Organising AI prompts on your phone: Prompt Vault
Prompt Vault Architecture Note
You wrote the prompt once, then could not find it
Many people in Hong Kong already use generative AI to rewrite email, tidy meeting notes, translate, or draft a post. The slow part is rarely the first sentence. It is finding last week’s version, which may sit in a chat, a notes app or a cloud document, then changing the date, the name, the tone or the format by hand.
Prompt Vault is a practical Hong Kong mobile app for iOS and Android. It keeps the prompts you reuse in one place on your phone. Download it on the App Store and Google Play.
What you can do after you open it
1. Preview, then copy
Tap once to read the full prompt and confirm it is the right one. Double-tap to copy it, with a light haptic cue, then paste it into the AI tool you already use.
2. Leave blanks for what changes
Mark the words that change with braces, such as {language} or {name}. The preview turns those marks into fields and builds the final prompt, so you are not searching through the original text.
3. Look back at recent edits
A prompt grows each time you adjust it. The app keeps the latest 15 versions on the phone, so you can compare what worked and return to an earlier draft.
No account, and the text stays on the phone
Prompt Vault works after install, without creating an account. Prompts stay on that phone. That matters when the text includes work or client details, because you can see where it lives.
- Export your prompts as a file for your own backup, or when you change phones.
- One list, instead of searching across chat and notes.
- Available for iOS and Android on the App Store and Google Play.
Everyday situations it fits
If you reuse the same kinds of instructions each week, a list on your phone is steadier than scrolling through chat history. Typical uses include:
- Rewriting the same email in a more formal or a shorter tone.
- Turning meeting notes into a to-do list.
- Translating a passage into another language with a fixed layout.
- Preparing social posts in more than one length.
Prompt Vault is not a large writing product, and it does not choose an AI tool for you. It shortens three steps: find, fill in, and copy. What the current version includes is described on the products page and the store listing.
How this differs from a general note
A chat thread or a general notebook can hold a prompt, but those places also hold everything else, so search results get mixed together. A dedicated list lets you find the template first, then change only the few words that differ today. For anyone who repeats the same kind of instruction, that is more reliable than writing it again from scratch.
Download Prompt Vault
Available for iOS and Android. See release status and official App Store and Google Play links on the products page.