Updated May 13, 2026 · Independent Analysis
Only in SISTRIX
- ✦ Visibility Index
- ✦ Keyword Analysis
- ✦ Domain Analysis
From $99/mo(pricier)100k+ users users · est. 2007
Only in SpyFu
- ✦ Competitor organic keyword history
- ✦ PPC keyword research
- ✦ Ad copy history
✓ Free planFrom $39/mo(cheaper)N/A users · est.
Real-World Scenarios: When to Choose Which
The question that matters: “In what situation will I regret choosing A over B after 3 months?”
SpyFu Unique Strength
Competitor PPC Audit
Identify 500 keywords a competitor buys in Google Ads with their ad copy history to inform your own campaign strategy
→ Choose SpyFu if this scenario applies to you. SISTRIX doesn't offer a comparable solution.
SpyFu Unique Strength
Organic Gap Analysis
Find keywords where 3+ competitors rank but your domain doesn't appear to discover 200 content opportunities
→ Choose SpyFu if this scenario applies to you. SISTRIX doesn't offer a comparable solution.
SpyFu Unique Strength
Historical Keyword Research
Analyze 10 years of keyword ranking history to identify seasonal patterns before launching seasonal campaigns
→ Choose SpyFu if this scenario applies to you. SISTRIX doesn't offer a comparable solution.
SpyFu Unique Strength
New Market Entry
Before entering a new vertical, map the top 10 competitors' keyword footprints to estimate traffic potential and competition
→ Choose SpyFu if this scenario applies to you. SISTRIX doesn't offer a comparable solution.
Pricing Intelligence
SpyFu saves you $60/user/movs SISTRIX

SISTRIX Plans
Paid plans only
- • 1 domain
- • Visibility Index
- • Keyword research
- • 3 domains
- • Competitor analysis
- • Backlinks
- • 10 domains
- • All modules
- • API access
Full SISTRIX Pricing Breakdown →
SpyFu Plans
Free tier available
- • Limited searches/day
- • Basic competitor data
- • 10 results per search
- • Unlimited searches
- • 6 months history
- • 250 leads/mo
- • 15 years history
- • 500 leads/mo
- • API access
- • Custom reports
Full SpyFu Pricing Breakdown →Feature Matrix
7 differences found across 17 standardized features
Pros & Cons Face-Off
Evaluative strengths and weaknesses — not feature lists
Pros
- +Unique Visibility Index metric
- +Strong historical data
- +Excellent for European markets
- +Good competitor benchmarking
Cons
- −More expensive than some alternatives
- −Less popular outside Europe
- −Fewer backlink data points
Pros
- +15+ years of historical keyword data no other tool matches
- +Best competitor PPC research with ad copy history and spend estimates
- +Significantly cheaper than Semrush or Ahrefs for similar competitor intelligence
Cons
- −Backlink index is smaller and less fresh than Ahrefs or Majestic
- −No content optimization or on-page SEO tools
At a Glance
Starting Price$99/movs$39/mo
Feature Count15 featuresvs14 features
Frequently Asked Questions