
Doppler
Infisical
Vault by HashiCorp
EnvKey
AWS Secrets Manager
1Password
Configu
Sync .env files

ChainMemory
Memori
Mem0
Agentmemory
TheSecondBrain.dev
cognee
VATES.jp
A personal memory layer for your AI tools, connected over MCP.

Which is more popular?
Based on our record, Dotenv 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 | dotenv.org | tempreon.com |
| Pricing | ||
| Platforms | ||
| Company | 2021 | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Sync .env files. Stop sharing them over insecure channels like Slack and email and never lose an important .env file again.
Tempreon is a personal memory layer for your AI tools, connected over MCP. Your knowledge, preferences, and decisions travel across Claude, ChatGPT, Cursor, and any MCP-capable client — captured once, available everywhere. It learns how you actually work instead of just storing what you said.
What each product offers, as listed by its team.


Walkthroughs and reviews on video.
1 Minute Overview
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Dotenv and Tempreon.
Tempreon's answer:
Tempreon started with a simple observation: AI models keep changing, but the thing that makes them useful to you — your context, your preferences, your judgment — gets rebuilt from scratch inside every tool, and lost every time you move.
We built the layer that fixes that: person-owned memory served over the open Model Context Protocol, so it works across assistants instead of belonging to one. Along the way we open-sourced the pieces that are useful to everyone regardless of whether they use Tempreon — like memhaul, our MIT-licensed CLI for turning ChatGPT and Claude data exports into files you own.
The through-line is custody: the model is temporary, your memory shouldn't be.
Tempreon's answer:
Most alternatives in this space are memory infrastructure for developers building their own AI apps. If you're the person using several AI tools every day, that's not your problem — your problem is re-explaining yourself to each of them and losing everything when you switch.
The choice is really about who the memory is for. Ours is for you.
Tempreon's answer:
Tempreon is built for the person, not the app. Most memory products are developer APIs for adding memory to a single product; Tempreon is a memory layer you own that travels with you across every AI tool you use — Claude, ChatGPT, Cursor, anything MCP-capable.
Tempreon's answer:
Individuals who live in AI tools all day: operators, consultants, founders, sales professionals, and knowledge workers who use more than one assistant and are tired of being a stranger to each of them.
If you've ever pasted the same context into Claude and ChatGPT in the same week — you're the audience.
Tempreon's answer:
The protocol choice is the product decision: build on the open standard, and your memory works everywhere the standard does.
Share your experience with using Dotenv and Tempreon. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Dotenv makes working with .env files across a team and multiple environments a great experience. Very simple and easy to set up and easy to work with
Works smoothly without any issues and syncs env variables across different environments.
We have no reviews of Tempreon yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Dotenv — Sync your .env files, quickly & securely. Stop sharing your .env files over insecure channels like Slack and email, and never lose an important .env file again. Free for up to 3 teammates. - Source: dev.to / almost 4 years ago
Tracking Tempreon since Jul 2026.
When comparing Dotenv and Tempreon, you can also consider the following products.

Doppler is the multi-cloud SecretOps Platform developers and security teams trust to provide secrets management at enterprise scale.
Compare Doppler to Dotenv or Tempreon:

Portable, verifiable memory for AI agents — works across ChatGPT, Claude, Gemini and any MCP client
Compare ChainMemory to Dotenv or Tempreon:

Infisical is an open source, end-to-end encrypted platform that lets you securely sync secrets and configs across your engineering team and infrastructure
Compare Infisical to Dotenv or Tempreon:

Persistent memory from agent trace, not just conversation
Compare Memori to Dotenv or Tempreon:

