AI App Builder Over-the-Air Updates in 2026: Which Fixes Reach Users Without a New Review

Quick Answer

Whether you can fix a shipped app today has almost nothing to do with which AI app builder you used, and almost everything to do with whether your change crosses the native boundary. Every tool that produces a real mobile binary draws that boundary in the same place, and it is drawn by the platform, not by the vendor.

There are three structurally different situations, and only one of them makes over-the-air updates a feature at all.

No binary. Lovable, v0, Softr and Webflow publish to a web URL. There is nothing installed on the device, so every change is live on the next page load. "Over-the-air" is not a capability here, it is the absence of a store.

A web view wrapper. Base44's generated app is "a lightweight native wrapper around your web app that opens only your app's URL". Content and design changes appear without a new submission because the binary never contained your app in the first place. What the binary does contain, the shell, still needs a rebuild.

A real bundle with an update channel. Bubble and the Expo based tools ship your JavaScript inside the binary and can replace it later. Bubble's documentation draws the line plainly: "Minor updates, such as text changes and UI tweaks, can be pushed via over-the-air updates without resubmission. However, changes that affect the app's native configuration, such as adding new device permissions, require a new build and app store submission."

The practical test, in one sentence: if your fix touches native code, native dependencies, device permissions or the SDK version, no tool in this comparison can ship it without a new binary and a new review. Everything else is negotiable.

One finding worth flagging early, because it is the opposite of what the marketing implies: Bolt.new and Replit both produce Expo projects, and Expo is the platform that invented this capability, yet neither vendor documents an over-the-air update path. Both document the same answer to "I changed something": build a new binary and submit it again.

The question that only exists after you ship

Getting into the App Store is a one time problem. Shipping a fix to people who already installed your app is a permanent one, and it is the point at which the difference between these tools stops being about convenience and starts being about how fast you can respond to a bug.

The stakes are asymmetric in a way that is easy to underestimate. A web app with a broken checkout is broken for as long as it takes you to deploy, which is minutes. A native app with a broken checkout is broken for as long as it takes Apple to review your fix, which is usually a day or two and occasionally much longer. If you cannot ship without a review, your worst case incident length is set by someone else's queue.

That is why this axis matters more than its coverage suggests. It is also why the answer is more uniform than you would expect: the vendors differ enormously in how they get you into the store, and barely at all in what they let you change afterwards, because the rule that governs it is written by Apple and Google rather than by any builder.

Axis 1: is there a bundle on the device at all

Before asking whether a tool supports over-the-air updates, ask what it actually put on the phone. The answer sorts these nine tools into three groups, and the groups behave completely differently.

No binary at all

Lovable is unambiguous about this in its own publishing documentation: "Lovable builds web apps and publishing always deploys to a web URL (for example, yourproject.lovable.app or your custom domain). There isn't a built-in flow that packages and submits your project to the App Store or Google Play." It offers two routes to an installable experience, a Progressive Web App or "a Capacitor wrapper" built "outside of Lovable", and states flatly that "Lovable does not generate projects in React Native."

v0, Softr and Webflow sit in the same position. Their output is a web deployment, and their entire documentation set is silent on native binaries because there are none.

For all four, the update story is trivially perfect and slightly beside the point. You deploy, and the next request serves the new version. There is no review, no rollout, no version skew, and no store. Base44's own documentation describes the same property for the browser based version of its apps: "Your app updates automatically, so everyone opening it from the home screen always sees the latest version."

The cost of that perfection is everything a store gives you, which is the subject of the best AI app builder for native iOS and Android apps. It is worth being precise about the trade rather than treating "instant updates" as a free win: you get instant updates because you gave up the binary.

A web view wrapper

Base44 occupies a genuinely distinct middle position, and its documentation is refreshingly direct about the mechanics. "Your mobile app runs your published Base44 app inside a secure web view. This is a lightweight native wrapper around your web app that opens only your app's URL. When you publish most content and design changes in Base44, they also appear in your app without sending a new version to the Apple App Store or Google Play."

Read that carefully, because the reason it works is not that Base44 built a sophisticated update system. It is that the installed binary is close to empty. It holds a shell that points at a URL. When you change the thing at the end of the URL, the shell picks it up, in the same way a browser would.

That has an obvious upside and a much less obvious limit. The upside is that content and design changes genuinely reach users without a submission. The limit is that anything belonging to the shell rather than to the web app is frozen in the binary until you build a new one. Base44 names one of these explicitly: push notifications are configured "when you generate your store files", not afterwards.

Note the hedges in Base44's own wording, which are load bearing. It says "most content and design changes" and, in its FAQ, that updates "usually appear in the app without submitting a new version". Those qualifiers are doing real work and should not be read as boilerplate caution.

A real JavaScript bundle

Bubble and the Expo based tools put your application code inside the binary. This is the only group for which over-the-air updating is a mechanism rather than a side effect, and consequently the only group with a real boundary to understand.

Expo, which underlies both Bolt.new's output and Replit's mobile pipeline, describes the capability precisely. EAS Update "is a cloud service that serves updates for projects using the expo-updates library", and it enables an app to "update its own non-native pieces (such as JS, styling, and images) over-the-air". Users "see the new version on their next app launch or reload".

Axis 2: where each mechanism draws the native boundary

Every tool in the third group draws the same line, and it is worth stating in the vendors' own terms because the agreement between two independently written documentation sets is the strongest evidence in this article.

The Expo boundary is the runtime version

Expo publishes an explicit list of changes that require a new binary rather than an update: "Change to native code or native dependencies", "Change to app permissions (camera, location, and others)", "Update the Expo SDK version", and "Anything that requires a new app binary version".

The enforcement mechanism is worth knowing, because it is what stops this from being dangerous. "EAS Update uses runtime version policies to ensure updates are only sent to builds with compatible native code. If your native code changes, you create a new runtime version." An update is therefore addressed to a specific native shape, and a phone running an incompatible binary simply does not receive it. You cannot accidentally push a JavaScript bundle that calls a native module the installed app does not have.

The same system provides the feature that matters most during an incident and is almost never discussed: reversal. Expo describes a "Republish for reverting mistakes" capability that lets you "republish a previous, stable version on top of the problematic one, much like a new 'commit' in version control systems." If your hotfix is itself broken, you are minutes from the previous state rather than another review cycle away.

The Bubble boundary is the native configuration

Bubble reaches the identical conclusion by a different route. Its native mobile documentation answers the question "Why does my app need to be rebuilt and resubmitted for some updates" like this: "Minor updates, such as text changes and UI tweaks, can be pushed via over-the-air updates without resubmission. However, changes that affect the app's native configuration, such as adding new device permissions, require a new build and app store submission."

Two independently maintained platforms, the same line, drawn at device permissions in both cases. That is not a coincidence and it is not a vendor policy. It is a consequence of how the operating systems work: permissions and native modules are declared in the binary's manifest, which the store validated at review time, so changing them means a new binary by construction.

One status note, because it changes how much weight to put on Bubble here. Bubble's native mobile app builder has moved to public beta, and its documentation has been relocated from the beta section into the main user manual. It was in a more restricted beta earlier in 2026. Treat its behaviour as current but still moving.

The documented path is not always the capable path

Here is the finding that took the most work to establish, and it is the most useful one for anyone choosing a tool on this axis.

Bolt.new produces a real Expo project. Expo is the vendor of EAS Update. You would therefore expect Bolt's documentation to describe over-the-air updates as the way to ship a fix. It does not. Its Expo integration guide has a section titled "Update your app", and for mobile it gives exactly one instruction: "For mobile updates, rebuild and resubmit", followed by eas build --platform ios --auto-submit and eas build --platform android. There is no mention of EAS Update anywhere in that guide.

Replit is in a comparable position. Its mobile pipeline is explicitly Expo based, to the point that its publishing flow "opens Launch, an Expo flow embedded in Replit". Its published documentation set contains no over-the-air update guidance: a search of its full documentation index returns zero update oriented pages for mobile, and its post publication guidance is about the review queue, including the observation that rejections "are common and you can resubmit right" away.

The honest reading is a distinction between capability and support. Because both produce standard Expo projects, the expo-updates library and EAS Update are available to anyone willing to configure them outside the builder. But neither vendor documents that path, neither wires it up for you, and following the documentation you are actually given leads to a full rebuild and resubmission for every mobile change.

For Bolt, whose output is source code you own and run yourself, that is a reasonable division of labour: it hands you a standard project and the standard tooling applies. For Replit, whose entire proposition on iOS is that it automates the build and signing pipeline for you, the gap is more surprising, because the one part of the lifecycle it does not automate is the part you will repeat most often.

Axis 3: the two store rules that bound all of it

None of the above is the vendors' choice. Two platform rules set the outer limit, they are written very differently, and the difference matters.

Apple's App Review Guideline 2.5.2 is the strict one. Apps "should be self-contained in their bundles, and may not read or write data outside the designated container area, nor may they download, install, or execute code which introduces or changes features or functionality of the app, including other apps." The only exception written into the guideline is for educational apps that teach or test executable code, and even then the source must be "completely viewable and editable by the user."

Read literally, that is a broad prohibition, and it is the reason the operative phrase in every over-the-air discussion is "introduces or changes features or functionality". Fixing a layout bug or correcting a label is not naturally read as introducing a feature. Shipping a whole new screen is closer to the line.

Google's Device and Network Abuse policy is stricter in letter and much clearer in effect. It states that "an app may not download executable code (such as dex, JAR, .so files) from a source other than Google Play", and then carves out precisely the case that matters: "This restriction does not apply to code that runs in a virtual machine or an interpreter where either provides indirect access to Android APIs (such as JavaScript in a webview or browser)."

That carve-out is the legal foundation of the entire practice on Android. Interpreted JavaScript, which is exactly what a React Native bundle or a web view payload is, sits explicitly outside the prohibition.

Expo, notably, does not offer an interpretation of Apple's rule on your behalf. Its FAQ puts the obligation back on you: "One of the rules of EAS Update is that you need to follow the rules of the platforms and app stores you are building for", and "your updates need to follow the App Store and Play Store guidelines, including the content of the updates and how you use them." That is the correct posture for a tooling vendor and it is also a warning. The tool will not stop you from shipping an update that a reviewer would consider a new feature.

The comparison table

What reaches an installed user without a new store review. September 2026, from vendor documentation.

The Documented OTA path column is the one to read. Only Bubble names the capability and tells you what it covers. Base44 has it structurally without calling it that. The two Expo based builders have the strongest underlying technology and the weakest documentation of it.

The details that decide whether it works at all

Permissions are the trip wire. Both Expo and Bubble name device permissions specifically, and it is the change most likely to catch you out, because it rarely feels like a native change. Adding a "upload a photo" button feels like a UI change. It requires camera or photo library permission, which lives in the binary's manifest, which means a new build and a new review.

The bundle identity must not drift. Base44 warns that it "automatically configures a Bundle ID and signing key for your app files. These values cannot be changed inside the generated IPA or AAB files. If the values do not match a previous version that you uploaded manually or from another tool, the stores block the update." This is an update failure that has nothing to do with your code and everything to do with identity continuity, and it bites hardest if you built your first version with a different tool.

Users get the update on next launch, not immediately. Expo is explicit that "app users see the new version on their next app launch or reload". An over-the-air fix is fast compared with a review, not instant compared with a web deploy. Someone with the app already open keeps running the old code.

Rollback is an unevenly distributed feature. Expo documents republishing a previous version over a broken one. Bubble's documentation describes what can be pushed over the air but not how to reverse it. For a web view wrapper, reversal means reverting the web app, which is a normal deployment. This is worth checking before you need it.

Wrappers carry a separate risk that updates do not fix. A web view wrapper is exposed to Apple's guideline 4.2 minimum functionality standard, which is discussed in the AI app builder App Store submission comparison. Frictionless updates do not help if the binary should not have been accepted.

The web deploy is a separate step from the mobile one. Bolt's update instructions list web and mobile as two different procedures, eas deploy --prod for web and a full rebuild for mobile. If your product has both, they drift apart unless you ship both.

Verdict, September 2026

If your fix touches native configuration, every tool here behaves identically, and no builder can help you. Permissions, native dependencies and SDK version changes require a new binary and a new review, on Bubble, on Expo, and on anything else that puts real code on the device. Choose on other criteria, because this one does not discriminate.

If you want a builder that produces a real native app and tells you what you can fix afterwards, Bubble is currently the only one that documents it. Its statement of the boundary is clear, it matches Expo's independently, and it is the answer to give someone who asks whether a shipped app can be patched. The caveat is that the native builder is in public beta, so the behaviour is current rather than settled.

If the ability to change things after shipping is your dominant concern, the web view wrapper wins on that axis alone, and you should be clear eyed about what you paid for it. Base44 gives you the most latitude to change the running app because it put the least into the binary. The bill arrives as guideline 4.2 exposure and the frozen shell, not as a slower update.

If you are on Bolt.new or Replit, you have the best update technology in this comparison and no documented way to use it. Both hand you Expo. Expo built EAS Update. Neither guide mentions it, and both tell you to rebuild and resubmit. If you can configure expo-updates yourself, you get runtime version safety and republish based rollback, which is the strongest position on this page. If you cannot, you are in the weakest one, and you should assume every mobile change costs a review.

If you have not committed to a binary yet, notice that this entire problem is optional. Lovable, v0, Softr and Webflow do not have an update story because they do not have an update problem. That is one axis among several, and the 2026 AI app builder comparison matrix sets it beside code ownership, portability and the rest. But on this axis specifically, staying on the web is not a compromise. It is the only configuration where a fix reaches every user the moment you deploy it.

The general rule, if you remember one thing: the boundary is drawn at the native manifest, by the operating system, and it is the same boundary everywhere. Ask what your change touches, not which builder you are on.