Frequently asked questions
Short answers. Each links to a guide when there's more to say.
Storage and privacy
Where are my entries stored?
In your browser's IndexedDB on the device you use, for diaryfast.com only. Nothing is uploaded when you write. Full explanation.
Can DiaryFast staff read my journal?
No. We never receive entries you don't send to the AI, and encrypted sync copies are AES-GCM ciphertext we can't decrypt.
What is sent when I ask for an AI reply?
The entry (or conversation, or a digest for reports) goes over HTTPS through Cloudflare to our server and on to OpenAI's API. We don't store or log the text; we count requests per day for the free limit.
What does the passphrase lock protect?
Entries and saved reports are encrypted at rest on your device (AES-256-GCM, PBKDF2-SHA-256 310,000 iterations). Settings, including a saved API key, are not covered.
Can I delete everything?
Yes. Settings → Erase this device's journal deletes local data. Settings → Delete account deletes your account and every server copy at once.
Backups, devices and sync
Why is my journal empty in another browser?
Each browser (and each browser profile or private window) has its own storage. Use Export / Import or encrypted sync to move entries. How to back up and sync.
Can my browser delete my journal?
It can if storage runs low, you clear site data, or — in Safari on iPhone and Mac — a site isn't used for a while. Installing DiaryFast to the Home Screen and keeping a backup or sync protects you.
What happens to synced entries if Pro ends?
They stay on the server and you can still download them to a new device. Only uploading new changes needs Pro.
I forgot my sync passphrase.
It can't be recovered. You can start sync over with a new passphrase, which deletes the encrypted server copies; entries on your devices are kept.
AI companions
How many free AI replies do I get?
3 a day per browser. Pro is unlimited (fair-use cap 150 a day). With your own API key there's no DiaryFast limit.
Is the Coach a therapist?
No. It uses common CBT reflection questions and can be wrong. It is not a substitute for professional care. CBT journal templates.
How do I use my own OpenAI or Anthropic key?
Settings → AI companions → Use my own API key. Your browser then calls the provider directly. AI journaling tips.
Pro and billing
What does Pro cost?
$9.99 a month or $59 a year, or a one-time $4.99 24-hour pass. Compare plans.
How do I cancel?
Settings → Manage subscription opens Stripe's portal. Pro stays on until the paid period ends.
Do I lose anything if I go back to free?
No entries are ever locked away. AI limits, AI reports, PDF export and sync uploads return to the free level.
Still stuck? Contact us.