
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

The QR Scanner
Privacy Friendly QR Scanner
SuperCards - Loyalty Cards
2scan.net
QR Code Scanner Online
Catima
QR From Pic
Save loyalty cards, QR codes, tickets, and barcodes in one offline wallet. Import screenshots, organize folders, and open any code in one tap on iPhone or Android.
Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | devfinancetools.com | scankeeper.app |
| Pricing | ||
| Platforms | — | |
| Company | 2026 | Startup from the United States · 1 - 9 employees |
| 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...
ScanKeeper is an offline loyalty card wallet and barcode organizer for iPhone, iPad and Android. It turns plastic loyalty cards and forgotten screenshots into one tidy wallet: scan a code with the camera, import it from Photos, or bulk-import up to 50 screenshots at once. Cards open instantly at...
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


No analysis of DevFinanceTools yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing DevFinanceTools and ScanKeeper.
ScanKeeper's answer:
ScanKeeper is built around one insight: most people already have their codes — as plastic cards and screenshots buried in their photo gallery. ScanKeeper turns them into a wallet: it can bulk-import up to 50 screenshots at once and recognize the codes automatically. Everything works fully offline, with no account or sign-up, and the free version has no card limits.
ScanKeeper's answer:
Most loyalty card apps push accounts, offers, or subscriptions. ScanKeeper stays a simple, fast wallet: no registration, no card limits, and every feature included for free. Cards open instantly at full brightness even without signal, and bulk import from Photos means you can migrate your whole collection in a minute instead of scanning cards one by one. The only monetization is unobtrusive ads, removable with a single one-time purchase.
ScanKeeper's answer:
Everyday shoppers who carry a stack of plastic loyalty cards and keep screenshots of QR codes scattered across their photo gallery. It also fits privacy-conscious users who want an offline app with no account, and anyone organizing gym memberships, library cards, tickets, and passes in one place.
Share your experience with using DevFinanceTools and ScanKeeper. For example, how are they different and which one is better?
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