Go4Database vs Wiza: Which B2B Data Tool Deserves Your Budget?
An SDR burns through their monthly Wiza credits by Thursday of week one. A marketing team buys a Go4Database list and watches a quarter of it bounce on the first send. Sound familiar?
The Go4Database vs Wiza decision comes down to this: one ships you a pre-packaged list, the other lets you pick contacts in real time from professional profiles. They solve fundamentally different problems, and picking the wrong one costs you more than money - it costs pipeline velocity and domain reputation.
Feature Comparison at a Glance
| Feature | Go4Database | Wiza | Edge |
|---|---|---|---|
| Database size | 400M contacts, 130M mobiles (claimed) | Dependent on profiles | Go4Database (on paper) |
| Accuracy | 95% claimed; ~25% bounce reported in G2 review | Up to 99% verified emails (advertised) | Wiza |
| Review credibility | 4.8/5 - 5 reviews | 4.5/5 - 1,143 reviews | Wiza |
| Workflow | Browse lists, add to cart | Chrome extension, export | Wiza (speed) |
| Pricing model | Per-list purchase | Credit-based per user | Go4Database (cost) |
| Compliance | GDPR, CAN-SPAM, CCPA | LinkedIn ToS risk | Go4Database |
| Integrations | CRM and marketing automation | HubSpot, Salesforce, Outreach, Pipedrive | Wiza |
What Is Go4Database?
Use this if you need cheap, bulk contact lists for mass email campaigns and don't mind running your own verification pass afterward. The "add to cart" model is dead simple - browse by job title, industry, or geography, grab a list, and go. They offer free samples before purchase, a replacement warranty for invalid emails, and 1,200 leads free. Founded in 2012, HQ in Noida.
Skip this if you care about data freshness. Go4Database claims 95% accuracy across 400M contacts, but a G2 reviewer reported roughly 25% bounced. That 4.8 rating comes from five reviews - statistically meaningless. Their own materials conflict on whether the included CRM license is one year or two, which doesn't inspire confidence.
Here's the thing: we've seen teams spend more on post-purchase verification than they saved on the list itself. If you're buying a $300 list and then running it through a $150 verification tool to strip out the junk, the math stops working fast. (If you're building outbound lists regularly, compare options in our guide to email list providers.)
What Is Wiza?
Use this if you're an SDR who lives in Sales Navigator and wants verified emails at the moment of export. Wiza's Chrome extension pulls contact data from professional profiles and verifies emails on the spot using SMTP validation, syntax checks, and domain verification. With 1,143 reviews on G2, there's real social proof behind it.
Skip this if you're budget-conscious or prospecting outside North America. Among reviewers, 157 flag Wiza as expensive, 127 cite limited credits, and 57 call out inaccurate data. The "unlimited" annual plan can still feel limited in practice - reports suggest a 10,000 monthly-credit cap, and we'd strongly recommend confirming terms before committing. There's also a real LinkedIn ToS risk with aggressive scraping, and Wiza has made sudden API access changes that burned annual subscribers.
Let's be honest: Wiza is a great tool trapped inside a bad pricing model. The per-credit math punishes exactly the high-volume users who'd benefit most from real-time verification. (If you're evaluating your stack, see our ranked list of SDR tools.)
Go4Database gives you bulk lists with questionable accuracy. Wiza gates real-time verification behind credit limits. Prospeo delivers both - 300M+ profiles with 98% email accuracy, refreshed every 7 days, at ~$0.01/email. No credit rationing, no surprise bounces.
Get the accuracy of Wiza and the scale of Go4Database without the tradeoffs.
Pricing Breakdown
| Plan | Wiza Monthly | Wiza Annual | Credits Included |
|---|---|---|---|
| Free | $0 | - | 20 emails, 5 phones |
| Starter | $49/user/mo | - | 100 emails, 100 phones |
| $99/user/mo | $83/user/mo ($990/yr) | Unlimited* | |
| Email + Phone | $199/user/mo | $166/user/mo ($1,990/yr) | Unlimited* |
| Team (3+) | - | Starting $449/mo | Custom |
*"Unlimited" plans still carry rules and export limits, including reports of a 10,000 monthly-credit cap. Overages run $0.15/email and $0.35/phone. A five-person team on Email + Phone annual hits roughly $10,000/year before overages. (If you're trying to model cost-per-lead, start with these lead generation metrics.)
Go4Database doesn't publish pricing publicly. Expect a few hundred dollars for targeted lists, with a "75% off first subscription" promo floating around. Budget-friendly on paper, but factor in third-party verification costs - that's the hidden line item most teams forget. (If bounces are a recurring issue, use these email bounce rate benchmarks to sanity-check your results.)
What If Neither Fits?
The difference is infrastructure. Prospeo's proprietary email-finding system doesn't rely on third-party providers, which is why teams like Snyk cut bounce rates from 35-40% to under 5% after switching. We've watched teams move off credit-gated tools and immediately stop rationing their prospecting activity - they just prospect. (For more ways to scale outbound without breaking deliverability, see these sales prospecting techniques.)
Snyk's 50 AEs cut bounce rates from 35-40% to under 5% after switching to Prospeo. No third-party email providers, no stale data - just a 5-step verification process and 7-day refresh cycle that makes post-purchase verification tools unnecessary.
Stop spending more on verification than you saved on the list.
Final Verdict
Pick Go4Database if you're buying bulk lists on a tight budget and you'll run your own verification before sending. Don't trust that five-review rating - it's not a reliable signal. (If you're comparing vendors broadly, start with our roundup of sales prospecting databases.)
Pick Wiza if you're an SDR prospecting in real time from professional profiles and you're willing to pay for the convenience. But read the fine print on "unlimited." It doesn't mean what you think it means. (If you're also evaluating verification vendors, see our list of Bouncer alternatives.)
For teams where accuracy and transparent pricing matter most, Prospeo combines the database scale Go4Database promises with the real-time verification Wiza offers - without the credit friction or opaque costs. When weighing Go4Database vs Wiza, it's the third option worth testing first.
FAQ
Is Go4Database's data accurate?
Go4Database claims 95% accuracy, but at least one G2 reviewer reports roughly 25% of emails bounced on first send. With only five reviews total, there isn't enough data to confirm the claim. Always run purchased lists through a verification tool before sending.
Does Wiza really offer unlimited emails?
On annual plans, Wiza advertises "unlimited" emails, but the plan still has rules and export limits - including reports of a 10,000 monthly-credit cap. That's a meaningful ceiling for high-volume teams. Confirm exact limits before committing to an annual contract.
Is there a more accurate alternative to both tools?
Prospeo offers 98% email accuracy across 300M+ profiles with a 7-day data refresh cycle and 5-step verification. Pricing starts free at 75 emails/month plus 100 Chrome extension credits/month, with no contracts - making it a strong pick for teams that outgrow either Go4Database or Wiza.