, and it includes templates, automated follow-ups, warmup, list cleaning and A/B testing. The interface is plain and quick to learn, which suits a founder sending the first campaign without a sales hire.

The catch is the per-user bill and the thin Starter tier. Each user connects one mail account and gets 1,500 sends a month, so a second founder doubles the cost and a growing list outgrows the cap fast. There is no free trial, so you pay before you send, and CRM integrations only start on Email Outreach at $49 per user a month.

GMass is the cheapest annual start in this list. Standard costs $29.95 a month, or $20 billed yearly, and it works inside Gmail as a Chrome extension, with unlimited emails, contacts and campaigns, mail-merge personalization and free email verification. Lists live in Google Sheets, so a founder can turn a sheet of prospects into a campaign without learning a new tool.

The catch is that Standard has no sequences. Automated follow-ups, A/B testing and inbox rotation only arrive on Professional at $59.95 a month, or $49 billed yearly. GMass is also Gmail-only, so a team on Outlook cannot use it, and there is no built-in lead database to source from.

Saleshandy is the flat-priced pick for a startup that plans to hire. Starter costs $34 a month billed yearly, or $41 month to month, and every plan includes unlimited email accounts, unlimited warmup and sender rotation. Pro at $76 a month billed yearly supports up to 10 users, and Scale at $149 a month billed yearly allows unlimited users, so the bill grows with volume, not headcount.

The catch is the single-user cap on Starter and the short trial. One founder can run the whole setup, but a second teammate needs Pro, and the free trial lasts 7 days, which is half the time most rivals give you. Starter also covers 2,000 active prospects and 6,000 emails a month, which a fast-growing startup can outgrow in a quarter.

Smartlead suits a startup that sends from many domains on a tight budget. Base costs $39 a month for 6,000 sends and 2,000 contacts, and every plan includes unlimited mailboxes, automatic warmup and sender rotation. The price moves with volume, never with mailbox count, so adding a domain for a new campaign costs nothing extra on the subscription.

The catch is that Smartlead brings no leads of its own. There is no database or finder in the base price, so a startup needs Apollo.io or Snov.io beside it to source prospects. White-label workspaces cost $29 a month per client, and mailboxes bought through SmartSenders run about $4.50 a month each, which pushes the real cost past $39 for teams that buy infrastructure inside the tool.

Instantly pairs flat pricing with a lead database, which is rare at this price. Growth costs $47 a month for 1,000 contacts and 5,000 emails, and every outreach plan includes unlimited email accounts and unlimited warmup. The same account can pull leads from a database of more than 450 million B2B contacts, so a startup can source and send without a second subscription.

The catch is that data costs extra. Lead credits start at $47 a month on top of the outreach plan, so a startup that needs both pays about $94 a month before annual discounts. Growth also has no team members, which pushes a growing team toward Hypergrowth at $107 a month, and there are no LinkedIn steps at any price.

QuickMail is the flat-priced pick for a startup that sends from many accounts. Every plan includes unlimited email senders, unlimited LinkedIn accounts and unlimited users for one flat price. Starter costs $49 a month for 1,000 uploaded contacts and 5,000 emails, and a free AutoWarmer through MailFlow warms each new sender without a separate subscription.

The catch is that QuickMail brings no leads and no API at the entry tier. There is no built-in database, so a startup needs a list before it starts, and API access only arrives on Growth at $99 a month. Starter also caps uploaded contacts at 1,000, which a startup with a large prospect list will outgrow fast.