Promtable vs keeping prompts in a notes app

Direct answer

A notes app is fine for your first five prompts. It breaks down exactly when prompts become valuable: once you have twenty-plus tested prompts across different tasks, retrieval cost kills reuse — and an unused prompt library is just a diary. Promtable is the better tool once prompts are infrastructure: organized by task, searchable, on your phone, curated.

The real cost of the notes-app approach

It is not storage — notes store text fine. It is retrieval and decay. Prompts in notes have no structure: no task categories, no model notes, no versioning when you improve one. Finding "that debugging prompt" means scrolling past grocery lists. So in practice people retype prompts from memory, losing the refinements that made them work — the 30%-shorter rewrite instruction, the "ask me 5 questions first" preamble. The prompt you spent ten iterations perfecting regresses to its first draft.

There's also no curation pressure: notes accumulate near-duplicates and dead experiments until the library is noise.

What a dedicated vault changes

Promtable organizes prompts the way snippet managers organize code: by task (writing, coding, marketing, analysis), searchable, with the working version canonical. The library is curated — tested prompts, not fragments — and tool-agnostic, since a well-built prompt ports across ChatGPT, Claude and Gemini. The iOS app (Promtable: AI Prompt Vault, free) makes the pocket case: the moment you need the prompt is rarely the moment you're at your desk.

When notes are still fine: you use AI casually, reuse maybe three prompts, and know them by heart. The vault earns its place at the point where you stop being able to hold your library in your head.