Last updated: 2026-10-01 -- Applies to all jiejuefuyou iOS apps + jiejuefuyou.github.io site + B2B services.
TL;DR: Zero analytics. Zero tracking. No saved app content collected by the developer through the apps. The app developer does not receive your saved app content through analytics or tracking. Private iCloud sync, purchases, system backups and actions you choose to share are explained below and in each app policy.
For the website + B2B consulting services: I store the email you voluntarily send me + your message. That's it.
The developer does not collect app history or saved content through analytics or advertising SDKs. Data handling differs by app; the policies below describe local storage, optional sharing, purchases and cloud features.
Core app content is stored locally. PromptVault can synchronize custom prompt data through the user's private iCloud key-value store; this is available without a Pro purchase. DaysUntil offers optional Pro event sync through private iCloud. These transfers use Apple services and are not sent to a developer sync server. The relevant app policies explain their controls and limits.
StoreKit provides product information, purchases, restoration and entitlement checks, which may require a network connection. Apple handles payment details. Local notifications, photo selection and camera use are described by each app and governed by system permissions.
Content deliberately copied, exported, shared or opened in an external payment service goes to the destination the user selects. Removing an app can remove its local data; system backups and cloud copies are governed by the user's device and account settings.
The site is hosted on GitHub Pages. GitHub may collect standard server logs (IP address, user agent, requested URL). We have no access to these logs and cannot read them.
The site has zero JavaScript analytics. No Google Analytics, no Plausible, no Fathom. We don't know how many visitors you are.
The site does NOT set cookies. Lead capture forms (b2b-quiz / quick-quote / book-call / refer-a-friend / newsletter / prompts / and 12 other pages) POST your email to a webhook endpoint when you submit. This data goes to a lead management pipeline. No other third-party tracking. The pricing-ab-test page uses localStorage to remember which A/B variant you saw. This data lives in your browser only.
If you email me directly (jiejuefuyou@gmail.com or any +alias), I receive your email content + sender address. I store these emails in Gmail. I read every reply.
If you book a paid call ( starter / strategy / retainer), I keep:
I do NOT share your data with any third party. No CRM resale. No mailing list rental. No "would you like to be on a launch list" without explicit opt-in.
You can request deletion of all your data at any time by emailing jiejuefuyou+privacy@gmail.com. I respond within 4 hours JST (Mon-Fri).
If you subscribe to autoappnotes.substack.com, Substack stores your email address per their privacy policy. I can see subscriber count + email open rates aggregate. Individual reading habits are NOT visible to me beyond Substack's standard analytics.
Unsubscribe: every email has a one-click unsubscribe link at the bottom. Or email me and I'll remove you manually.
If you buy a prompt pack via jiejuefuyou.gumroad.com, Gumroad stores your purchase + email address per their privacy policy. I can see your email + product purchased + amount. I use this to send post-buy emails (walkthrough at T+3 days, survey at T+10, optional upsell at T+14). Reply STOP to any of those to opt out.
None of my apps or services are directed at children under 13. None collect data that could identify a child (we collect no data at all from the apps). All apps are rated 4+ which means safe for all ages, but they are not specifically targeted at the children's market.
If I change this policy, the "Last updated" date at the top will reflect that. Material changes will also be announced in the next Substack issue. The full change history is in the public Git history of site/privacy.html on GitHub.
Privacy questions: jiejuefuyou+privacy@gmail.com
General contact: jiejuefuyou@gmail.com
Mailing address: available on request via email (I'm a sole operator in Tokyo, Japan)