Build sign-up login 2FA payment OTP flows
with any stack

Go faster from idea to execution with pre-built UX components, custom logic, integrations and streamline user onboarding with your current API or identity provider.

Book a demo Try it free

What can Arengu do for you?

Use ready-made templates to build complex use cases in minutes. Or build yours from scratch for a completely custom logic for your flow.

User registration flows

Onboard users to your platform building custom registration flows.

SMS & Email OTP verification

Prevent fraudulent sign-ups by verifying users emails and phone numbers.

Subscription payments

Collect one-off or recurrent payments for subscription businesses.

Passwordless flows

Reduce friction for your users removing passwords from your flows.

Multi-factor authentication

Protect your users from account takeovers building custom MFA flows.

Approval forms

Set up automated or manual approval workflows for new users.

Book a demo Try it free

What our clients say

"With Arengu, we are able to easily experiment and test our sign up flow, by separating it from our core platform. At the same time, the flow has become more robust when it comes to eliminate errors."

Peter Hanekamp

CEO, Taiga

"Arengu is a key part of our acquisition strategy to build personalized sign-up pages at scale. They are a flexible and easy-to-use solution to achieve our business goals."

Tahís Gómez

Acquisition Marketing, Privalia

"Thanks to Arengu we've been able to improve our customer registration experience, increasing the conversion rates by 30 %. All in a quick and easy way."

Rafa Rovira

Digital Marketing Manager, Khama

"Arengu is a quick, trustworthy and flexible solution that allowed us to launch faster in new international markets and keep our focus in our core platform."

Borja Maceira

CTO, Opositatest

For makers and developers

Use ready-made templates to build complex use cases in minutes. Or build yours from scratch for a completely custom logic for your flow.

Developers

Save time and resources

Free up valuable development resources building non-core features and let us deal with technical complexity.

Reduce up to 80% of development time.
Eliminate maintenance costs.
Easy to integrate with your stack.

Marketers

Collect users, not leads

Stop wasting money collecting leads that don't convert and start acquiring new users for your business.

Increase your user sign-ups.
Block fake sign-ups or spam.
Reduce ad costs with dedicated pages.

Try a sign-up flow demo

This working demo has an email OTP, custom logic to qualify users and payment fields.

✉️ Email details

This first step verifies if the email domain has a valid MX record, if it's valid, it checks if it's a free email provider (eg. @gmail.com) or a company domain. If the user provides a free email provider, it continues to a second step to ask for an email OTP verification flow, otherwise, it jumps to the last step.

Try this form using a non existing email domain, a free email provider (eg. @gmail.com) or a company email domain.

Powerful alone. Better together.

All-in-one solution to build, automate and scale your user flows.

Forms

Drag & drop form builder

Easily create your custom form with our drag & drop builder. Add multiple steps, require payment details, add custom server-side logic... without writing a single line of code.

Forms with Flows
Approval workflows
Multi-step forms fields
Payment fields

Learn about Forms

Flows

Visual flow editor

Easily build server-side logic that can be used in your forms or as a standalone product. Create custom validations, integrate with other APIs or automate tasks without coding.

Validation flows
Eliminate maintenance costs.
Easy to integrate with your stack.

Learn about Flows

Out of the box integrations

Send your data back and forth between Arengu and your favourite apps.

Auth0

Stripe

Okta

Firebase

Magento

PrestaShop

Shopify

WordPress

HubSpot

JSON web token

Airtable

Pipedrive

ActiveCampaign

HTTP Request

Slack

Mailjet

SendGrid

Clearbit

Twilio

Zapier

See all the integrations

Made for developers

Embed it everywhere

Perfect fit with every frontend framework, thanks to our JS SDK, just with a simple line of code. Including popular CMS platforms, and landing page builders.

Explore the docs

<script async src="https://sdk.arengu.com/forms.js"></script>
<div data-arengu-form-id="YOUR_FORM_ID"></div>

import React from "react"
import { ArenguForm } from "react-arengu-forms"
‍
const IndexPage = () => (
  <div>
    <ArenguForm id="YOUR_FORM_ID" />
  </div>
)

export default IndexPage

import React from "react"
import { ArenguForm } from "gatsby-plugin-arengu-forms"

const IndexPage = () => (
  <div>
    <ArenguForm id="YOUR_FORM_ID" />
  </div>
)

export default IndexPage

[arengu-form id="YOUR_FORM_ID"]

Perfect fit with every frontend framework, thanks to our JS SDK, just with a simple line of code. Including popular CMS platforms, and landing page builders.

Explore our plugins

Frequently asked questions

Getting started with Arengu

Arengu allows you to build all your user flows connected to your current stack, and avoids coding all the UI, complex integrations, validations or logic from scratch. Try it for free and start building faster and scaling your application needs as they grow.

Book a demo Try it free

Build sign-up login 2FA payment OTP flows
with any stack

What can Arengu do for you?

User registration flows

SMS & Email OTP verification

Subscription payments

Passwordless flows

Multi-factor authentication

Approval forms

What our clients say