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Metamorphic VS Scratch

Compare Metamorphic VS Scratch and see what are their differences

Metamorphic

A habit tracker that can't read your habits.

Metamorphic Landing
Rating
0 reviews
Pricing
Freemium $5 / Monthly (Personal)
Alternatives Is it good?
Scratch

Scratch is the programming language & online community where young people create stories, games, & animations.

Scratch Landing page
Rating
5.0 · 1 review
Pricing
Open source
Alternatives Is it good?
Mind Diary
MindDiary therapy practice management software: digital intake, lead capture, client check-ins, therapist-reviewed AI notes, telehealth, and revenue follow-up. sponsored
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.

Which is more popular?

Based on our record, Scratch seems to be a lot more popular than Metamorphic. While we know about 578 links to Scratch, we've tracked only 1 mention of Metamorphic.

social mentions
1 vs 578
Goal Setting And OKRs popularity
100% vs 0%
alternatives listed
37 vs 240+

Base details

Website, pricing, platforms and company facts side by side.

Metamorphic
Scratch
Website metamorphic.app scratch.mit.edu
Pricing
Freemium $5 / Monthly (Personal) Official pricing
Open source
Company Startup from the United States · 1 - 9 employees · 2026 2007
Listed in
Habit Tracker Goal Setting And OKRs Self-Improvement Journaling Calendar And Scheduling Privacy +3
Kids Education Programming Coding Learn To Code Game Development Community +3

About Metamorphic and Scratch

In their own words, as submitted to SaaSHub.

Metamorphic
Scratch

The zero-knowledge habit tracker that puts you in control. End-to-end encrypted, beautifully simple, and built for people who take their privacy — and their progress — seriously.

Read more about Metamorphic

No description of Scratch yet.

Features and specs

What each product offers, as listed by its team.

Metamorphic 11 features
Scratch 6 features
  • Post-quantum cryptography
    Hybrid ML-KEM-768 + X25519 key encapsulation, the same approach as Signal.
  • End-to-end encryption on all plans
    All data encrypted client-side before reaching the server. Every plan, not a paid upgrade.
  • Zero-knowledge email
    No plaintext email stored. Only an HMAC blind index for lookups.
  • Habit tracking
    Daily/weekly check-ins, streaks, and drag-and-drop reordering.
  • Goal setting
    Milestones, progress bars, and habit linking.
  • Self-reflections
    Mood tracking and daily prompts.
  • Schedule & calendar
    Recurring events, day planner, and printable views.
  • Progress insights
    Activity heatmaps and completion stats.
  • Family & group accountability
    Shared habits, shared goals, group dashboard, and member spotlights.
  • Client-side data export
    JSON/CSV export decrypted entirely in your browser. Server never sees plaintext.
  • Three encryption layers at rest
    Client-side E2E → AES-256-GCM in Postgres → LUKS disk encryption.
  • Engaging Interface
    Scratch offers a visually appealing and user-friendly interface that makes it accessible for kids and beginners to learn programming concepts.
  • Community Support
    The platform has a large and active community where users can share projects, get feedback, and collaborate with others, fostering a sense of community and support.
  • Educational Value
    Scratch is designed with a strong pedagogical foundation, helping users to develop problem-solving skills, logical thinking, and creativity.
  • Drag-and-Drop Programming
    The block-based coding in Scratch eliminates syntax errors and simplifies the process of learning programming logic, making it ideal for beginners.
  • Free to Use
    Scratch is completely free to use, which makes it accessible to a wide audience without any financial barriers.
  • Portable
    Being web-based, Scratch can be accessed from any device with an internet connection, providing ease of access and flexibility.

Possible disadvantages

  • Limited Advanced Capabilities
    Scratch is mainly designed for beginners and might not offer the depth or complexities needed for more advanced programming projects.
  • Performance Issues
    Larger projects can sometimes become slow or unresponsive, particularly on less powerful devices.
  • Simplified Programming
    The drag-and-drop nature of Scratch, while educational, might limit exposure to the syntax and intricacies of written programming languages.
  • Internet Dependency
    Scratch primarily requires an internet connection, which could be a limitation in areas with poor connectivity.
  • Age Focus
    The platform is highly targeted towards younger audiences, which might not be appealing or suitable for older learners or adults seeking beginner resources.
  • Privacy Concerns
    As with any online community, there are potential privacy and security risks, especially for younger users, which require careful monitoring and guidance.

Analysis

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

Metamorphic
Scratch

No analysis of Metamorphic yet.

Overall verdict

  • Yes, Scratch is generally considered good for its intended purpose. It serves as an excellent introduction to programming for young learners and is praised for its simplicity, ease of use, and educational value.

Why this product is good

  • Scratch is a visual programming language designed primarily for children and beginners to learn the basics of coding and computational thinking. It promotes creativity, logic, and problem-solving skills in a user-friendly environment. Scratch provides a platform for users to create interactive stories, games, and animations, which can be shared within an active online community, fostering collaboration and feedback.

