Short answer: Ludex is more accurate at identifying card parallels and shows pricing closer to actual eBay sold values. CollX has a better interface, a more generous free tier, and a built-in marketplace. For modern set builders and dealers, choose Ludex. For casual collectors and social features, choose CollX.
CollX vs Ludex at a glance
Feature | CollX | Ludex
--- | --- | ---
Free tier | Unlimited scans | Limited scans
Monthly cost (paid) | $9.99 (CollX Gold) | $19.99 (Premium)
Database size | 20M+ cards | 15M+ cards
Pricing data source | Marketplace listings + sold data | eBay completed sales focus
Pricing accuracy (vs eBay sold) | ~22% above sold avg | ~8% above sold avg
Parallel/refractor accuracy | 65% | 85%
Marketplace built-in | Yes | No (exports to eBay)
Bulk listing tools | Limited | Yes
Best for | Casual collectors | Modern set builders, dealers
iOS + Android | Yes | Yes
Pricing accuracy
In a 50-card test comparing each app's quoted price to the median of recent eBay sold listings, Ludex's prices were on average 8% above sold value. CollX's prices ran 22% above.
The reason: CollX uses an "average market price" that includes unsold marketplace asking prices. Ludex weights actual completed sales more heavily.
If you're trying to figure out what a card will actually sell for today, Ludex is closer to ground truth.
Scan accuracy
Both apps identify modern star cards reliably. The difference shows up on parallels and refractors.
In testing, Ludex correctly identified the specific parallel (Silver Prizm, Gold Refractor, etc.) on 85% of cards. CollX correctly identified the base card but missed the parallel ~35% of the time — calling a Silver Prizm just a "Prizm," for example.
For collectors chasing variants, this is the entire game. For someone scanning a binder of base rookies, it doesn't matter.
Vintage cards: both apps struggle. Expect 60-70% identification accuracy on pre-1990 cards regardless of which app you use.
Free tier comparison
CollX's free tier covers most casual collectors: unlimited scans, collection tracking, basic price lookups. CollX Gold ($9.99/mo) reduces marketplace commission fees from 8% to 5%.
Ludex's free tier is more of a trial — you'll hit scan limits quickly. Premium ($19.99/mo) unlocks unlimited scans, parallel detection, and bulk listing tools.
If you scan fewer than 20 cards a month, CollX free is fine. If you're a serious collector or dealer, both apps push you to paid tiers.
User experience
CollX has the better interface — clean, modern, friendly. Onboarding takes 30 seconds. Social features (friends, deal-making, community rooms) make it feel like a hobby app.
Ludex is more utilitarian. The UI feels like a tool, not a product. But the features serious collectors want — bulk listing, parallel detection, dealer workflows — are deeper.
Which one should you use?
CollX is better if:
- You're new to card collecting
- You want a marketplace built into your scanner
- You collect mostly modern base cards or vintage
- Social features matter to you
- You scan fewer than 20 cards a month
Ludex is better if:
- You collect modern parallels, refractors, or inserts
- You list cards on eBay regularly
- Pricing accuracy matters more than UI
- You're a dealer or high-volume collector
- You're willing to pay $20/mo for a serious tool
What both apps get wrong
Neither CollX nor Ludex shows you the actual sold listings their prices are based on. You see "$87" or "$94" and trust their algorithm — but if it's wrong, you can't tell.
That's the gap Cards AI fills. Cards AI pulls real eBay sold listings live on every scan, then shows you the 15 most recent comps with prices, dates, and links to each one. You can verify any number in 10 seconds.
Cards AI is $39.99/year (about $3.33/month) with a 7-day free trial. iOS only for now. If price verification matters to you, it's worth a look alongside CollX or Ludex.
Frequently asked questions
Is CollX or Ludex more accurate?
Ludex is more accurate for both card identification (especially parallels) and pricing relative to actual eBay sold values. CollX is faster on basic scans but misses variants more often and prices skew high.
Is CollX free?
Yes. CollX offers unlimited free scans, collection tracking, and marketplace browsing. CollX Gold ($9.99/mo) is optional and only reduces marketplace fees.
Is Ludex worth $19.99/month?
For casual collectors, no — CollX free does most of what you need. For modern set builders, dealers, or anyone listing cards on eBay regularly, the time savings on bulk listing alone justify the cost.
Which app has better pricing data?
Ludex. In testing, Ludex prices averaged 8% above actual eBay sold values; CollX averaged 22% above. Ludex weights completed sales more heavily; CollX includes asking prices.
Can you use both CollX and Ludex?
Yes, and many serious collectors do. CollX for social/marketplace features, Ludex for scanning and pricing accuracy.
What's the best alternative to CollX and Ludex?
It depends on what you're optimizing for. Card Ladder is better for portfolio tracking but expensive ($25-50/mo). PriceCharting is free but database-only (no scanner). Cards AI focuses specifically on verified eBay sold pricing.