FlutterFlow Review: AI App Builder, Pricing & My Test Results

FlutterFlow is a visual builder for apps made with Flutter, Google's toolkit for apps that run on phones and the web. You drag widgets onto a canvas and set actions by hand. A newer AI box on its Projects page, called Instant Generation, makes a first set of screens from a description.

The plans are Free, Basic at $39 a month, Growth at $80 and Business at $150. Free allows 5 AI requests for life, and Basic allows 50 a month. I paid for Basic, because it is the cheapest plan that downloads the code and connects a custom domain.

Every number here comes from my own tests and my own monitors. Nothing is estimated or copied, FlutterFlow never saw the review first, and every app builder gets the same brief, checks and attacks. This review is based on six graded tests. I left four out. Payments and emails need your own keys, sign-in and the database need a Firebase or Supabase backend that only you can connect, and the web editor has no way to run my twelve changes as prompts.

FlutterFlow has a Free plan, then $39 Basic, $80 Growth and $150 Business, each with more AI requests. Prices read on 26 October 2026, monthly view. Billed yearly they are lower. My invoice took 20% off the list price as a regional discount.

FlutterFlow pricing page in the monthly view: Free at $0, Basic at $39, Growth at $80 and Business at $150 a month

Here is the number you will ask about first. In total I paid $33.97: one month of Basic, with a regional discount and tax on the invoice. The AI requests came with the plan. I made two.

FlutterFlow billing page showing the current subscription, Basic Plan $33.97 per month, with Basic Plan $39.00, a Regional 20% discount of minus $7.80, Tax $2.77 and Total $33.97

The part I could not price is the backend. A working version of this app needs Firebase or Supabase for sign-in and data, which you set up and which have their own charges. I did not connect either.

I pasted the brief into the Instant Generation box and the first screens were in the editor about two minutes later. The app was live 12 minutes after I started.

FlutterFlow editor showing the generated Class Timetable page of the Fitting Room app, with Reformer Basics and a Book Class button, the widget panel on the left and the properties panel on the right

The gap between two and 12 minutes was two fixes by hand. The AI left the web platform switched off and left one Navigate action with no page, and Publish refuses to run while the project has an error.

A 1, because the app was live but never got near the passing line.

Not really. 2 of 24 checks passed. Six more, the payments and the two emails, need keys that are mine to supply, so I left them out. The timetable shows the three classes with the right days, times and instructors, and that is where it stops.

Book Class does nothing. Cancel Booking, Mark Present, Add Class, the edit and delete icons, Export all as CSV and Send Message do nothing either, and the day tabs do not switch. The classes are not even counted: every class says 8, 12 or 6 spots left, whatever happens.

FlutterFlow test app timetable with Reformer Basics on Monday June 10 at 7:00 AM for 50 minutes with Lena Park and 8 spots left, a Book Class button, and a blank white area under the content

The AI also filled the screens with sample data I never asked for: four members with names, 142 bookings, 38 this month, 84% capacity and three inquiries from example.com addresses. The brief said not to invent anything.

FlutterFlow test app Booking Export screen with an Export all as CSV button, Total Bookings 142, This Month 38 and recent activity for Sarah Jenkins and Michael Chen

I could not run the twelve changes, so this test is not graded. FlutterFlow's web editor has no chat that changes an app you already have. Its command search offers to add a page or a component from a description. The AI Agent panel needs the Windows desktop app and your own Claude or Codex login.

FlutterFlow editor showing a generated About the Studio page with the made-up address 123 Fashion Ave, phone +1 (555) 012-3456 and email hello@fittingroom.studio, and the prompt in the page description box on the right

The one change a new page can answer is the About page. It took about 45 seconds and ignored the project. It wrote an address in New York, a phone number and an email that are not in the brief, called Fitting Room a digital tailoring assistant and added a version number. It is not linked from any screen.

Publishing took two minutes once the project had no errors. I pressed Publish and the app answered on a free flutterflow.app address 2 minutes 12 seconds later. The Basic plan includes one custom domain, which I did not connect.

The weak spot is speed: the main content took about 18 seconds on a simulated phone. Every page I opened also ended in a blank white block under the content. I did not count layout faults or try a real phone.

