SoulEcho
✦ AI Journaling · End-to-End Encrypted

The Journal that doesn't affirm you but confronts you.

SoulEcho combines daily journaling with AI-powered deep reflection honest, precise, fully encrypted.

So you can finally write what you truly think.

End-to-End Encrypted · GDPR-compliant · No data sharing · EU servers

Start for free →

No download · Works in browser · Free to begin

✦ The Difference

No diary.
A psychological X-ray machine.

While other apps affirm you, SoulEcho confronts you with what you haven’t yet put into words.

Other Journaling Apps
  • Affirm what you already think
  • Generic prompts for everyone
  • Your data is their product
  • Writing as a feel-good ritual
  • No depth, no confrontation
SoulEcho
  • Asks the questions you avoid
  • AI analysis of your own patterns from real entries
  • End-to-end encrypted — not even we can read them
  • Socratic dialogue that truly digs deep
  • Weekly deep questions that resonate for 5 days
4
AI Analysis Layers
6
Security Layers
AES‑256
Local Encryption
EU
Server Location
0
Data Sharing
✦ How it works

Three steps to yourself

No stressful onboarding. No long questionnaires. Just start.

01
✍️
Write without filters

What truly moved you today? SoulEcho gives you a daily prompt — or you can start freely. Mood, sleep, and energy are automatically tracked.

02
🪞
Echo digs deeper

Echo analyzes your entry and gives you a personal reflection impulse — no platitudes, just direct responses to your own words. Then 6 rounds of Socrates.

03
📈
Recognize your patterns

Over time SoulEcho builds a picture of you — 10 personality dimensions, mood trends, relational patterns. You see what’s really changing.

✦ Resonance · Premium Feature

One question.
Five days. Real depth.

Every week Echo generates a deep personal question from your entries — not a generic exercise, but tailored exactly to you.

Resonance · Your question this week
When was the last time you gave something up — and was it a defeat or a liberation?

You don’t have to find an answer today. This question will stay with you for 5 days.

Reflect now →
✦ Features

Everything you need

From daily reflection to deep personality analysis — all in one app.

✍️
Daily · Free
Daily Impulse

After every entry you receive a personal AI impulse — an honest reflection of your own words, never generic advice.

Claude · Gemini 2.5 Flash
💬
Echo Dialogue · Free
Socratic Dialogue

6-round conversation after the impulse. Echo asks follow-ups and questions specific phrases from your entry — precise, honest, never cold.

Round 1: Question · Round 2: Depth · Round 3: Synthesis
🏛
Resonance · Premium
Weekly Deep Question

One AI-generated deep question based on your real entries — for 5 days. Day 1 you write, Day 3 and 5 you reflect on what changed.

Personalized · 5-Day Cycle · Echo Analysis
🧠
Premium · Character
Personality Profile

10 personality axes built over time — iteratively, not from zero. Echo detects changes and shows you what has truly shifted.

10 Dimensions · Iterative Learning · Radar Chart
📊
Weekly & Monthly
Pattern Analysis

Automatic AI analysis of your sleep, energy, and mood patterns. Which situations correlate with good mood? What drains your energy?

Daily Mood · Sleep Patterns · Energy Patterns
🔒
Security · Always
End-to-End Encrypted

Your entries are encrypted locally with AES-256 before they ever reach the cloud. Not even we can read them — only you.

AES-256 · Local Key · Zero-Knowledge
"

Socrates is not your friend — he is your mirror.
When the analysis hits and you have to swallow hard,
that’s when the real work begins.

✦ 6-Layer Security System

Your thoughts
belong only to you.

SoulEcho was built from the ground up with privacy as the first principle. No selling of user data, no sharing with advertising partners, no training AI on your entries.

The 6-layer system ensures that even if one layer were compromised, your data remains protected.

GDPR-compliant · AI Act Art. 50 AI labeling · EU server location (europe-west1)
No data sales. No ads. No investors.
SoulEcho is funded solely by your subscription — that’s the only reason your data is truly safe.
End-to-End Encryption — Data Path
Your entry (plaintext) AES-256 Encryption Local storage
Encrypted blob Firebase Sync Cloud (unreadable)

The key is generated locally on your device and never leaves it. Firestore only stores encrypted data — even with direct database access, no entry is readable.

