Cachly — User Guide

Cachly Intelligence

Cachly Intelligence helps you write better logs faster and can summarize a cache’s logs and description into a quick read — in any language — using on-device or cloud AI. You stay in control: it drafts, you edit and post.

What It Does

When you’re logging a find, Cachly Intelligence can draft a log for you — turning a few notes (or just the cache’s context) into a friendly, well-written log you then tweak and submit.

Cachly Intelligence is a Cachly Pro feature and is on by default — you can turn it off anytime in Settings › Cachly Pro.

Setting It Up

Cachly Intelligence settings: the enable toggle, AI Provider, and the three editable prompts.
Cachly Intelligence settings — the enable toggle, AI Provider, and the three editable prompts.

Cachly Intelligence is on by default, and everything lives at the top of Settings › Cachly Pro, in the Cachly Intelligence section:

  1. Enable Cachly Intelligence is already switched on — turn it off here if you’d rather not see the AI features.
  2. Tap AI Provider and choose who does the thinking. Apple Intelligence works immediately, entirely on-device. For Claude, ChatGPT, Gemini or Mistral, tap the provider to add your own API key first — until then the row shows API key not set.
  3. Log Language sets the language Cachly Intelligence writes log text in. It follows your device language until you change it, and it’s the same choice the globe button makes when writing a log. A Reset to Device Language button at the bottom of the screen clears your choice (falling back to English if your device language isn’t supported).
  4. Optionally open the three prompt rows below (Log Summary, Description Summary, Log Writing) and tailor them to your taste — each is fully editable.

While enabled, a sparkle button appears in the places Cachly Intelligence can help: a cache’s description, its logs list, and the log message editor.

Apple Intelligence is only available on the iPhone 15 Pro and newer devices (and requires iOS 26). On older iPhones, choose Claude, ChatGPT, Gemini or Mistral with your own API key instead.

AI Summaries

Beyond drafting logs, Cachly Intelligence can summarize for you. On a cache’s Logs screen and on its description, tap the sparkle button (bottom right): a Cachly Intelligence sheet slides up with a concise summary — how the cache has been doing, common tips from finders, or the gist of a long pirate-themed backstory — without reading a wall of text.

A one-tap summary of a cache's recent logs, generated on-device.
A one-tap summary of a cache’s recent logs, generated on-device.
The same sparkle button on a description condenses a long listing into a quick read.
The same sparkle button on a description condenses a long listing into a quick read.
Summaries translate, too. Caching abroad? Summarize a cache’s German (or French, Japanese…) logs and description and the summary comes back in English — or whatever your device language is. No more pasting logs into a translator to figure out if a cache is findable.

In CarPlay, Cachly Intelligence goes hands-free: it can summarize a cache’s logs and description by voice, reading the summary aloud so you get the gist while driving.

How Much the AI Reads

Summaries work from a deliberate slice of the cache, not everything ever written about it:

  • Log summaries read the logs already loaded on the cache’s Logs screen, newest first, up to 20 logs. Empty and low-effort logs (a bare “TFTC”) are skipped so they don’t use up the AI’s reading budget, and each log goes in with its date, log type, and the author’s name and find count — that’s how the summary can weigh a 10,000-find veteran’s DNF differently from a newcomer’s.
  • Description summaries read the listing text with the formatting stripped, up to the first 5,000 characters.

How much of each log fits depends on where the AI runs. On-device Apple Intelligence has a small context window (roughly 4,000 tokens, shared between what it reads and what it writes), so Cachly keeps each log to its first 600 characters and about 8,000 characters of log text in total. Cloud providers (Claude, ChatGPT, Gemini, Mistral) have far larger context windows and get a much bigger budget:

Apple Intelligence (on-device)Cloud providers
Logs consideredUp to 20, newest firstUp to 20, newest first
Each logFirst 600 charactersFirst 2,000 characters
Total log text≈8,000 characters≈60,000 characters
DescriptionFirst 5,000 charactersFirst 5,000 characters

If the budget fills before 20 logs are in, Cachly stops there — newer logs always win. The same limits apply to voice summaries in CarPlay. Replies themselves are kept short by design: summaries aim for about three sentences.

Choosing a Model

The AI Provider picker with Mistral selected, showing its API Key and Model rows below the provider list.
The AI Provider picker — on-device Apple Intelligence, or Claude, ChatGPT, Gemini and Mistral with your own API key. The selected cloud provider gets its own API Key and Model rows.

Cachly supports multiple AI providers, selectable under Settings › Cachly Pro › AI Provider:

ProviderNotesAPI key from
Apple IntelligenceOn-device AI — private and offline-capable. Requires iOS 26 and an iPhone 15 Pro or newer.No key needed
Claude (Anthropic)Cloud model via the Claude API.console.anthropic.com
ChatGPT (OpenAI)Cloud model via the OpenAI API.platform.openai.com
Google GeminiCloud model via Google.aistudio.google.com
MistralCloud model via the Mistral API.console.mistral.ai

Choosing a cloud provider adds a second section below the list, headed with that provider’s name and holding two rows: API Key, where you paste the key from the console above, and Model. The model list is fetched live from the provider, so new releases appear without waiting for a Cachly update — leave it on Default and Cachly uses a sensible current model for you.

Cloud providers (Claude, ChatGPT, Gemini, Mistral) send your prompt to that service, and you will need to use your own API key or account. Apple Intelligence runs on-device where supported. Choose the option that matches your privacy preference.

Writing Prompts & the Prompt Editor

Every Cachly Intelligence feature is driven by a prompt you can see and change. Settings › Cachly Pro has three, and all three are fully user-editable:

  • Log Summary Prompt — shapes how a cache’s logs are summarized; the logs are appended to the end of your prompt.
  • Description Summary Prompt — shapes description summaries the same way.
  • Log Writing Prompt — shapes generated logs; the cache’s info and your notes are appended to it.

Edit them to match your voice — always mention the trail, keep it short, write in your language — and the AI’s output follows.

Writing a Log with AI

In the log message editor, tap the sparkle button and describe what you want to say (“Found it quickly, thank the owner, mention the nice park setting”). The suggestion tags below the field add common phrases with a tap, and the globe button beside them picks the language the log is written in, with the current language code shown beneath it. It starts on your device language, and your choice is remembered for the next log, so a German speaker caching in the UK can switch to English once and every log on the trip follows. The same choice lives in Settings › Cachly Pro › Log Language, where Reset to Device Language puts it back. Tap Generate and a Preview of the drafted log appears — Insert it into your log, or Try Again for a different draft. Nothing is added until you choose Insert.

Log writing: describe what you want to say.
Log writing: describe what you want to say…
Cachly Intelligence drafts the log; Insert it, or Try Again.
…and Cachly Intelligence drafts the log — Insert it, or Try Again.
The same request written in German after choosing German with the globe language button.
Pick another language with the globe button and the same request comes back in it — here, German.

Privacy & Control

Generated text is always a draft: nothing is posted until you review and submit it. You decide which provider to use, and you can edit or discard any suggestion.

Cachly User Guide. Cachly is a product of Zed Said Studio. Geocaching is a trademark of Groundspeak, Inc.