Affistash vs SignalHire: Different Tools for Different Jobs
Comparing Affistash vs SignalHire is like comparing a talent scout to a phone book. One scours the internet to find affiliate partners and creators you didn't know existed. The other looks up contact details for people you've already identified. The only overlap? Both can surface an email address. That thin intersection is why this comparison exists at all - and why the answer is simpler than you'd expect.
30-Second Verdict
Use Affistash if you're building or scaling an affiliate program and need to discover partners ranking for your keywords or linking to competitors.
Use SignalHire if you need a browser extension to pull emails and phone numbers from professional profiles and company websites quickly and cheaply.
What Each Tool Actually Does
Affistash
Affistash, now part of FMTC, is an affiliate partner discovery platform. Feed it keywords or competitor URLs and it finds sites ranking for those terms or linking to your competitors - potential affiliates you'd never find manually. It includes a partnerships CRM portal for managing lists, tracking partner status, and running outreach. While it does surface contact details for decision makers, it's primarily a recruitment engine for your affiliate program, not a general-purpose contact database.
G2 shows 4.0/5 from just 2 reviews, and Capterra gives it 5.0/5 from 3 reviews. Small samples, but consistently positive on ease of use.
SignalHire
SignalHire is a B2B contact finder with a database of 850M profiles and a browser extension that works across major web sources - including Facebook, GitHub, and company websites - for one-click extraction. It advertises 95%+ email accuracy and offers both email and phone lookups, plus bulk search up to 1,000 names, basic email sequences, and integrations with Salesforce and HubSpot.
SignalHire has more review data to work with. G2 rates it 3.7/5 across 56 reviews, and Trustpilot sits at 3.8/5 from 73 reviews. The complaints are worth reading - more on that below.
Pricing Side by Side
SignalHire splits pricing by data type, which catches people off guard. Want emails and phones? That's a separate, pricier tier.
| Tool | Starting Price | Credits | Cost/Contact | Free Tier | Best For |
|---|---|---|---|---|---|
| Affistash | $97/mo | 450 exports | ~$0.22 | 3-day trial | Affiliate discovery |
| SignalHire | $69/mo | 1,000 email credits | ~$0.069 | 5 credits (10/mo with extension) | Quick lookups |
| Prospeo | Free ($0) | Credit-based | ~$0.01 | 75 emails + 100 ext. credits/mo | Verified contact data |
$0.22 per export sounds expensive until you realize you're paying for partner discovery intelligence, not just an email. Affistash's Agency plan at $247/mo bumps you to 2,250 exports for teams running larger programs.
SignalHire's $69/mo for 1,000 email credits is reasonable - until you need phone numbers too. The Phones-only plan is $69/mo for 435 credits, and the Emails & Phones plan jumps to $139/mo for 900 credits. And that "unlimited" plan? A fair-usage policy caps actual usage at ~2,000 credits/month.
Here's a number you won't find in most comparisons: if SignalHire's accuracy is 95%, your effective cost per valid email is ~$0.0726, not $0.069, because 5% of your credits go to bad data. At 98% accuracy and ~$0.01/email, Prospeo's effective cost lands at ~$0.0102. That's roughly a 7x difference in cost per usable contact.
At 95% accuracy and $0.069/email, SignalHire's effective cost per valid contact is 7x higher than Prospeo's. With 98% email accuracy, a 7-day data refresh cycle, and ~$0.01/email, Prospeo eliminates the bounced emails and burned domains that plague teams using stale databases.
Stop paying 7x more for emails that bounce.
What Real Users Say
SignalHire complaints dominate the review sites. Billing issues are the loudest theme on Trustpilot - multiple users report charges after cancellation with refunds refused. Data accuracy is inconsistent: one recruiter on r/recruiting tested a number that came back as an Alaska cell for someone who'd never been to Alaska. G2 reviewers flag "incomplete data" and "fraudulent information" as recurring themes.
Affistash complaints are milder. Filtering sometimes surfaces merchants or competing brands instead of actual affiliates, and users want more analytics and automation.
Our take: Affistash's discovery engine is genuinely unique - nothing else in this comparison does what it does. SignalHire's browser extension is fast for quick lookups, but the data behind it is unreliable enough to cost you deals. We've seen teams burn sender reputation on bounced emails from stale databases, and that kind of damage takes months to repair (and often requires a full domain health audit).
Most People Searching This Need a Third Option
Let's be honest. If you landed on this Affistash vs SignalHire comparison because you need reliable contact data for outreach, neither tool is the right answer. Affistash doesn't try to be a contact database. SignalHire tries but falls short on accuracy and freshness. The real cost of bad contact data isn't the subscription - it's the bounced emails and burned domains that follow you for months.
Whether you pair it with Affistash for affiliate outreach or run standalone sales campaigns, your contact data needs to be accurate. Prospeo's 5-step verification and proprietary email infrastructure deliver 98% accuracy - no Alaska phone numbers for people who've never left New York.
75 free emails per month, no credit card, no contract.
Which One Should You Pick?
Recruiting affiliate partners? Affistash. Purpose-built for discovery. Nothing else here does that.
Need B2B contact data for sales or recruiting? Skip SignalHire. You'll get better accuracy, fresher data, and roughly 85% lower cost per contact from a dedicated platform like Prospeo (or compare stacks in our guide to B2B data enrichment tools).
Running affiliate outreach end-to-end? Use Affistash for partner discovery, then a verified data tool for contact details on the partners you've identified. That combo costs less than SignalHire's mid-tier and covers more ground - especially if you’re running a structured outreach sequence and want to avoid deliverability issues like cold emails going to spam.
FAQ
Are Affistash and SignalHire the same type of tool?
No. Affistash finds affiliate partners by analyzing keyword rankings and competitor backlinks. SignalHire finds contact details for people you already know. They solve different problems - Affistash is a discovery engine, SignalHire is a contact lookup tool.
Is SignalHire's unlimited plan really unlimited?
It isn't. A fair-usage policy caps usage at roughly 2,000 credits/month. Read the fine print on their pricing page. For heavy-volume outreach, credit-based tools with transparent per-contact pricing are more predictable.
What's a cheaper alternative to SignalHire for verified emails?
Prospeo delivers 98% email accuracy at ~$0.01/email with a 7-day data refresh cycle. The free tier includes 75 emails and 100 Chrome extension credits per month - roughly 7x more free lookups than SignalHire's extension offers.