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Pierre-Laurent Medori
Head of Backend Engineering
I'm Head of Backend Engineering at GoodBarber, where we build the platform that lets anyone create native apps without writing code. My team owns what runs behind the scenes — the APIs, services, and infrastructure that turn a no-code project into real published apps, hosting, push, and a full store. I write about the engineering that keeps "no-code" working at scale, and where AI fits in.
The short version. Meta catalog, map and Meta catalog, listings are two extensions of GoodBarber, the no-code app builder, that read an agency's "Home listings" catalog, the XML feed it gives Meta for its real estate ads. Meta catalog, map fills a Map section: each property with a known position becomes a pin with its own page, sorted by distance when the app knows where the user is. Meta catalog, listings fills an Article section with the same properties, newest first. You connect them with the link to your catalog feed. Both are free for Content apps.Agencies build this catalog to reach buyers and tenants where they spend their time. Meta's apps were used by 3.60 billion people a day on average in June 2026, up 3% in a year, according to Meta's second quarter 2026 results published on July 29, 2026. Here is how the two extensions play out for an agency in Hamburg.
Selling apps to schools as an agency: what a school really buys, what each app costs you on a single reseller plan, and the Apple account step to start at once. Every fact below was checked at its source on October 27, 2026.
The short version. Givebutter Events and Givebutter Campaigns are two extensions of GoodBarber, the no-code app builder, that read a nonprofit's campaigns on Givebutter. Givebutter Events fills a Calendar section with upcoming events, at their time in the event's time zone, with their location unless you share it with attendees only. Givebutter Campaigns fills an Article section with active forms and fundraising pages, with their cover image and description. You connect them with a Givebutter API key. Both are free for Content apps: each section counts as one of the extensions included in your plan.A lot of giving already goes through Givebutter. On Giving Tuesday 2025, supporters gave $20 million on the platform, up from $16.4 million in 2024, from more than 93,000 donors across 16,000 active campaigns, according to Givebutter's recap published on December 8, 2025. Here is how the two extensions play out for an animal rescue.
The short version. Zeffy Events and Zeffy Campaigns are two extensions of GoodBarber, the no-code app builder, that read a nonprofit's campaigns on Zeffy. Zeffy Events fills a Calendar section with upcoming events, one entry per date when an event runs on several dates, each with a button that opens its Zeffy ticketing page in the app. Zeffy Campaigns fills an Article section with donation forms, peer-to-peer fundraisers and memberships: memberships open in the app, donations open in the phone's browser. You connect them with your Zeffy API key. Both are free for Content apps: each section counts as one of the extensions included in your plan.Zeffy says more than 100,000 nonprofits have raised over $2 billion through its platform, in an article published on June 16, 2026. Here is how the two extensions play out for a youth theater company that sells its show and raises funds on Zeffy.
The short version. Planning Center is an extension of GoodBarber, the no-code app builder, that fills a Calendar section with the events a church publishes on Church Center over the next six months. Recurring events appear once per date, at their public times, in the church's time zone, with their image, location and description. When an event has a sign-up, a button opens the form in the app. You connect it by signing in with a Planning Center Calendar administrator account: there is no key to copy. It is free for Content apps: each section counts as one of the extensions included in your plan.Many churches already run their calendar in Planning Center: it counts 78,000 active churches and 4 million active users, according to its About page, consulted in October 2026. Here is how the extension plays out for a church with a weekly service and a youth retreat.
The short version. HelloAsso Events and HelloAsso Campaigns are two extensions of GoodBarber, the no-code app builder, that read an association's public forms on HelloAsso. HelloAsso Events fills a Calendar section with upcoming events, with their date, venue and prices, and a button to register in the app. HelloAsso Campaigns fills an Article section with memberships, donation forms and fundraisers: memberships open in the app, donations open in the phone's browser. You connect them with your association's HelloAsso API credentials. Both are free for Content apps: each section counts as one of the extensions included in your plan.HelloAsso is where many French associations already sell their tickets and collect their memberships. In February 2025, it passed two billion euros collected for associations since 2009, half of it in the previous 18 months, and it counts 376,000 registered associations, according to Le Journal des Entreprises on March 6, 2025. Here is how the two extensions play out for a neighborhood sports club.
The short version. Ticketmaster is an extension of GoodBarber, the no-code app builder, that fills a Calendar section with the upcoming events a venue sells on Ticketmaster. Each event arrives with its image, its description, its date and time, and a button to buy tickets on Ticketmaster; canceled events are not shown. You connect it with a free key from Ticketmaster's developer portal and your venue's ID. It is free for Content apps: each section counts as one of the extensions included in your plan.Plenty of venues already sell there. Ticketmaster sold 346 million fee-bearing tickets in 2025, according to Live Nation's full-year results, published on February 19, 2026. Here is how the extension plays out for a concert hall that sells all its shows on Ticketmaster.