Every day I also run the FlutterFlow speed test and the FlutterFlow security checks.

A review tells you what happened on one day. This tells you what happens every day after. My own monitor opens the app every five minutes for 30 days, from 26 October to 25 November 2026, and records whether it answered and how fast.

FlutterFlow hosts the app. I cancelled the plan when the testing ended; the plan stays active until 26 November 2026, and the app still answered after the cancel. What happens to the free address after that date is something the record will show.

Every check so far is on the FlutterFlow uptime record.

There is no log-in. The first screen asks Member, Instructor or Admin, and each button just opens that role's screens. Sign-up, log-in and password reset do not exist, so I could not create any of the four test accounts.

The admin screens open for any visitor who types their address, with no session. The app makes no data request at all, so my two attacks had nothing to attack: there are no private bookings to protect, because every visitor sees the same made-up ones.

FlutterFlow test app first screen with the title Fitting Room and three buttons: Member, Instructor and Admin, under Welcome back

In the editor, Authentication is switched off and the Firebase page offers to create or connect a project, which needs a Google sign-in that is yours. With a backend connected this could change, and I did not test that.

This test is not graded: connecting a Firebase or Supabase backend needs an account that is yours, so it is left out, like payments and emails.

There is no data to survive. None of my six data checks could be proved. The editor's Firestore page says No Collections Created, the Ask the studio form saved nothing and the CSV button did nothing.

FlutterFlow test app Instructor Dashboard saying Hello Lena Park, Today Mon May 15, Reformer Basics 8 of 8 booked and an attendee list with Sarah Jenkins, Michael Chen, Emma Wilson and David Miller

FlutterFlow does not host the database for these apps. The data lives in Firebase or Supabase, which you connect. The AI did not connect either, and the sample names in the downloaded code are typed in as text.

This test is not graded: connecting a Firebase or Supabase backend needs an account that is yours, so it is left out, like payments and emails.

I did not run payments or emails, because Stripe and an email service need keys that are yours to supply. The six checks that depend on them are left out, and this test is not graded.

The AI did add a Choose your pass screen with a 5-class pass at $95, a single class at $24 and a line that says Purchase with Stripe. I did not press it.

FlutterFlow test app Choose your pass screen with a 5-Class Pass at $95 and a Single Class at $24, each with the words Purchase with Stripe

Exporting means downloading your app so it can run somewhere else. On FlutterFlow that works on the Basic plan: Download Code gave me a 425 KB file with 178 files in about eight seconds. Connect GitHub and Open in VS Code are marked as Growth features.

It is a plain Flutter project, and the list of packages names no Firebase, Supabase or FlutterFlow service, because none was connected. What it holds is the screens with their sample names typed in, so a developer would still have to build the whole backend. I read the files and did not build them, because Flutter is not installed on my machine.

I did not read the terms, so I cannot say who owns the app you build. Check this before you pay if your app must leave one day.

I emailed one question to FlutterFlow Support, and a full answer came 3 minutes later, even though I sent it outside US business hours. It said Firebase is simpler to start with and Supabase gives more control, and it described an isAdmin field to send admins to their own screens. On export it said the data is exported from the database provider, and gave no steps. It did not say how to stop people choosing the admin role at sign-up.

On Basic, the help widget only searches articles, and chat with a person starts at the Growth plan. Cancelling took four clicks: the bin icon on the plan row, Yes, a short survey, then Cancel Subscription. The plan then read Active until 26 November 2026, and the billing page showed no further charge.

I have not yet read what other users say about FlutterFlow, so this draft has no review scores. Read them before you decide.

If this were my studio, I would not use FlutterFlow's AI to make the app. It made screens that look right and work in no way: no working button, made-up data, and an error that blocked publishing.

It suits people who want a quick design to look at, and who are ready to connect Firebase or Supabase and build the logic by hand in the visual editor. It suits you less if you want the AI to deliver a working app from a brief. I could not try payments without your own keys, I could not connect a backend of my own, and I could not run the twelve changes.

The six graded tests average 2.3 out of 5, and I rate FlutterFlow 2.3. Support is the highest grade, at 4, and two tests score 1.

See the FlutterFlow test results and how I rate.