Add a number to any iMessage or SMS group and it participates like a member
Sidekicks is an AI agent you reach on iMessage and SMS. To start, add a number to a group. It messages you first rather than waiting to be asked.
How Sidekicks works
Sidekicks is a set of personas rather than one assistant: Otto for productivity, Dash for food and sleep, and others for wellness and company, chosen by texting the same number. It works in group threads as well as one to one.
It is one of only three listings here that answer the training question with a plain yes. Its terms list training and refining AI systems among the uses, and the licence clause says you grant the company the right to process, analyse and improve the service using what you submit. That is unusual mainly for being stated: most of this directory either says no, says nothing, or answers for its model vendor rather than for itself.
Two operational details. Pro is $19.99 a month with a $200 tier above it, and the way you upgrade is by texting the assistant, which makes it the only listing here where the checkout is a message. And the terms are governed by Delaware law and apply, in their own words, to participants in group conversations, which is the closest anything in this category comes to addressing the people who never signed up without actually saying what those people can ask for.
What Sidekicks costs, and how you start
| Channels | iMessageSMS |
|---|---|
| How you start | Add a number to a group |
| Who starts it | Messages you first |
| Is there an app | No app Nothing to install at any point |
| Categories | Group agents |
| Can do | Group threads,Reminders |
| Connects to | None named publicly |
| Pricing | $19.99 a month for Pro, with a $200 a month tier above it. Upgrading is done by texting the assistant rather than through a checkout page. |
| Number type | Wireless |
| Contact number | +1 628 213 4346 |
| Documentation | None linked |
| First message, pre-written | “Hello 👋”Composed by the product, sent by you. See why that matters. |
| Runs on | Not disclosed |
| Browses with | Not disclosed |
| Number carrier | Verizon Wireless (Cellco Partnership) block holder, before number portability |
| Status | Live |
Does Sidekicks train on your conversations?
| Trains on your conversations | States it does“Users grant the Company a license to process, analyze, and improve the Service using submitted content” |
|---|---|
| Data of people who never signed up | Not addressed |
| What it holds when you connect an account | Not stated in the policy |
| If you cancel | No period stated. Deletion is on request, subject to applicable laws and retention requirements. |
| Model providers named | None named |
| Jurisdiction | Delaware, US, named as the governing law. It states it does not sell or share personal information under the CCPA, including for anyone under 16. |
| Security document | None published |
| Asks before acting | Nothing published |
| Prompt injection | Not mentioned anywhere public |
| Bug bounty | None published |
| Availability | Not stated |
Sidekicks’s own pages answer 6 of the 9 questions this site asks of every listing. Not answered: names who carries the messages, names its model providers, says where to report a bug. About the middle of its kind: 7th of 13 group agents.
Quoted verbatim from the published policy on 2026-09-10, and what a document says is not the same as its legal effect.
Who makes Sidekicks
| Company | Sidekicks LLC |
|---|---|
| Founders | Not published |
| Based in | Not published |
| Funding | Not published. Its own site names no company, no founders and no round: it publishes a phone number and nothing else about who is behind it. |
| Investors | Not published |
| Traction | States 10,000+ people texting it. |
From Sidekicks’s own pages at sidekicks.chat, last read 2026-09-10.