The short version. Twitch is an extension of GoodBarber, the no-code app builder, that adds a Twitch channel as the source of a Video section. When the channel is live, the stream sits at the top of the section; the rest of the time, the section lists the channel's videos. You connect it once, with a Client ID and a Client Secret from Twitch's developer console. It is free for Content apps: each section counts as one of the extensions included in your plan.The audience is on Twitch. In September 2026, viewers watched 1.51 billion hours of live streams there, with 2.1 million people watching at any given moment on average, according to TwitchTracker. Here is how the extension plays out for a creator who goes live every Tuesday at 8 pm.
The short version. Bluesky and Mastodon are two extensions of GoodBarber, the no-code app builder, that turn the public posts of an account into articles in your app. You enter the account, and its posts arrive on their own, with images, link previews and quoted posts, while replies and reposts stay on the network. Both are free for Content apps: each section counts as one of the extensions included in your plan.The audience is there. Bluesky grew from 25.94 million to 41.41 million users in 2025, according to its 2025 transparency report, published on January 29, 2026. Here is how the two sources play out for a local newspaper with an account on each network.
Appointment booking now takes several people per time slot, works without a Google Calendar, and lists every attendee in a new Bookings tab of your back office. Here is how it plays out for a studio running a 9:00 class for ten.
Five ways lead to a fitness app for your business, and each is priced its own way: a flat plan, an add-on to gym software, per client, per subscriber or quoted. The table below compares what each one costs and the job it is built for.
OpenAI released GPT-6 Sol and GPT-6 Luna on September 22, 2026, after GPT-6 Astra, the flagship of the family, earlier the same month. Luna is the smallest of the three. OpenAI describes it as its most efficient model for focused, high-volume tasks, and sells it at half the price of GPT-5.6 Luna, the model it replaces in OpenAI's own line-up.The next morning, we moved the AI Extension Builder to GPT-6 Luna, for every app, on the four moments where a model is at work: understanding your request, writing the code of the section, rewriting it when you ask for a change, and answering the questions you ask about what it built.
Imagine a listener asking an assistant about a programme in September 2026 and receiving its 2025 schedule. The cited page was accurate when it was published. Nothing on it says the information has expired, so the assistant treats it as current. The listener misses the programme, or writes to your team to ask which version is right. An old membership offer or a former studio address produces the same confusion.Carolyn Shelby raised this issue in Search Engine Journal on September 7, 2026: contradictory information about a brand can mislead AI search. Three mechanisms explain why your own pages end up in the answer:Assistants retrieve pages by wording. A question that uses a programme's former name leads straight to an archive that still contains it.They merge several sources into one answer. The dates that separated those sources become hard to see.A new page does not retire the old one. The current schedule and the old statement both remain available, and nothing tells the assistant which one applies.So start with the source the assistant cited. Which sentence on that page no longer describes your service? That sentence needs a date and a route to the current answer.
The app stores did not take a vacation, so start by catching up with them. Apple and Google tighten their requirements every year: target API levels, privacy rules, SDK deadlines. An app that stands still does not stay the same, it slowly drifts out of compliance, and most of that damage is invisible until it is expensive. We detailed exactly what quietly breaks when you don't update your app, and the short version is: rebuild and resubmit before the stores make the decision for you.If your app runs on GoodBarber, most of that maintenance happened over the summer without you noticing, which is exactly the point. Still, open your store consoles once and check that nothing is waiting on you.
TL;DR: You can build and preview an app for free with several no-code tools. Publishing a native app to the App Store and Google Play requires a paid plan with every major builder, plus two fees no vendor can waive: Apple's 99 $ per year developer account and Google Play's one-time 25 $ registration. Free plans are genuinely useful for validating an idea. They are not a way to run an app in production.
A church app costs from $36 a month with a no-code builder to $119 and more on church platforms. Real 2026 prices, hidden fees, and the donations question.
Every GoodBarber app comes with its own MCP server. It is the secure doorway that lets an AI assistant, with your permission, read and manage your app: write and schedule articles, update products, check your stats, prepare push notifications. You connect the assistant once, it authenticates through OAuth, and it only ever sees your app.If you are discovering this, two good starting points: our MCP page explains how to connect an assistant to your app, and this article explains what makes an application MCP server different.