Tiger Math
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Cert Decoder
Tiger Math is an ad-free math learning app for kids ages 6–12, with 8 topics, story mode and offline practice on iOS, Android and macOS.
Cert Decoder is a free online tool that helps you decode X.509 SSL/TLS certificates in PEM format. It instantly shows important information like the issuer, expiry date, SAN entries, and fingerprint. All data is processed locally in your browser, so nothing is ever sent or stored elsewhere.
Tiger MathTiger Math's answer
Tiger Math started because my son kept getting bored on his phone — the games he had access to were either mindless or loaded with ads and upsells. I wanted to build something that would hold his attention while actually teaching him math, without the manipulative mechanics most kids' apps rely on. That's why it's ad-free, story-driven instead of loot-box-driven, and a one-time purchase instead of a subscription — it's built the way I wanted my own kid's math app to work.
Cert Decoder's answer:
I built certdecoder.com over the weekend for my own needs. Sometimes in my work, I need to verify and check certificate details.
Tiger Math's answer
Built with React Native
Cert Decoder's answer:
certdecoder.com was built using just JavaScript and HTML—simple, fast, and with all processing happening locally in your browser, so no certificate data is sent to any server
Tiger Math's answer
Parents of children ages 6–12 looking for focused, distraction-free math practice — particularly homeschool families and parents who want a low-pressure, structured tool for kids who find traditional math practice frustrating (including ADHD-friendly, low-clutter design).
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Tiger Math's answer
Most math apps for kids (Prodigy, SplashLearn, IXL, Mathletics) run on subscriptions or ad-supported freemium models. Tiger Math is a single purchase that covers up to 5 kids for life — no recurring cost, no ads, ever. It's also narrowly focused on 8 core math topics for ages 6–12, rather than being a broad multi-subject platform, so the difficulty adapts specifically to math skill progression.
Cert Decoder's answer:
Simple, fast, and reliable. Some similar tools can’t even decode basic certificates. I rigorously tested my tool with many real-world certificates and covered several edge cases where competitors fall short.
Tiger Math's answer
Individual families — Tiger Math is a consumer app, not sold to organizations, so there's no B2B customer list to share.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Tiger Math's answer
Tiger Math is ad-free with no in-app upsells, and unlocks with a single one-time lifetime purchase instead of a subscription — that pricing model covers under 5% of the app market. Kids progress through a story-mode adventure instead of loot boxes or streak-guilt mechanics, the app works fully offline, and it's available in 8 languages across iOS and Android.
Based on our record, Cert Decoder seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Why? Because I built certdecoder.com and couldn’t find a decent place to submit it. So I said screw it — I’ll build my own. With blackjack and hookers. - Source: dev.to / over 1 year ago
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Level Up Math - Adaptive K-8 math practice. Meets students at their level. Builds real skills, real confidence, real results.
Photomath - Photomath is a mobile app that will give you the ability to test your equations through a simple calculator interface that will fully explain the solution in a step-by-step fashion. Read more about Photomath.
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