The GoodBarber blog

Product news, how-to guides and ideas to create, launch and grow your app.

Highlights

Pierre-Laurent Medori    3 min read

Your Zeffy events and fundraisers now show up in your app

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.

  6 min read

How do I change the colors in my app?

In GoodBarber, each color of your theme plays a role. On one of our apps, changing a single color repainted 95 settings at once, without opening a screen.

  3 min read

Your Church Center events now fill your church app's calendar on their own

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.

  4 min read

Your HelloAsso events, memberships and donations now show up in your app

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.

Latest articles

  7 min read

How do I set borders in my app?

In GoodBarber, every cell, widget and field already has a 1 px border. Give it a color, a thickness of 1, 2 or 4 px, or a single side under a title.

  4 min read

The new GoodBarber back office: more clarity to build your app

It all starts with the design. A new typeface, Plus Jakarta Sans, a blue for the interface, a green kept for publishing and confirming, softer corners, gentle shadows and redrawn icons. The whole thing reads calmly, and every color has a job: blue guides, green confirms.In My App, your app's preview takes the center of the screen and the settings sit together in a panel on the right. You edit on one side, you see the result on the other, and your app stays in front of you the whole time.

  3 min read

Your Ticketmaster events now fill your app's calendar on their own

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.

  4 min read

Find answers in podcasts with GoodBarber Chatbot

Take a local radio station with live programmes, a schedule and interviews available on demand in its app. Every recording has a title and a description. Those help listeners browse, but an interview often contains useful details that never make it into the summary.In our example, the episode is called “The city we share”. Its description introduces a conversation about everyday life in the city. During the recording, an urban planner explains the city's approach to summer heat: planting trees along school routes, adding shade to playgrounds and replacing some paved surfaces with planted areas.None of those measures appears in the title or description. A listener remembers the subject and asks:Which episode explained how the city plans to reduce summer heat?We have added audio podcasts as knowledge sources for GoodBarber Chatbot so questions like this can lead back to your programmes. There are two levels: the written information you publish about each episode, and the spoken content you choose to have transcribed.

  4 min read

Your Twitch live streams and videos, now in your app

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.

  4 min read

Turn documents into answers with GoodBarber Chatbot

In any app, publishing a useful document is only part of the job. People also need to find the right information when they are about to act. A clearly named file helps someone browsing a library, but a reader may arrive with a more immediate question.Employee communication is only one possible application. The same approach can support learning resources, member guides, technical references or any other useful documents shared through an app. For our example, consider a colleague trying to book a client trip who needs to know:Which travel expenses need prior approval?We have added document sources to GoodBarber Chatbot so that the files you already maintain can support these conversations. You select the documents. Users ask in their own words. The assistant looks for relevant passages and uses them to build a response.The question becomes a way into the policy. Employees can start with the decision in front of them, even when they do not know the title of the document that explains it.

  5 min read

Siri Actions: ask your GoodBarber iOS app for its latest article or video

Siri Actions now answers two new questions: the latest article and the latest video in a section of a GoodBarber iOS app. Siri names the item and offers to open it by voice. They reach every app with its next store update. Siri Actions is the set of questions a GoodBarber iOS app answers out loud, for newspapers, radio stations, schools, organizations and any app that publishes content. Its first question, "What's new", gives an overview of your home screen. When we launched it in September 2026, we said the next one would be the latest article in a section. Here it is, and the latest video comes with it. Each goes straight to one item and offers to open it. Your audience goes from a question to the article in a single conversation, without searching for it.

  7 min read

How do I adjust the shadow in my app?

In GoodBarber, a list's shadow turns on in one tap: 3 px offset, 6 px blur, black at 20%. Then adjust it down to the pixel, color included.

  3 min read

Your Bluesky and Mastodon posts now show up in your app

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.

  12 min read

How much does a fitness app cost in 2026? Real prices

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.

  3 min read

The AI Extension Builder now runs on GPT-6 Luna

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.

  7 min read

Can a mobile app work without an internet connection? What works offline and what doesn’t

A mobile app can work partially or completely without a connection if the data and functions required for a task are available on the device. A guide can display a page that was opened earlier. A podcast app can play an episode downloaded in advance. An offline-first field tool may even store a completed action locally and synchronize it later.Those are three different technical promises:Cached content: an item previously loaded from the network remains temporarily available on the device.Deliberately saved content: the user chooses an article, audio file or another supported item to keep for later.Offline-first operation: the app performs all or a critical subset of its core functions from local data. If it also accepts changes offline, those changes must be synchronized and any conflicts handled when connectivity returns.Our Offline extension supports the first two approaches for compatible content: keeping previously loaded material available and letting readers save supported items through Favorites.Android’s definition of an offline-first app requires all or a critical subset of its core functions to work without the internet. That architecture requires local data sources. If the app also accepts changes offline, it needs synchronization rules and a way to handle conflicts when connectivity returns. It is much broader than caching a page.This distinction matters when selecting an app builder or describing your own app. “Available offline” should identify a specific task. It should not imply that every screen and action behaves as it does online.

  7 min read

Do I need to update my app for a new iOS or Android?

Every year iOS and Android move up a version, and functions your app relied on stop existing. Who tracks those deadlines, what gets adapted on your behalf, and why September can go back to being a normal month.