Bubble Problems & Issues
Real user-reported problems, complaints, and limitations for Bubble. Based on analysis of 13 signals.
Overall score: 56/100
Issues by Category
Bubble workload unit pricing made bills jump
In April 2023 Bubble moved from capacity-based plans to workload units (WU). The announcement thread passed 2,000 replies and some users reported bills jumping several times over, such as from about $126 to $800 a month. Bubble said 83% of paying apps would see under a $50/month change and offered an 18-month legacy period.
Why is Bubble so expensive? Workload overages
Plans include a fixed WU allowance (50K Free, 175K Starter, 250K Growth, 500K Team); beyond that you either buy workload tiers ($26-$539/month) or pay overages at $0.30 per 1,000 WU. Searches, database writes, backend workflows and API calls all consume WU, so costs grow with traffic and with inefficient builds.
Hard to predict how many workload units an app will use
Bubble decides how many WU each of its 12 activity types costs, and users say they cannot estimate monthly usage before launch. Capterra reviewers note you 'can be surprised' by the bill, and forum users with unoptimized apps reported millions of WU in a week.
Bubble free plan is too limited to launch
The Free plan has 50K WU, 0.5 GB storage, a 200-entry database limit across dev and live, no custom domain and no live mobile version. It is for learning only; launching needs Starter at $59/month billed annually.
Bubble backend workflows silently fail or stop
Forum threads report scheduled API workflows that appear in logs but never run their actions, and long loops failing with 'Operation timed out -- app too busy'. There is no built-in alert when a backend workflow dies mid-run.
Bubble outages take apps and editor down
Because Bubble hosts every app, platform incidents take customer apps offline. Mid-2026 incidents included an editor and app outage (June 30), a login failure after a bad deployment (July 7) and a load balancer issue lasting about six hours (July 13).
Why is my Bubble app so slow?
Slow page loads and repeating groups are among the most common forum topics. Large lists, unconstrained searches, many repeating groups on one page and big images are the usual causes; performance generally needs expert optimization on bigger projects.
Bubble vendor lock-in: no code export
Bubble does not export your app's source code, so leaving means rebuilding the front end and workflows elsewhere. Users who migrated off Bubble cite lock-in plus fear of future price hikes; some move the backend to Xano first to reduce dependence.
Bubble learning curve is steeper than 'no-code' suggests
Reviewers on Capterra and review blogs repeatedly say Bubble takes weeks to learn, especially workflows, data types and privacy rules. Even developers report its conventions take time to click.
Bubble API Connector errors when initializing calls
The API Connector's generic 'There was an issue setting up your call' message hides the real HTTP error. Causes range from bad headers and malformed JSON bodies to occasional Bubble-side bugs that cleared on their own.
Bubble native mobile builds don't show in TestFlight
Bubble's native mobile builder is newer and forum users report builds timing out, builds missing from TestFlight and push-notification capability errors. Most fixes involve App Store Connect settings rather than Bubble itself, which confuses non-technical builders.
Bubble version control and merge conflicts
Users report being blocked from deploying with 'Behind Live' messages, failed branch merges and forced syncs that overwrote development work. Branches are only on Growth and above, and Starter has basic version control.
Bubble privacy rules hide data in live apps
Data that shows in development often disappears in live because privacy rules or roles block searches and fields, or because live has its own database. Misconfigured privacy rules are also the most common Bubble security gap, a frequent audit topic.
Regret Patterns
Common reasons users regret choosing Bubble.
Bill jumped after traffic grew
Apps that were cheap during testing burned through WU after launch, pushing owners into tiers or overages they hadn't budgeted for.
Locked in when it was time to scale
Founders who raised money or hired developers found they had to rebuild from scratch because Bubble has no code export.
Underestimated the learning curve
Users expecting drag-and-drop simplicity spent weeks learning workflows, data types and privacy rules before shipping.
Built inefficiently, paid for it later
Quick builds with unconstrained searches and heavy workflows used millions of WU; fixing it meant hiring an expert or migrating.
Pricing changed under them
Long-time users on legacy capacity plans were moved to workload pricing in 2023 and some saw multi-fold cost increases.
Mobile publishing harder than expected
Builders expecting one-click app store publishing hit TestFlight, compliance and push-notification setup issues.
When Bubble Breaks Down
Specific scenarios where Bubble fails or underperforms.
Viral traffic spike
Sudden traffic consumes workload fast; with overages off the app goes offline, with overages on the bill spikes.
Bulk data imports or recursive workflows
Large imports and recursive backend workflows can time out with 'app too busy' or loop more times than intended, burning WU.
Pages listing thousands of records
Repeating groups without pagination or constraints make pages slow and expensive.
Multiple editors working in parallel
Branch merges and 'Behind Live' sync conflicts can overwrite work, and branches need Growth or higher.
Bubble platform outage
Because Bubble hosts everything, incidents like the July 2026 load balancer outage take every customer app offline.
Moving to a coded stack
No code export means the UI and workflows must be rebuilt; only data can be exported.