Built for ChatGPT
Never lose a greatChatGPT answer again
Chat history remembers conversations. It doesn't remember what mattered.
Best fit for this beta
Truffle is best for people who already use ChatGPT heavily and already try to save useful outputs somewhere.
How it works
Three steps
Get a useful answer
Have a normal conversation in ChatGPT. Ask anything.
Say "Add to Truffle Journal"
One sentence in chat. Truffle saves it with tags and context.
Find it later with your note, tags, and reminders
Search by topic or tag. Add your own notes. Set a reminder.
Result
You see the result immediately in ChatGPT
After you save something, Truffle returns a clean entry card with tags and quick actions — so you know it worked.
Open the full entry in a new tab, or pin it to your inbox in the iOS app to read later.
In Practice
From chat to journal
AI Chat
A real ChatGPT conversation
Truffle Journal
SQL Joins Cheat Sheet
| Join | Keeps | Unmatched rows | Tiny result with Left={1,2,3,4}, Right={2,3,4,5} |
|---|---|---|---|
INNER JOIN | Only matches | Dropped from both sides | 2,3,4 |
LEFT JOIN | All left rows | Right side becomes `NULL` | 1,2,3,4 |
FULL OUTER JOIN | All rows from both sides | Missing side becomes `NULL` | 1,2,3,4,5 |
| Memory hook | Meaning |
|---|---|
| INNER = intersection | Only overlap |
| LEFT = keep left | Always keep left table |
| FULL = keep everything | Keep both tables |
| Example output idea | Result |
|---|---|
| `LEFT JOIN` and left row has no match | right columns = `NULL` |
| `FULL OUTER JOIN` and right row has no match | left columns = `NULL` |
Fast rule: ask, "Which rows am I guaranteed to keep?"
Entry Details
Very concise SQL joins memorization table.
Created
Mar 31, 2026 at 17:26
Updated
Mar 31, 2026 at 19:12
Context Summary
Compact cheat sheet for INNER JOIN, LEFT JOIN, and FULL OUTER JOIN using a tiny set example for memorization.
Caused by Prompt
save it to truffle journal, use table, I want very concise like cheat sheet, so I can often take out and memorize
Model
gpt-54-thinking
A preview of the Truffle Journal app
Turn a dense explanation into a compact cheat sheet you can pull up any time.
Why Truffle Journal
Why chat history isn't enough
- Chat history remembers conversations
- It does not remember what mattered
- Screenshots save too much
- Full copy-paste turns into clutter
- Truffle is for the few answers that deserve a second life
Keep the part worth reusing
Attach why it mattered
Find it by topic, not memory
Bring it back at the right moment
Features
More than a saved note
Save the useful part
Save directly from ChatGPT. When something is worth keeping, just say "add to Truffle Journal."
Add your own meaning
A markdown editor for your own notes, context, and reactions — attached to what you saved.
Find it when you only remember the idea
Search by topic or tag. You don't need to remember the exact words — just the idea.
Turn useful answers into reminders and checklists
Set reminders on any entry. Turn plans and lists into interactive checklists to act on later.
Why I built this
Why I built this
I use ChatGPT heavily and kept pasting useful answers into notes. It looked organized when I saved it, but later most of it felt like noise. What I actually wanted back was usually one reusable part — a checklist, framework, cheat sheet, or decision note.
Privacy
Kept close
What matters here should feel safe to keep. Truffle Journal only saves, lists, or searches your journal when you ask it to. Your data is encrypted in transit and at rest, with access scoped to your account.
Start Here
Setup takes one-time effort — then it disappears
Install the iPhone app
Download Truffle Journal via TestFlight — Apple's platform for beta apps.
Connect ChatGPT once
A one-time setup inside the app. Takes about 2–3 minutes.
Save your first useful answer
Say "Add to Truffle Journal" in any ChatGPT chat.
Need help? We'll walk you through setup.
When found, make a note of.
— Captain Cuttle
Contact
Say Hello
Questions, ideas, feedback, or quiet curiosity are all welcome. Reach us anytime.