Recommended for

  • Children aged 8-16 who are interested in learning programming
  • Educators and parents seeking to introduce coding concepts
  • Beginners in programming who prefer a visual approach
  • Anyone looking to explore digital creativity through interactive media

Videos

Walkthroughs and reviews on video.

Metamorphic 1 video + Add
Scratch 3 videos + Add

Creator Walkthrough: Exploring Metamorphic’s Features & Benefits

Scratch 3.0 Review: My Thoughts About Scratch 3.0

More videos

  • Review - Numark PT01 Scratch Review
  • Review - Meguiar's scratch X 2.0 review

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Metamorphic
Scratch
100% 100%
Goal Setting And OKRs
0% 0%
0% 0%
Kids Education
100% 100%
100% 100%
Habit Tracker
0% 0%
0% 0%
Programming
100% 100%

Questions & Answers

As answered by people managing Metamorphic and Scratch.

Who are some of the biggest customers of your product?

Metamorphic's answer

Metamorphic is a new product and we don't disclose customer names. By design, we know as little about our users as possible — that's the point of zero-knowledge architecture.

What makes your product unique?

Metamorphic's answer

Metamorphic is a zero-knowledge, end-to-end encrypted habit tracker — every piece of user data is encrypted client-side before it ever reaches the server. Unlike competitors that treat encryption as a premium add-on, Metamorphic includes it on every plan, including Free. It also uses hybrid post-quantum cryptography (ML-KEM-768 + X25519), the same approach adopted by Signal and Apple iMessage, making it one of the first habit trackers with quantum-resistant key distribution. The server never stores plaintext — not even your email address.

Why should a person choose your product over its competitors?

Metamorphic's answer

Most habit trackers store your data in plaintext on their servers. Metamorphic never sees your data — all encryption and decryption happens in your browser. If the server were fully compromised, an attacker would get only opaque ciphertext. Beyond privacy, Metamorphic is a complete self-improvement platform: habit tracking with streaks and drag-and-drop reordering, goal setting with milestones and progress bars, daily self-reflections with mood tracking, a full schedule and calendar with recurring events and printable views, progress insights with activity heatmaps, and family/group accountability with shared habits and goals. You get the depth of a full-featured tracker with the privacy of an E2E encrypted system — no trade-off required.

How would you describe the primary audience of your product?

Metamorphic's answer

Privacy-conscious individuals and families who want a serious habit and self-improvement tool without surrendering their personal data to a third party. People who care about building better routines — daily habits, long-term goals, journaling, scheduling — but also care about who can read their data. Particularly relevant for anyone who has thought twice about logging personal struggles, health habits, or family goals into an app that stores everything in plaintext.

What's the story behind your product?

Metamorphic's answer

Metamorphic grew out of a personal conviction. Its creator, Mark Thayer, was building another app (Mosslet) around the time he was becoming a new dad. Reading Shoshana Zuboff's The Age of Surveillance Capitalism made him want a better digital world for his child. When Meta rolled back end-to-end encryption on its direct messaging, he was pushed to implement real E2EE in Mosslet — built on an asymmetric, password-derived key architecture.

The idea for Metamorphic itself came from his partner, who is passionate about psychology and behavior — always thinking about how to break old habits and form better ones. It clicked: something as personal as your habits, goals, and daily reflections should be private to only you, and you shouldn't have to worry about it being otherwise. So Metamorphic was built from day one around zero-knowledge architecture, where encryption is the foundation rather than an afterthought.

Which are the primary technologies used for building your product?

Metamorphic's answer

  • Elixir and Phoenix LiveView (real-time web application)
  • PostgreSQL with Ecto (database)
  • libsodium / NaCl (client-side end-to-end encryption)
  • @noble/post-quantum (ML-KEM-768 hybrid post-quantum key encapsulation)
  • Cloak / AES-256-GCM (application-level at-rest encryption)
  • Argon2id (password hashing and key derivation)
  • Tailwind CSS (UI styling)
  • Stripe (billing and subscriptions)
  • Oban (background job processing)
  • Fly.io (hosting, LUKS-encrypted storage volumes)

User comments

Share your experience with using Metamorphic and Scratch. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Metamorphic no reviews yet
Scratch 5.0 · 1 review

We have no reviews of Metamorphic yet. Be the first one to post

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Metamorphic 1 mention
Scratch 578 mentions
  • How would you know whether an ancient culture had zero?
    What I wonder is: why has nobody noticed that code editors lack a concept of 0? When you're writing code, you can express any concept except that of an unfilled hole. We've rearranged every part of the coding process in a twisted-up way,... - Source: Hacker News / 16 days ago
  • Mini Micro Fantasy Computer
    Sounds like Scratch: https://scratch.mit.edu/. - Source: Hacker News / 4 months ago
  • Usborne 1980s Computer Books
    The average house in the UK now has 1.3 laptops. https://www.theguardian.com/technology/2015/apr/09/online-all-the-time-average-british-household-owns-74-internet-devices A windows laptop from today is vastly easier to code on that a C64... - Source: Hacker News / 4 months ago

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Alternatives to Metamorphic and Scratch

When comparing Metamorphic and Scratch, you can also consider the following products.

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