1Flow
Delighted
Formbricks
Survicate
Refiner
Userflow
Qualaroo
Flows.sh
meetergo
Calendly
Chili Piper
Doodle
Cal.com
TidyCal
SimplyBook.me
Acuity Scheduling
Backed by Y Combinator, 1Flow is the #1 in-product survey and messaging platform for product and user research teams at digital product companies. With robust user segmentation, you can target any user based on events and user attributes to engage them in-app and ask specific questions to collect feedback. Understand why users churn / don't convert, and where your product might be missing the mark, so you can build better products faster and grow your user base.
1Flow seamlessly integrates with Mixpanel, Amplitude, Segment and data warehouses, allowing you to send user data as analytics events and attributes, as well as target users based on dynamic cohorts.
Once installed into your app, 1Flow works with over-the-air cloud dashboard control with no need to update your app or make code changes. This gives you the ultimate power of launching the perfect user flow exactly when and where you want it, without taking up dev resources.
1Flow offers enterprise-level data security by being SOC 2 Type 2 complaint and GDPR compliant, while offering startup-friendly pricing and 14-day unlimited use free trial for anyone. Visit 1Flow AI website to learn more and get started for free today.
meetergo is a German business platform built around GDPR-compliant scheduling. All data is hosted in Germany, and a data processing agreement (AVV / DPA) is available for every account, so you can replace a US scheduling stack without a new legal review.
Scheduling Personal and team booking pages, round-robin and collective bookings, meeting polls, calendar sync with Google, Microsoft 365 and CalDAV, availability rules, automated workflows, plus reminders and follow-ups.
Video and AI notes meetergo Connect runs the call itself, with recordings and breakout rooms. The AI notetaker produces recaps and transcripts from Connect, Google Meet and Teams.
CRM and lead routing Qualify inbound leads with custom forms, route them to the right person, and manage deals in a built-in CRM that syncs with HubSpot and Pipedrive.
16 apps, one subscription Beyond scheduling: e-signatures, invoicing, client portals, WhatsApp booking, and payments collected at the moment of booking. Mira, the built-in AI, works across every app and is included on all plans, including Free.
For developers A REST API, webhooks and an MCP server are included on every plan, so agents and internal tools can read availability and create bookings directly.
Pricing Free forever with unlimited users. Light from EUR 9.90 per user / month, Suite from EUR 29.90 per user / month, billed yearly. Suite replaces a Calendly plus Zoom plus Otter stack for less than the three combined.
Who it is for Freelancers, agencies, law firms, medical practices and sales teams across Germany, Austria and Switzerland, plus any EU company that needs to keep scheduling and customer data outside US cloud jurisdiction.
1Flow
meetergo1Flow's answer
1Flow is founded by Stanford Product Design student and serial entrepreneur.
meetergo's answer:
meetergo GmbH was founded in 2021 by Dominik Rapacki and Richard Gödel and is based in Monheim am Rhein, North Rhine-Westphalia (HRB 104381, Amtsgericht Düsseldorf).
It started as a straightforward answer to a problem German businesses kept running into: the standard scheduling tools were excellent products with an unusable legal position for anyone operating under GDPR. A booking page collects names, email addresses, phone numbers and often health or legal context, and for many German firms that data could not sit with a US processor.
The product grew from there. Once bookings were compliant, the calls, recordings, notes and customer records had the same problem, so those moved onto the same German infrastructure rather than being handed to a second foreign vendor. That is how a scheduling tool became a platform of sixteen apps sharing one subscription and one compliance posture.
1Flow's answer
1Flow is best suited for consumer mobile apps, web-based SaaS products, e-commerce brands, and marketing websites. Product managers, user researchers, UX designers and customer success managers all love using 1Flow.
meetergo's answer:
Small and mid-sized businesses in the DACH region, typically between one and fifty employees. The largest group is practitioners rather than dedicated revenue teams: freelancers and consultants, agencies, law firms and notaries, medical and therapy practices, and small B2B sales teams.
The common thread is that someone in the business is personally accountable for GDPR compliance and cannot defend a US scheduling tool to a client, a works council or a data protection officer. Customers usually arrive because of that constraint and stay because the scheduling, video, notes and CRM consolidate tools they were otherwise paying for separately.
Outside DACH, the same pattern applies to EU companies with public-sector, healthcare or regulated clients who need scheduling data to stay under EU jurisdiction.
1Flow's answer
1Flow offers a robust user segmentation engine using a combination of user's events and attributes, and allow you to create AND/OR logic and logic groups to target precisely the right users you want to research - without needing development resources or code changes at all!
1Flow also has the absolute best modern, clean design that is fully customizable (from fonts to text color, background color and brand color) to compliment your branding and appear native to your brand. The built-in transition animations are delightful to your users and unmatched in any other similar products out there.
1Flow AI (which is powered by ChatGPT and GPT-4 technology) allows anyone to create a customized user survey specific to your business needs and matches your tone of voice instantly. 1Flow also offers a rich collection of goal-based templates to help you craft the perfect user research studies that uncover actionable user insights and unlock growth.
meetergo's answer:
Most GDPR-compliant scheduling tools stop at the booking page. meetergo keeps the entire meeting lifecycle inside German infrastructure: the booking, the video call, the recording and AI recap, the CRM record, the invoice and the e-signature. That means a European company can drop a Calendly plus Zoom plus Otter stack without introducing a second US processor at exactly the point where the real customer conversation happens.
Two other things are unusual. Every plan, including the free one, ships a REST API, webhooks and an MCP server, so agents and internal tools can read availability and create bookings directly rather than scraping a booking page. And the free tier has no user cap, which makes it usable by a whole small team rather than one person.
1Flow's answer
1Flow has built the best in-app survey software in 2023 and beyond. They offer a 14-day unlimited use free trial so you can start a free trial by signing up and take a look yourself. It's the best tool in its class with the most affordable pricing available for its rich feature sets. If you have any questions you can contact 1Flow's support anytime and the founder of 1Flow is super responsive and will personally ensure you're successful in your search.
meetergo's answer:
Choose meetergo when data residency is a hard constraint rather than a preference. It is operated by meetergo GmbH in Monheim am Rhein, data is hosted in Germany, and an AVV / DPA is available on every account including the free one, so procurement and DPO review tend to be short.
It is a better fit than Calendly or SavvyCal if you also need the call, the notes and the CRM inside the same compliant stack instead of as three separate US vendors. It is a better fit than Cal.com if you want that without self-hosting and maintaining it yourself. It is a better fit than Acuity, Setmore or SimplyBook.me if your use case is B2B meetings and inbound lead routing rather than salon or service-appointment booking.
It is not the right choice if you specifically want an open-source, self-hosted deployment. Cal.com is the stronger option there, and saying so is more useful than wasting your evaluation time.
1Flow's answer
1Flow's answer
Booked the call. Joined the video room. Got the transcript. Sent the proposal. Collected the signature.
All in one place!! The interface still has a few corners that could be smoother, but the overall workflow is brilliant.
Delighted - The fastest and easiest way to gather actionable feedback from your customers
Calendly - Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.
Formbricks - Open Source Survey and Experience Management Platform
Chili Piper - Chili Piper is an intelligent calendar for Sales teams, to book their own meetings or set appointments for other teams.
Survicate - Collect feedback on your website and find out more about your visitors.
Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.