GetProspect vs Mailarrow: They Don't Actually Compete
GetProspect finds emails. Mailarrow sends them. If you came here expecting a head-to-head shootout, the real answer is simpler than you think - comparing these two is like comparing a fishing rod to a frying pan. Related, sure, but they solve completely different problems.
30-Second Verdict
GetProspect is a B2B email finder and contact database. Mailarrow is a cold email sending and warmup platform. They don't overlap in any meaningful way. GetProspect helps you build a prospect list; Mailarrow helps you email that list. Most outbound teams need both capabilities, not one or the other.
Here's the thing: most people searching this want one tool that does everything. That tool doesn't exist, and the ones claiming to do it all tend to do nothing well. Build a two-tool stack instead.
What Is GetProspect?
Use this if: you need a budget-friendly email finder with a Chrome extension for pulling contacts while browsing professional profiles. The free tier gives you 50 valid emails per month - genuinely useful for testing - and paid plans start at $49/mo for 1,000 valid emails. Trustpilot reviews praise the Chrome extension for making list-building and exporting easier.
Skip this if: you need high-confidence data at scale. Independent benchmarks show a real gap between "raw/advertised" enrichment and usable emails once you subtract hard bounces and wrong domains. In one February 2026 benchmark of 15 tools across 20,000 contacts, that gap ranged from 1.9% to 29.7%. We've seen teams burn sender reputation by feeding unverified data into sequences, and at volume, that gap becomes expensive fast. (If you're trying to fix this upstream, start with data enrichment and a tighter lead enrichment workflow.)
Other friction points include confusing quota systems and KYC verification delays that have frustrated users on Trustpilot. GetProspect carries a 4.0/5 on G2 - established, but not a standout.
Pricing: Free for 50 valid emails/mo. Starter $49/mo for 1K valid emails. Growth tiers up to $399/mo for 50K valid emails.
What Is Mailarrow?
Already have a list and need to send it? Mailarrow is an affordable cold email platform built around outreach and warmup, with unlimited warmup, unlimited mailboxes, and smart inbox rotation. The Basic plan runs $39/mo for 2,000 active prospects, 6,000 emails, and unlimited mailboxes. All three tiers - Basic ($39), Professional ($59), and Growth ($99) - include unlimited mailboxes and AI-powered warmup. There's a 7-day free trial. (If you're comparing warmup options, see our picks for unlimited email warmup.)
The trust problem is real, though. Mailarrow's review footprint is extremely thin: zero reviews on Slashdot, and a 5.0 rating on G2 that's based on almost no volume. G2 lists just 2 alternatives for Mailarrow versus 41 for GetProspect. It appears to be a small operation based in London.
The limited user feedback that does exist flags deliverability problems - emails landing in spam - and a laggy UI. When a cold email tool can't reliably land in the inbox, it doesn't matter how cheap it is. (If you're troubleshooting, use an email deliverability guide and monitor email bounce rate closely.)
There isn't much Reddit discussion comparing these two tools, which itself tells you something about how rarely they're evaluated together.
Pricing: Basic $39/mo, Professional $59/mo, Growth $99/mo. 7-day free trial.
GetProspect's enrichment gap burns sender reputation at scale. Prospeo's 5-step verification - catch-all handling, spam-trap removal, honeypot filtering - delivers 98% email accuracy across 300M+ profiles. At $0.01/email, that's 5x cheaper than GetProspect's Starter plan.
Stop feeding bad data into your sequences. Start with emails that actually land.
Side-by-Side Comparison
| Feature | GetProspect | Mailarrow |
|---|---|---|
| Category | Email finder / database | Cold email sender |
| Email finding | Yes | No |
| Cold email sending | Basic sequences | Yes |
| Email warmup | No | Yes (unlimited) |
| Database size | 18M contacts with business emails (plus access to a 900M-member professional network dataset) | N/A - not a database |
| Integrations | CRMs, export | Gmail, O365, Exchange |
| Starting price | Free / $49/mo | $39/mo |
| G2 rating | 4.0/5 | 5.0/5 |
| Review volume | Established (41 alts listed) | Near-zero |
| Verdict | Best for building lists | Best for sending campaigns |
The table makes it obvious: these tools sit in different categories. Comparing them directly is a dead end.
Which One Do You Actually Need?
You already have a list and need to send cold emails at scale. That's the outreach tool category - Mailarrow, Instantly, Smartlead, or Lemlist. You need warmup, inbox rotation, and deliverability infrastructure. (For a deeper playbook, see AI cold email outreach and cold email marketing.)
Most outbound teams need both. The question isn't GetProspect or Mailarrow - it's which email finder and which sending tool to pair together.
The Better Stack: Data + Sending
The smarter move is building a two-tool stack where each layer is best-in-class. In our testing, this approach consistently outperforms all-in-one platforms that try to do everything and nail nothing.
For the data layer, Prospeo covers 300M+ professional profiles with 98% email accuracy and a 7-day data refresh cycle. That freshness matters - stale emails bounce, and bounces wreck your sender reputation. At roughly $0.01 per email, it's about 5x cheaper per contact than GetProspect's Starter plan, with a free tier of 75 verified emails per month. The 5-step verification process includes catch-all handling, spam-trap removal, and honeypot filtering, so you're not feeding garbage data into your sequences. No contracts, no sales calls, self-serve from day one. (If you're still shopping around, compare more email search tools and email list providers.)
For the sending layer, pair it with Instantly (typically $30-100/mo) or Smartlead (typically $40-100/mo). Both offer proven warmup, inbox rotation, and deliverability infrastructure - and both integrate natively with Prospeo. Total budget for a proper data + sending stack: $80-150/month for accurate contacts and reliable delivery. (If you're scaling volume, follow safe email velocity limits.)
Let's be honest - that's less than most teams spend on a single all-in-one tool that underperforms on both fronts.
Your two-tool stack is only as strong as the data layer. Prospeo refreshes 300M+ profiles every 7 days - not every 6 weeks. Pair it with Instantly or Smartlead via native integrations and you have a complete outbound engine for under $150/mo.
Build the stack that books 26% more meetings than ZoomInfo users.
FAQ
Can GetProspect send cold emails?
GetProspect has a basic sequence feature, but it's primarily an email finder and database tool. For serious cold outreach with warmup, inbox rotation, and deliverability optimization, you need a dedicated sending platform like Instantly or Smartlead - not a data tool with bolted-on sequences.
Does Mailarrow include an email finder?
No. Mailarrow sends emails and warms up accounts, but you need to bring your own prospect list. It has no contact database or email lookup feature. Pair it with a dedicated data tool to build your list before importing.
What's the best approach for finding AND sending cold emails?
No single tool does both well. Use a dedicated email finder for the data layer - 98% accuracy across 300M+ profiles prevents the bounces that kill deliverability - then pair it with a sending tool like Instantly or Smartlead. This two-tool stack typically costs $80-150/mo and outperforms all-in-one platforms that try to do everything at once.