Software Alternatives & Startups

Simple Calendar VS Cert Decoder

Compare Simple Calendar VS Cert Decoder and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Simple Calendar logo Simple Calendar

A simple calendar with events (optional recurring and reminders), week numbers and a customizable...

Cert Decoder logo Cert Decoder

Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.
  • Simple Calendar Landing page
    Landing page //
    2023-01-20
  • Cert Decoder
    Image date //
    2025-03-22

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.

Simple Calendar features and specs

  • Open Source
    Simple Calendar is open source, meaning the source code is publicly accessible. This transparency allows users to verify the security of the app and contribute to its development.
  • Privacy-Focused
    The app does not collect or share user data, which ensures a high level of privacy for users.
  • Ad-Free Experience
    Simple Calendar does not display ads, providing a cleaner and more user-friendly experience.
  • Offline Functionality
    The app can function fully offline, making it useful for users without consistent internet access.
  • Customizable
    Users can customize the look and feel of the calendar, including themes and colors, to suit their preferences.
  • Lightweight
    Simple Calendar is lightweight and does not consume significant device resources, ensuring smooth performance on a wide range of devices.
  • Integration with Other Simple Mobile Tools Apps
    It integrates well with other apps from Simple Mobile Tools, like Simple Contacts and Simple Notes, creating a more cohesive user experience.

Possible disadvantages of Simple Calendar

  • Limited Advanced Features
    Compared to some paid calendar apps, Simple Calendar lacks advanced features such as task management, event templates, and detailed recurring event options.
  • No Cloud Sync
    Simple Calendar does not offer built-in cloud synchronization across devices, which may be a drawback for users who want to access their calendar from multiple devices.
  • Lack of Integration with Popular Calendar Services
    The app does not offer seamless integration with popular calendar services like Google Calendar or Microsoft Outlook by default.
  • Learning Curve for Customization
    While the app is customizable, the process to set it up according to personal preferences can be confusing and time-consuming for some users.
  • Basic User Interface
    The user interface is simple and functional but may appear too basic and less aesthetically pleasing to users accustomed to more polished apps.

Cert Decoder features and specs

  • User-Friendly Interface
    Cert Decoder is designed with a simple and intuitive interface that makes it easy for users to navigate and use the tool without requiring extensive technical knowledge.
  • Comprehensive Analysis
    The tool provides detailed analyses of certificates, including information about validity, issuer, encryption algorithms, and more, helping users understand their security certificates thoroughly.
  • Free to Use
    Cert Decoder offers its services free of charge, making it accessible for individuals and organizations without budget constraints.
  • Quick Processing
    The tool processes certificate information rapidly, providing almost instant results for users, which is crucial for time-sensitive tasks.

Possible disadvantages of Cert Decoder

  • Limited Advanced Features
    Compared to some paid alternatives, Cert Decoder might lack advanced features that are necessary for more complex certificate management and diagnostics.
  • Reliance on Internet Access
    Users need an active internet connection to utilize the tool, which can be a limitation in areas with unreliable internet service.
  • Privacy Concerns
    While using an online service to decode certificates, there can always be privacy concerns regarding sensitive data being uploaded to a third-party server.
  • No Offline Mode
    Cert Decoder does not offer an offline mode, which could be a drawback for users who require functionality without constant internet availability.

Analysis of Simple Calendar

Overall verdict

  • Yes, Simple Calendar by Simple Mobile Tools is generally considered a good app.

Why this product is good

  • Open Source: It is an open-source application, which means the code is available for anyone to inspect, providing more transparency and security.
  • Privacy-Focused: Simple Calendar doesn't require unnecessary permissions or internet access, ensuring user privacy.
  • No Ads: The app is ad-free, providing a cleaner user experience.
  • User-Friendly: Designed to be straightforward, it's easy to navigate and use.
  • Customizable: Offers various customization options such as themes and widgets.

Recommended for

  • Users who value privacy and want a calendar app without data tracking.
  • Individuals looking for an ad-free scheduling experience.
  • Those who prefer customizable features to tailor the app to their liking.
  • Open-source enthusiasts who support community-driven projects.

Analysis of Cert Decoder

Overall verdict

  • Cert Decoder appears to be a free online tool for decoding and inspecting SSL/TLS certificates, CSRs, and related cryptographic data, making it useful for quick, no-install certificate analysis, though it should be used with awareness of general web tool privacy considerations when handling sensitive certificate data.

Why this product is good

  • Provides quick, browser-based decoding of certificates without needing to install software
  • Useful for troubleshooting SSL/TLS certificate issues on the fly
  • Simple interface aimed at both technical and semi-technical users
  • No cost to use for basic certificate decoding tasks

Recommended for

  • System administrators needing to quickly verify certificate details
  • Developers debugging SSL/TLS configuration issues
  • IT support staff troubleshooting website certificate errors
  • Students or professionals learning about certificate structure and encoding

Simple Calendar videos

Simple Calendar Android App Review (Widget)

More videos:

  • Review - Simple Calendar Pro Promo Video

Cert Decoder videos

No Cert Decoder videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Simple Calendar and Cert Decoder)
Calendar
100 100%
0% 0
Decoding
0 0%
100% 100
Appointments and Scheduling
Monitoring Tools
0 0%
100% 100

Questions & Answers

As answered by people managing Simple Calendar and Cert Decoder.

What's the story behind your product?

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.

Which are the primary technologies used for building your product?

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

How would you describe the primary audience of your product?

Cert Decoder's answer:

certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.

Why should a person choose your product over its competitors?

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.

Who are some of the biggest customers of your product?

Cert Decoder's answer:

certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Simple Calendar and Cert Decoder

Simple Calendar Reviews

The best third-party file managers for Android
Keep it simple with Simple File Manager Pro. Like Solid Explorer, the app is designed within the Material Design schematic, including using one floating action button to add a new file or folder. Simple File Manager Pro only works with localized files, however, and though it doesn't offer access to exterior cloud accounts, you can navigate root files, SD cards, and USB files...
The 13 best calendar apps for Android and iOS help you organize a chaotic day
Simple might be as simple does, but that doesn’t always have to be an insult. In the case of Simple Calendar, it wears its simplicity on its sleeve, proud for the world to see it in all its glory. Simple Calendar is exactly that — a simple way for you to see all of your upcoming appointments, meetings, or tasks on a simple calendar interface. Where Simple Calendar differs...

Cert Decoder Reviews

We have no reviews of Cert Decoder yet.
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Social recommendations and mentions

Based on our record, Simple Calendar seems to be a lot more popular than Cert Decoder. While we know about 100 links to Simple Calendar, we've tracked only 1 mention of Cert Decoder. 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.

Simple Calendar mentions (100)

View more

Cert Decoder mentions (1)

  • Banana.dog back from the dead
    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

What are some alternatives?

When comparing Simple Calendar and Cert Decoder, you can also consider the following products

Google Calendar - Spend less time managing your day & more time enjoying it

Morgen.so - All-in-one Calendar, Tasks & Scheduler. Morgen is the single hub for everything that revolves around time management.

Calendar Lock PEA - Calendar Lock PEA is an encrypted desktop calendar with a day, week and month view. The shown calendars are never stored unencrypted on your disk, but exist only in the RAM. Platform-independent, Open Source, no installation or registration required.

Apple Calendar - Calendar is a personal calendar app made by Apple Inc. that runs on both the macOS desktop operating system and the iOS mobile operating system.

Etar - Material design open source calendar for Android.

Nextcloud - With Nextcloud enterprises host their own secure cloud solution for storage, collaboration & communication from any device, anywhere.