The simplest shape in the category: a model at the end of a text thread
iChatWithGPT is an AI agent you reach on iMessage. To start, tap one link. It replies when asked and does not start conversations.
How iChatWithGPT works
The oldest thing in this directory and the only one that names its models on the front page: GPT-5.6, Claude 4.8, Google Search and Nano Banana, in that order, which makes it the only listing that has told a reader which four vendors are behind the reply. Everything else here either names them in a policy or not at all.
Its selling point has not changed since it launched: no signup, no identifying information, and a contact you save so that "Hey Siri, text GPT" works from a watch or a car. Web research, reminders and image generation, in the thread.
The traction figure recorded here, 23,840 users and 824,242 messages, was published in July 2023 and is still the last one we can find. The counters on the site are live and read zero to anyone whose browser is not running its scripts.
There is no privacy policy at any path, no company and no terms. It is built by one person, an AI product engineer in the Bay Area whose own site is linked from the footer, and that link is the only place any of this is attributable to anybody.
What iChatWithGPT costs, and how you start
| Channels | iMessage |
|---|---|
| How you start | Tap one link |
| Who starts it | Only when asked |
| Is there an app | No app Nothing to install at any point |
| Categories | Personal assistants |
| Can do | Web research,Reminders |
| Connects to | Siri |
| Pricing | Free to try, with a Pro upgrade for unlimited messaging. No figure is published; the site says to ask the assistant. |
| Number type | Not stated on its own pages |
| Contact number | None published |
| Documentation | None linked |
| First message, pre-written | None published |
| Runs on | Not disclosed |
| Browses with | Not disclosed |
| Number carrier | No number to look up |
| Status | Live |
Does iChatWithGPT train on your conversations?
| Trains on your conversations | No policy published |
|---|---|
| Data of people who never signed up | Not applicable |
| What it holds when you connect an account | No policy published |
| If you cancel | No policy published |
| Model providers named | OpenAI, Anthropic, Google |
| Jurisdiction | No policy published |
| Security document | None published |
| Asks before acting | Nothing published |
| Prompt injection | Not mentioned anywhere public |
| Bug bounty | None published |
| Availability | Not stated |
iChatWithGPT’s own pages answer 4 of the 9 questions this site asks of every listing. Not answered: has a privacy policy, says whether it trains on you, says what happens if you cancel, names who carries the messages, says where to report a bug. Fewer than most of its kind: 50th of 56 personal assistants.
Nothing published that a reader can check, looked for on 2026-09-10.
Who makes iChatWithGPT
| Company | Not published |
|---|---|
| Founders | Mo Moustafa |
| Based in | San Francisco Bay Area, US |
| Funding | Not published. Its own site names no company entity, no founders and no round. |
| Investors | Not published |
| Traction | Publicly reported 23,840 users and 824,242 messages exchanged as of July 2023, which is the last figure we could find. |
From iChatWithGPT’s own pages at ichatwithgpt.com, last read 2026-09-10.