01 🔑
AES-256 Local Encryption
All journal entries are encrypted with AES-256 before saving. Key: device-specific salt, never transmitted.
Client-Side
02 🔐
Firebase Authentication
Every request is authenticated with a signed Firebase ID token. No token, no access — not even to the API itself.
Server-Side
03 ⚖️
Server-Side Premium Enforcement
Premium status is checked server-side on every AI request. Client-side bypasses are impossible.
Server-Side
04 ⏱️
Rate Limiting
Maximum 20 AI requests per 60 seconds per user. Protects against abuse and ensures stable performance for everyone.
Server-Side
05 🌐
CORS Whitelist
API endpoints accept requests only from soulecho-ai.web.app. All other domains are blocked.
Infrastructure
06 🛡️
Firestore Security Rules
Database rules enforce that users can only read and write their own documents — at the Firestore level, not just in the app.
Infrastructure
✦ Pricing

Transparent & fair

Start for free. Upgrade when you’re ready.

Free
0 €
forever

Writing, impulses, basic analysis — with no time limit.

  • Unlimited journal entries
  • Daily Impulse (1× per day)
  • Mood, sleep & energy tracking
  • Weekly basic report
  • PDF export
  • Top 3 personality dimensions
  • Echo Dialogue — Socratic AI conversation
  • Resonance — weekly deep question
  • All 10 personality dimensions
  • Weekly & monthly deep analysis
  • Relational patterns
Start for free
Annual Plan
79,99 €
per year
Save 33 % — only 6.67 € / month

4 months free. Exclusive annual review included.

  • Everything in Premium
  • Only 6.67 € / month
  • 4 months free compared to monthly
  • Exclusive annual review AI analysis
Choose Annual

All prices are final. Due to small business status under § 19 UStG, no sales tax is charged. · Cancel anytime · In-app purchase

✦ Straight talk & questions

No excuses. Only answers.

No. If you’re looking for colorful stickers and a sweet “Good morning diary,” you’re in the wrong place. I built SoulEcho as a psychological X-ray machine. While other apps affirm you, my system confronts you — in the Socratic dialogue, in the Resonance question, in the weekly analysis. It’s not about writing — it’s about radical insight into your own patterns.
That’s your choice based on the security level. In standard mode your data is encrypted, but I can help you recover access if you lose your password. In Ultra mode your personal key is generated directly on your device — absolute fortress, no one but you can read the texts. If you lose the Ultra key, the data is gone forever. I give you this choice so you decide where your comfort zone ends.
A clear no. I use enterprise APIs from Anthropic and Google. Their contracts guarantee that your data is never used for model training. Your psychological analysis is a snapshot — never fuel for the AI industry.
SoulEcho uses Claude from Anthropic as the primary model, with Gemini 2.5 Flash as fallback for maximum availability. The prompts are specially optimized for emotional depth and self-reflection — this is not a generic chatbot, but a targeted psychological logic built on your own entries.
Because I don’t sell data and I don’t run ads. 9.99 € is the price for complete independence — no investors, no monetization of your psyche. You’re not paying for a text box, but for the complex correlation of sleep, energy, and mind over time. Those who look for “cheap” usually pay with their data.
No. SoulEcho runs directly in the browser — no App Store requirement, no third-party tracking. You can install it as a PWA on your home screen (browser menu → “Add to home screen”), so it feels like a native app. Also available in the Google Play Store.
Don’t worry, I don’t hold your data hostage. Your entries stay fully intact and readable. You can keep writing and reflecting. Only the deep AI analyses, the Socratic dialogue, and the Resonance questions will be disabled. Your story remains yours.
That’s the point. Socrates is not your friend — he is your mirror. When the analysis hits a sore spot and you have to swallow hard, that’s when the real work begins. SoulEcho is a tool for people who are ready to face the truth about themselves — to truly grow, not just feel good.
✦ Ready?

Your first entry
is waiting for you.

No download. No subscription required. Just write and understand.

Open SoulEcho →

You don’t have to find an answer today.