
Photomath
The Homework App
Upshot
RaiseMe
Summize
NightOwl
Ask by NoteBear
AI homework helper that teaches students like a tutor

Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.

Which is more popular?
Based on our record, Cert Decoder seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | socraticapp.com | certdecoder.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United Kingdom · 1 - 9 employees · 2025 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Socratic App is an AI homework helper that guides students with step-by-step explanations across math, science, and more. Upload a question or describe the problem to get clear reasoning, not just the final answer. It’s built to help you learn faster, study smarter, and feel confident before...
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.
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
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 Socratic App and Cert Decoder.
Socratic App's answer
I started Socratic App because I saw many students struggling with their homework. They often got the right answers but did not understand how to solve the problems. I wanted to build a tool that acts like a patient tutor for everyone. Our goal was to create an app that explains the logic behind every step. Now students can learn better and feel more confident in school.
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.
Socratic App's answer
React Native, Next.js, TypeScript, Node.js, Azure (Azure OpenAI), Firebase, Stripe, PostHog (or Google Analytics), Figma
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
Socratic App's answer
High school students, college students, parents, tutors, and teachers
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
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.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Share your experience with using Socratic App and Cert Decoder. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Socratic App since Jan 2026.
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
When comparing Socratic App and Cert Decoder, you can also consider the following products.

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.
Compare Photomath to Socratic App or Cert Decoder:
The easy way to view and manage your student life.
Compare The Homework App to Socratic App or Cert Decoder:
Turn Autoshare ON for your nights out, trips & socials
Compare Upshot to Socratic App or Cert Decoder:

Reinventing the way HS students get college scholarships
Compare RaiseMe to Socratic App or Cert Decoder:

Scan a photo of your textbook or news article and instantly get a summary.
Compare Summize to Socratic App or Cert Decoder:

Easily toggle your Macs Dark Mode with this menubar app.
Compare NightOwl to Socratic App or Cert Decoder: