We rebuilt an Excel quote calculator as an app section with the AI Extension Builder. Same total, to the cent. Files, prompt and screenshots inside.
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.
Coach, gym or program creator: what your app can hold, what the app stores let you sell in it, and how to build it without writing code.
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.
iOS and Android apps for your museum from $70 a month, web app included. Real 2026 prices, hidden costs, audio guide, languages.
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.
An event app costs from $36 a month with a no-code builder, $1,000 to $20,000 a year on event platforms. Real 2026 prices and the ticketing question.
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.
GoodBarber is now listed in the ChatGPT app directory. Connect your app and manage products, content, members and push in plain language.
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.
The short version. An AI-built app that shines in a demo has proven it can render, not that it can run. Production is decided by seven boring things: accounts, empty states, store review, push delivery, the stack bill, the first update, and week-to-week operation. Run the seven checks below before you announce a launch date. On GoodBarber, the platform carries the first six, some pre-built, some as a service, and the seventh comes with an AI agent connection.You built an app with an AI app builder, or vibe-coded it prompt by prompt over a few evenings. It works. But look at the conditions under which it works: your phone, your Wi-Fi, your account, data you typed in yourself, a build generated an hour ago. A demo is an app tested exclusively under friendly conditions.Production ready means the opposite: the app keeps working once the friendly conditions are gone. Strangers instead of you, a reviewer instead of an audience, months instead of an afternoon.We have already written about why this gap exists: our article on the seven walls between a prototype and the stores maps the structural distance, and our piece on building an app versus running one names the work that starts after launch. Those articles end in questions worth asking yourself. This one turns the questions into experiments: seven checks, each with a concrete procedure and a pass condition you cannot argue with, all of them runnable this week. If a check feels boring, that is the point. Production is where the boring bugs live.
Most small businesses are sold an 8-page website they don't need. What they really need: a findable presence, bookings, and an app. A PWA is all three.
AI app builder lock-in rarely lives in the code. What export really covers, what stays behind, and what owning your app should mean.
Website vs app vs PWA: what each one does, what it costs to keep alive, and how to choose. A server-rendered PWA is both a website and an app in one.
AI agents can now operate a live mobile app: publish content, send push, manage the shop. Here is what that takes, and where it is real vs hype.
The short version. A mobile app that is not updated does not stay frozen: it decays. Push notifications quietly stop landing, new users stop finding it, and the stores eventually hide or remove it. On GoodBarber, the platform absorbs every OS and store change and ships the fix with your next update, so a year of mobile churn reaches you as a release note. The one thing you still have to do: update regularly.Your app works today. Leave it untouched for a year: it will still open, still look right, still do its job on your own phone. Nothing in your dashboard warns you. That is the trap.Because while your app stood still, everything underneath it moved. Apple and Google shipped new operating systems, rewrote store rules, retired old plumbing. You notice months later, through symptoms that look like a marketing problem: downloads sag, push campaigns reach fewer people, a loyal user writes that the app misbehaves on their new phone. The decay is real, and it has nothing to do with the quality of your content.
An MCP server on a backend gives an agent your database. GoodBarber's application MCP gives it your live app: feature-gated, per-app OAuth, verified writes.
AI app builders nail the prototype. Production is another job: ownership, auth, stores, upkeep. How GoodBarber ships a native app AI agents can actually run.
On February 2, 2025, Andrej Karpathy named the thing: “There's a new kind of coding I call 'vibe coding', where you fully give in to the vibes, embrace exponentials, and forget that the code even exists.” Nine months later, “vibe coding” was Collins Dictionary's Word of the Year. Few tech terms have traveled that fast — because few tech experiences are that intoxicating.The numbers say the same. Lovable reached $100M in annual recurring revenue eight months after launch, with more than 10 million projects created on the platform. Bolt.new reached roughly $40M ARR in about five months. Replit multiplied its revenue tenfold in half a year after launching its agent. Millions of people typed a sentence and watched software appear.We understand the high. It's the same one our users feel when they describe a feature and see it running in their app. Seeing your idea work — not mocked up, working — changes what you believe you can build. That part deserves no irony.But Karpathy put the caveat in the very same post: vibe coding is “not too bad for throwaway weekend projects.” The people living it say it with less restraint. One builder on r/nocode titled his post “Tried Bolt.new. Felt Like a God. Then Reality Slapped Me.” and summed up the morning after: “Suddenly, the dream of 'AI-powered coding' turned into 'AI-powered anxiety.'”The demo isn't a lie. The mistake is reading it as a finished product.
Gartner says 33% of enterprise software will include agentic AI by 2028. Your GoodBarber Skills already qualify — here's how to activate them, no code needed.
Agencies and resellers: run a daily review across every client app from one AI agent. How to manage multiple GoodBarber apps with AI through MCP — in 3 steps.
AI content publishing for editors and nonprofits: let an agent publish, schedule and run your app's content calendar through MCP — shown live, step by step.
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