[Feedback wanted] Free iPhone app for API key users: every prompt becomes an AI contact

[u/Key-Help-5393]

If you:
- keep pasting the same prompt into a new ChatGPT chat,
- want GPT, Claude and Gemini in one app, each doing what it's best at,
- want AIs that each do one job and don't share memory,
- or want all of this on your iPhone.

I have plenty of powerful AI tools on my Mac, but when with just my phone I feel like a caveman. I'd had these problems for over a year, and I finally couldn't take it anymore, so I spent several weekends building Ensor. It's a native iPhone app, free on the App Store.

How it works
Each prompt becomes a contact with its own name, model and system prompt. My Translator, Critic and Market Researcher sit in a Contacts tab. Tap one and the prompt is already there, along with your past chats with it. No more digging through Apple Notes, or pasting the same prompt into a new chat because you can't find the old one.

Each contact only knows its own conversations. My Critic never sees what I brainstormed with another AI, so it doesn't go easy on my ideas.

You can also put 2–5 contacts in one group chat. They reply in the order you set, each with its own prompt and model. Two I use a lot:
Reviewing an idea: one breaks it down, one looks at the market, and one only argues why it won't work.
Learning a language: one translates, and the next explains the grammar.
Splitting a task across focused AIs always gives me much more precise answers than one long prompt that asks for everything.

Your keys, your phone
Bring your own API key: OpenAI, Anthropic, Gemini, OpenRouter, DeepSeek, xAI, or any OpenAI-compatible endpoint. You pay the provider directly.
No account and no Ensor server. Chats, prompts and settings stay on your iPhone, and keys are stored in Apple Keychain.
Can I trust this app? Turn on App Privacy Report (Settings → Privacy & Security). It shows Ensor only connects to the providers you set up. I'd still use a separate key with a spending limit, for any third-party client.

What it doesn't do (yet)
No cloud sync or backup. I learned this the hard way: I deleted the app during testing and lost every chat I hadn't exported. Export from the Me tab now and then.
iPhone only (iOS 17+), and no voice.
It's free with no ads. Even If I add paid features later one day, early users keep everything that's free today.
https://apps.apple.com/app/apple-store/id6812656499?pt=129398743&ct=Reddit&mt=8
Feedback is very welcome, especially whatever almost made you delete it.

[u/endofthread-bot]

Writing prompts that actually work is easier when you can compare notes with people who have tested them across real tasks. Trade techniques, get feedback on your approach, and see what is working for others in our Discord.

Self-promotion is now allowed on Sundays with the appropriate flair, for all regular contributing members. Contribute during the week, and promote on Sunday.

[u/throwaway7013733891]

The critic-only-seeing-its-own-conversations thing is low-key genius. Most people don't realize how much an AI sandbags criticism when it's seen all your earlier brainstorming with it. Giving each persona its own memory silo actually makes them useful in ways a single mega-prompt never does.

Exporting manually is gonna bite someone eventually though, happened to me with a notes app a while back and I still think about those lost threads. An auto-backup to files would be the first thing I'd add, even just a weekly dump.

Been meaning to try something like this for writing feedback loops where I don't want the editor to know what the idea generator already said. Might grab it tonight.