Altss vs Datanyze: Different Tools, Different Markets
Altss and Datanyze get lumped together in comparison tools, but the Altss vs Datanyze matchup is misleading - they have almost nothing in common. One helps fund managers find family office allocators. The other reveals B2B contact info from a Chrome extension for $29/month. We get why this comparison surfaces, but it's like comparing Bloomberg Terminal to Lusha.
Let's save you some time and break down what each tool actually does, who it's for, and what you probably need instead.
30-Second Verdict
- Use Altss if you're raising a fund and need LP intelligence - family offices, endowments, pensions. It costs $15,500/year and serves a completely different market than sales prospecting tools.
- Use Datanyze if you need a cheap way to reveal a handful of B2B contacts per month. Plans start at $29/month ($21 billed annually) for 80 credits. A free Nyze Lite trial gives you 10 credits/month for 90 days.
What Altss Actually Is
Altss is an LP intelligence platform for fund managers raising capital from family offices and institutional investors. The database covers 9,000+ verified family offices and 1.5M+ allocator profiles - endowments, pensions, sovereign wealth funds, and HNWIs - with 80+ LP filtering criteria.
Family offices now account for roughly 31% of startup capital, with 48% allocated to alternatives, which explains why a niche tool like this commands $15,500/year. It's rated 5.0/5 on SourceForge, though from just 2 reviews - so take that with a grain of salt.
If you're not in alternative investments fundraising, Altss isn't for you. Full stop.
Neither Altss nor Datanyze solves the core outbound problem: verified contact data at scale. Prospeo gives you 300M+ profiles with 98% email accuracy, 30+ filters including buyer intent and technographics, and a 7-day data refresh cycle - all starting at $0.01 per email. No contacts re-locked if you cancel.
Stop paying for data you lose the moment you cancel.
What Datanyze Actually Is
Datanyze is a budget B2B contact-reveal tool. ZoomInfo acquired it in 2018, and today it operates as a lightweight Chrome extension revealing emails and direct dials. The database runs 120M contacts, 84M email addresses, and 48M direct dials.
Here's where it gets frustrating. The credit model works like this: Pro 1 gives you 80 reveals/month for $29 ($21 annually), and Pro 2 bumps that to 160 for $55 ($39 annually). But cancel your subscription and previously revealed contacts get re-locked - you lose access to data you already paid to uncover. On r/sales, budget-conscious SDRs call Datanyze "best bang for the buck" at $29 for 80 reveals, but that framing tells you everything about its ceiling.
The tool carries a 4.1/5 across 446 reviews on G2, with recurring complaints about data accuracy and support, plus callouts about weaker coverage in India and APAC. G2 reviewers rate alternatives like Apollo as "better at meeting requirements" and "more usable." There have also been reports of the Chrome extension getting delisted from the Chrome Web Store - not great for a tool that lives entirely in the browser.
Side-by-Side Comparison
| Category | Altss | Datanyze |
|---|---|---|
| Target user | Fund managers | Sales/marketing teams |
| Category | LP intelligence | B2B contact reveals |
| Pricing | $15,500/yr flat | $21-55/mo |
| Database size | 1.5M+ allocators | 120M contacts |
| Data type | LP/allocator intel | Emails & direct dials |
| Key strength | Family office depth | Low cost per reveal |
| Key limitation | Niche market only | Contact lock-in on cancel |
| Rating | 5.0/5 (2 reviews, SourceForge) | 4.1/5 (446 reviews, G2) |
These tools don't overlap on a single dimension.
What You Probably Need Instead
Look - if you're doing outbound at any real volume, 80 credits/month is a rounding error. And with roughly 25-30% of B2B contact data decaying every year, you need a platform that refreshes aggressively, not one that re-locks your contacts when you cancel. In our experience testing dozens of these tools, the re-locking model is the single worst pricing mechanic in the category.
Unlike Apollo (paid plans start at $49/user/month) or Lusha (paid plans start at $36/user/month), the free tier gives you 75 emails/month with no credit card required - nearly matching Datanyze's $29/month plan, except with real-time verification instead of a static database. We've seen teams triple their pipeline just by switching from stale data to something that actually refreshes weekly; one customer, Meritt, went from $100K to $300K/week in pipeline and dropped their bounce rate from 35% to under 4%.
If you’re building lists in tools like Clay, it’s worth tightening your list building workflow so you’re not burning credits on bad records.
Hot take: If your outbound list is under 80 contacts a month and you never plan to cancel, Datanyze is fine. But the moment you scale past that - or want to keep the data you paid for - you've already outgrown it.
At that point, you’re shopping for a real sales prospecting database and a repeatable outbound lead generation motion, not a one-off reveal extension.
Datanyze caps you at 80 reveals for $29/month. Prospeo's free tier gives you 75 verified emails with no credit card required - backed by 5-step verification and weekly data refreshes that keep bounce rates under 4%.
Get near-Datanyze volume for free, with 98% accuracy baked in.
FAQ
Are Altss and Datanyze competitors?
No. Altss is an LP intelligence platform for fund managers raising capital from family offices and institutional investors. Datanyze is a budget B2B contact-reveal Chrome extension for sales teams. They share zero feature overlap and serve entirely different buyer personas.
Is Datanyze worth it for sales prospecting?
At $29/month for 80 contact reveals, Datanyze works for very occasional use. But the credit model burns fast, data accuracy is inconsistent outside North America and Western Europe, and revealed contacts get re-locked if you cancel. Higher-volume teams typically outgrow it within weeks.
What's the best alternative to Datanyze for verified B2B data?
Prospeo offers 300M+ profiles with 98% email accuracy and a 7-day data refresh - starting free at 75 emails/month. No credits that expire, no contact lock-in, and paid plans run roughly $0.01 per verified email. It also includes 30+ search filters like buyer intent and technographics that Datanyze lacks entirely.