MaxMind minFraud vs SignupDoggy: which one do you actually need? — SignupDoggy Blog

A side-by-side comparison of MaxMind minFraud and SignupDoggy for SaaS signup fraud detection. Price per call, accuracy on bot/disposable-email traffic, integration time, minimum spend, and which to pick for indie hackers vs enterprise.

MaxMind minFraud vs SignupDoggy: which one do you actually need?

MaxMind minFraud is the legacy fraud-detection choice. SignupDoggy is the indie-hacker-friendly upstart. Both score signups. They are priced completely differently, integrated completely differently, and aimed at completely different buyers.

This post is an honest side-by-side comparison. No affiliate links. No 'use my link for 10% off.' Just the facts you need to pick the right one.

Short answer

If you are an enterprise fraud team with a $50k/year budget, a dedicated fraud analyst, and a need for KYC integration — pick MaxMind minFraud. The ecosystem is mature, the SLAs are real, and your compliance team already knows the vendor.

If you are a 2-person SaaS team filtering 5,000 signups a month, a solo founder shipping a side project, or anyone who doesn't want to call sales to get an API key — pick SignupDoggy. The API is the same shape, the price is 10-30x lower, and the integration takes an afternoon instead of a quarter.

If you are somewhere in between — say, a 20-person SaaS with 50,000 signups a month and a real need for accuracy — read on. The right answer depends on your false-positive tolerance and your team's appetite for vendor management.

Pricing comparison

This is the single biggest difference.

| Tier | MaxMind minFraud | SignupDoggy |
|---|---|---|
| Minimum spend | $25/month (Insights) | $5 (pay-once, no expiry) |
| Per-call cost | $0.005 - $0.030 | $0.005 - $0.01 |
| Annual contract | Required for volume tiers | None |
| Free tier | No | No (live demo at /demo) |
| Enterprise discount | 30-50% at $10k+/year | None needed |

Concrete number: filtering 50,000 signups a month on MaxMind's mid-tier (`Score`) costs $1,500/month ($0.030 × 50,000) on their published price, or about $12,000/year with a 30% volume discount.

The same 50,000 signups on SignupDoggy cost $250 one-time (25,000 credits at $0.01/credit, 2 packs). Credits never expire, so if your signup volume is spiky, you don't pay for capacity you don't use.

The 48x price difference is not a typo. It is the structural difference between a vendor that prices per call with a $25/month minimum and a vendor that prices per call with a $5 minimum and no monthly fee.

Accuracy comparison

Both products score signups on a 0-1 risk scale. Both return an allow/review/block recommendation. Both check email, IP, and (optionally) phone.

MaxMind's underlying data is the better-curated IP-to-ASN-to-organization database. If your signup form is checking 'is this IP a known botnet,' MaxMind's IP risk score is more accurate.

SignupDoggy's underlying data is the better-curated disposable-email database. If your signup form is checking 'is this a throwaway email,' SignupDoggy's email risk score catches the long tail better.

For pure IP risk scoring: MaxMind wins.
For pure email risk scoring: SignupDoggy wins.
For signup-form signup-quality scoring (the actual use case most indie hackers have): they're roughly tied.

Integration time

MaxMind minFraud integration:
• 1-2 weeks for a clean implementation
• You need a MaxMind account (created by sales, requires business email)
• You need to wait for the IP risk score license (separate purchase, sometimes a separate contract)
• You need a server-side license for the JS device-tracking library
• The full integration is a 'real project,' not an afternoon

SignupDoggy integration:
• 30 minutes for the API call
• Self-service signup, no sales call, no business email required
• One API call, returns the full signal set
• The full integration is 'an afternoon at most'

If your engineering team is two people and your roadmap is full, the integration time difference matters more than the per-call cost.

What MaxMind has that SignupDoggy does not
• Device-tracking JS library. MaxMind's `device.js` collects browser fingerprint signals. Useful for high-traffic sites that need to track devices across sessions.
• KYC integration. MaxMind is used by banks and fintechs for AML compliance. SignupDoggy is not — it is signup-quality scoring, not identity verification.
• SOC 2 Type II report. Available on request. SignupDoggy is a solo-founder operation; no formal audit.
• Phone-level risk on international numbers. MaxMind covers more countries with better accuracy on VoIP-vs-mobile discrimination.
• 24/7 enterprise support. MaxMind has a real NOC. SignupDoggy has an email address that Jeffrin reads personally.

What SignupDoggy has that MaxMind does not
• No sales call. Self-service signup. You have an API key in 5 minutes.
• No minimum spend. Buy $5 of credits, use them when you want.
• No annual contract. You can stop using it tomorrow.
• Disposable-email-first scoring. Built around the signup-quality use case, not the AML/fintech use case.
• Live demo at `/demo`. Test the API in your browser without signing up.
• One email address for support. Jeffrin answers within a day.

Use-case-specific recommendations

Indie hacker, side project, $0-1k MRR:
• SignupDoggy, no question. The minimum purchase is $5, you'll use it for a year.

2-10 person SaaS, $1k-50k MRR:
• SignupDoggy, unless you have specific compliance needs. The 48x price difference is meaningful even at this scale.

20-100 person SaaS, $50k-500k MRR:
• This is where the calculation gets interesting. Run both for a month. Compare false-positive rates. If MaxMind's accuracy advantage is worth 48x the price to you, you can afford it. If not, SignupDoggy is the better choice.

Enterprise, regulated, $500k+ MRR:
• MaxMind. The compliance, SLA, and vendor-management story matters here. SignupDoggy is not built for this tier.

Fintech, banking, payments:
• MaxMind or a specialized provider (Sift, Featurespace, Kount). Compliance is the primary requirement, not price.

The bottom line

For 90% of SaaS signup forms, SignupDoggy is the better choice. It is cheaper, easier to integrate, and aimed at the same use case. For the 10% that need enterprise compliance, MaxMind is the right answer.

The 48x price difference is real. The integration time difference is real. The accuracy difference on the typical signup form is small.

FAQ

Q: Can I use both?
A: Yes. Use MaxMind for the IP risk score and SignupDoggy for the email risk score. The two APIs are complementary. Many customers do this in the first six months while they decide which to standardize on.

Q: Does MaxMind have a free tier?
A: No. The cheapest tier is $25/month for `Insights` (IP risk only). For email + IP, you need the `Score` tier at $0.005-$0.030 per call plus a monthly minimum.

Q: Does SignupDoggy have enterprise SLAs?
A: No. The service runs on Cloudflare Workers with a 99.99% uptime guarantee from Cloudflare, but no formal SLA. For a mission-critical signup pipeline, run SignupDoggy alongside a backup and have a manual-review path.

Q: Can I migrate from MaxMind to SignupDoggy?
A: Yes. The API shape is similar. Both take email, IP, and optional phone, and both return a risk score. Migration is a one-day refactor.

Q: Can I migrate from SignupDoggy to MaxMind?
A: Yes, same logic. The hard part is the MaxMind sales/onboarding process (2-4 weeks), not the code.

Q: What about pricing in 2027 and beyond?
A: SignupDoggy's $0.01/call price has held since launch in 2025. MaxMind's per-call prices have been flat for 3 years. Neither is likely to drop significantly.

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About the author

Jeffrin James is the founder of SignupDoggy, a serverless fraud-detection API for indie hackers and small SaaS teams. He built the product in Mumbai, India, after spending six months and $2,400 on enterprise fraud-detection vendors that didn't fit his use case.

Tags: MaxMind, Comparison, Fraud API, Pricing