Scar: Trading Journal
Turn losses into lessons
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Scar turns your trading mistakes into a deck you actually review.
Every trader knows the feeling: you make the same mistake twice. Scar exists to break that loop. Log what went wrong in one plain sentence, the way you'd say it out loud, and Scar shapes it into a clean flashcard: the mistake on the front, the lesson and the rule to follow next time on the back.
Then it does the part discipline usually skips: it brings the lesson back. Scar uses spaced repetition, so a mistake you just made resurfaces fast, and one you've internalized fades into the background. Grade each card by how much it still stings, and the schedule adapts to you.
- One-line capture: write it raw, review the polished card
- Spaced-repetition review tuned for behavior, not trivia
- Tags to surface your patterns: revenge trades, no stop, oversizing
- Private by default, synced across your devices
Scar is not a charting app and not a broker. It is the journal that makes your worst trades teach you something.
Scar Premium is an optional auto-renewable subscription (monthly or annual) that adds cloud sync and AI polish. Payment is charged to your Apple ID at confirmation; it renews automatically unless canceled at least 24 hours before the end of the current period, and you can manage or cancel it in your App Store account settings.
Terms of Use: https://quantsignals.xyz/terms-of-service
Privacy Policy: https://quantsignals.xyz/privacy-policy
Ratings & Reviews
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Zen — a guided session with your own journal.
Your whole journal, read back to you one beat at a time: the patterns across your mistakes named out loud, your own lessons handed back as things you already earned, and a few lines worth repeating to yourself.
• Narrated aloud by the coach, in the best voice your device has
• A quiet ambient bed underneath, which steps back while the coach speaks
• Tap anywhere to pause and sit with a line; tap again to carry on
Find a quiet five minutes.
The developer, QuantSignals, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- QuantSignals, Inc.
- Size
- 45.6 MB
- Category
- Finance
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Scar Premium Monthly $9.99
- Scar Premium Annual $59.99
- Copyright
- © 2026 Heng Zhang