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Frequently asked questions (FAQ)
Have a look here before contacting support. Most questions are answered on this page.
about 5 min Updated May 11, 2026
Billing & subscription
- What is the difference between the Pro subscription and the one-time payment? The Pro subscription is ₩3,900 a month; the one-time payment is a single ₩79,000 charge that keeps working with no renewal. The one-time payment does not include AI features — add the 'AI add-on' for ₩2,000 a month if you need them.
- How do I cancel the Pro subscription? Settings → Billing → 'Cancel subscription'. After canceling you keep Pro until the end of the period you already paid for.
- Do you offer refunds? The Pro subscription has no pro-rated refund (when you cancel, you keep it until the period ends). The one-time payment is refunded in full if all three conditions hold: within 30 days, zero AI calls, and zero attachments uploaded.
- Receipts and tax invoices? Issued automatically after payment. Download them from Settings → Billing → the Receipt tab.
- When does a plan change take effect? An upgrade applies immediately and the pro-rated difference is charged. A downgrade takes effect on your next billing date.
Account & login
- I forgot my password. Use 'Reset password' at the bottom of the login page — a reset link is sent to your registered email address.
- I signed up with Google. Can I add an email password too? Yes. Add one under Settings → Account → 'Set email password'. After that you can log in either way.
- How do I change my email address? Settings → Account → change email. A verification email goes to the new address; click it and the change applies.
- Can I merge two accounts? Not supported today. Contact support@promstack.com and we can migrate manually (3 to 5 business days).
- I keep seeing 'Your session has expired'. The model is a 30-second cache on top of a 30-day session. Cookie-blocking modes and private windows can cut it short, so a normal window is recommended.
Sync & offline
- Is what I write offline safe? Yes. It is saved to IndexedDB automatically and syncs as soon as the network is back. If you edit the same page on several devices, an If-Match ETag raises a conflict dialog.
- Push is not arriving on mobile. The App Store (iOS) and Google Play (Android) apps register an APNs/FCM token as soon as you log in — that is the most reliable route. With a PWA, iOS needs Safari on 16.4 or later, and on Android you have to install through Chrome and allow the notification permission. Check Settings → Notifications → push token.
- The desktop app and the web show different data. Usually a stale cache — press ⌘R in the desktop app, or refresh the web page. If they still differ, log out and log back in.
AI & automation
- Where do I check how many AI calls I have used? Settings → Billing → the 'AI usage' card. It shows the current cycle, the next renewal date, and the remaining hourly and per-minute limits.
- The AI answered in a different language than I expected. It detects the language of the page or task body and answers in that language. To pin it down, write the input in the language you want, or name the language in the prompt.
- How do I issue an MCP token? Settings → MCP & API tokens → 'Issue new PAT'. Use it from Claude Desktop, Cursor, or VS Code. See the mcp-integration guide.
- Where do I find the webhook secret? Project → Settings → Webhooks → 'Show secret' on each endpoint. It is what you verify the HMAC-SHA256 signature with.
Import & export
- Can I import straight from Notion? There is no Notion-specific parser yet. Three ways around it — ① to move pages one at a time, export from Notion as 'Markdown' and run each
.mdfile through the Wiki page menu → 'Import .md' ② to move a whole tree, use the desktop app's folder sync (vault-sync) to sync Notion's markdown folder with your Wiki in both directions ③ if you have written your own conversion script, use the desktop app's bulk Wiki JSON import. - Can I use Notion's CSV or HTML export as well? A CSV from a Notion database can be imported row by row through Tabple's database CSV import (
/api/databases/[id]/records/import). A bundle of Notion HTML can be uploaded as-is as long as its folder structure matches the Apple Notes card (.html plus images inside a .zip). - Can I import a PDF as a Wiki page? Converting a PDF into page content is not supported. You can upload the PDF itself as an attachment on a Wiki page (
/fileor drag and drop) and read it in the inline viewer. If you need the text, convert it first with an outside tool (a PDF→Markdown converter, for example) and then use the Wiki page menu → 'Import .md'. - Are there import limits? Up to 10,000 notes at a time, 100MB per ENEX file, and Apple Notes ZIP folders up to 4 levels deep. Split anything larger.
- I want to undo an import. There is no bulk delete, and deleting a page is permanent — it cannot be undone. Test with a small sample before you move your real data.
Team collaboration
- My teammate never got the invite. Check the spam folder. If it did not arrive, ask the owner for the invite URL directly through the 'Share link' option. See the invite-team guide.
- What can each role do? See the permissions-roles guide — it lays out the owner/member/viewer matrix.
- Can I track who changed what? Every page, task, and database record records created_at, updated_at, and last_modified_by automatically. Wiki pages snapshot themselves on a 15-minute / 300-character / 50-version policy, so you can restore a point in time from the 'History' panel.
- Is there a limit on project members? Free 4 members / Pro 20 members / one-time payment 20 members. Contact us for anything larger.
If none of this helps
- Report a bug — Settings → Help → 'Bug report' (or support@promstack.com). A screenshot plus your environment (browser, OS) helps a lot.
- Request a feature — same path → 'Feature request'. It feeds into voting and prioritization.
- Security issues — security@promstack.com (routed separately). We reply within 24 hours and follow a responsible disclosure policy.
- Status page — status.promstack.com shows live status for the SSE, DB, R2, and push infrastructure.
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