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Kodable
Tynker
Coding with Kids
Code for fun offers coding programs, robotic and technology classes for kids.

Veklar
Sociall (Beta)
Habitica
Solcial
Karmanadi
Habitify
ChatterBooth
A habit tracker that can't read your habits.

Which is more popular?
Based on our record, Metamorphic seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codeforfun.com | metamorphic.app |
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| Company | — | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Code for Fun yet.
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.
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
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Creator Walkthrough: Exploring Metamorphic’s Features & Benefits
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Code for Fun and Metamorphic.
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.
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.
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.
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.
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.
Metamorphic's answer:
Share your experience with using Code for Fun and Metamorphic. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Code for Fun since Jul 2021.
I'm the solo dev at Moss Piglet, a bootstrapped public benefit company. I've been building Metamorphic — a habit and self-improvement tracker where all personal data is encrypted client-side before it ever reaches the server. The server... - Source: dev.to / 5 months ago
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