
Omni Calculator
calculator.net
Build vs. Buy Calculator
DeveloperToolStack
DevNestTools
DevTools Advanced
DevTools.fit
Free, no-signup calculators for the money side of building software and freelancing

Collectr
Card Ladder
Alt
Relic Roster
DarkDex.app
CardIndex
TCG Stacked
CollX (“collects”) answers the age-old question: “What’s it worth?” The app can scan any baseball, football, or basketball card and instantly ID it and get the avg market value.
Which is more popular?
Based on our record, CollX seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | devfinancetools.com | collx.app |
| Pricing | — | |
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


DevFinanceTools is a collection of free, no-signup calculators for the money side of building software and freelancing. Everything runs in your browser — no account, no tracking beyond basic page-view analytics — and every tool shows its formulas and benchmarks so you can check the maths...
No description of CollX yet.
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
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Is CollX an App worth getting?
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using DevFinanceTools and CollX. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking DevFinanceTools since Aug 2026.
I'd recommend starting with something like collx.app to scan the cards and get a rough sense of value. If it's past your threshold (say $50) then you can look into the pricing history a bit more. The best tools for that would probably... Source: about 3 years ago
You can use a tool like collx.app to scan each card and check how much they're selling for. If you want to look at graded copies for each card you can use cardboard.market to search up the card + the grade and see sold listings and also... Source: about 3 years ago
I started using CollX, an app to helps me figure out how much my trading cards are worth. You should get it, too! Check out my collection and add yours. Use my referral code, NZ3SY, when signing up. http://collx.app. Source: over 4 years ago
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Collectr is the world’s fastest growing collectibles portfolio manager.
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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
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Should you build an internal tool? Or just buy it?
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