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Meet Aventide

AI client management for every business you run. Say it. Approve it. Aventide runs it.

Sidekick drafts the work, and you approve it

Each business kept separate, and your data stays yours

Built for people running more than one business

Try Aventide free for 14 days

No card needed. Every feature, with up to 3 businesses during the trial. Then Starter is $39 a month with unlimited businesses and team members.

Aventide: Sidekick drafts a proposal for Riverbend Cafe and waits for approval

Your clients, and the business around them.

Booking, proposals, contracts, invoices and client portals for your clients. Marketing, money, calendar and email for the business around them. One login for every business you run.

01

Clients

Every client in one place, each with their own branded portal.

02

Proposals & contracts

Proposals clients accept online and contracts they sign, with your countersignature.

03

Calendar

Booking pages that can take full payment or a deposit when the client books.

04

Inbox

Client email from your Gmail in one inbox, with replies Sidekick drafts for your approval.

05

Marketing

Plan and schedule posts to your social channels, for each business.

06

Money

Invoices and deposits paid into your own Stripe account. Aventide takes 0%.

Built by Second Spring Design

How we built it

Aventide is where our manifesto turns into product decisions. See everything it does at aventide.ai.

Anything Sidekick drafts for a client waits for your approval.

Sidekick works from your saved business details, not generic answers.

It remembers how you like to work, and asks before saving a fact.

Each business stays separate, and you can export your data.

We publish the energy and water behind our AI.

A direct line to the founders.

Second Spring Design

Human-scale AI for independent businesses. Build Your Own Way

© 2026 Second Spring Design Inc.