ProtoPie costs $25-47/month per editor, which many users find excessive. Enterprise plans require a minimum of 3 seats at approximately $2,000-$2,500 each, totaling $6,000-$7,500 minimum commitment. Multiple reviewers note it costs 'double Adobe Creative Cloud' despite offering only prototyping functionality.

Smartwatch/Wear OS support, advanced Connect features, and other commonly-needed capabilities require the Enterprise plan. Users frustrated that watch features 'should be available to lesser plans since commonly used'. This forces teams into expensive 3-seat minimum Enterprise contracts for basic functionality.

Users report student plans being downgraded from Pro to Basic features without adequate communication. Forced updates have changed plan limitations, leaving users with fewer features than they originally paid for. This erodes trust in the subscription model.

Sharing prototypes with collaborators and developers who need to read values but aren't editors adds significant cost. Teams must pay for viewer seats or share access in limited ways, making collaboration more expensive than anticipated.

Despite being marketed as 'no-code', ProtoPie's formula system uses programming concepts that overwhelm designers without technical backgrounds. Users report the initial learning phase seems daunting due to depth of features, with mastery taking weeks to months. The trigger-response system requires significant time investment to understand.

Users report there aren't enough informative tutorials to learn the tool effectively. Features are not well explained, and the documentation doesn't cover advanced use cases thoroughly. This compounds the already steep learning curve.

ProtoPie lacks autolayout and responsive design capabilities, a major limitation for web and app designers who need prototypes to adapt to different screen sizes. Users must manually resize and reposition elements for each device, creating significant extra work compared to tools like Figma or Framer.

ProtoPie cannot distinguish between single and double clicks, cannot detect intersection/overlap of objects, lacks auto-animate like Principle/Flinto, has no 4K interaction recording, and no webcam support on desktop. These gaps force workarounds or make certain interactions impossible.

ProtoPie is prototyping-only and requires designs to be created in Figma or Sketch first. This adds an extra workflow step and tool dependency that competitors like Framer don't require. Users must maintain proficiency in multiple tools and manage file syncing.

Users note the ProtoPie UI has gone years with very little improvement. The slow development pace of the editor means requested features take a long time to implement, if ever. This creates frustration for power users who see competitors advancing faster.

Elements imported from Figma frequently break or don't render correctly. Users report vector items not importing properly, layer effects disappearing, shadows breaking the prototype, hidden layers becoming visible, and grouped layer positions changing unexpectedly. The import workflow adds significant friction to the design process.

Fonts become tricky when sharing prototypes with remote users. There's no embed system for fonts, so collaborators may see incorrect typography unless they have the same fonts installed locally. This affects design fidelity during reviews.

ProtoPie Studio becomes very laggy with large or complex prototypes, even on high-end machines. Users report saving issues, unexpected crashes, and the desktop interface becoming cramped with the sidebar. Large prototypes with 50+ scenes are particularly problematic.

Recent releases have been buggy, with some versions crashing within seconds of running prototypes. Users report UI/accessibility bugs and inconsistent behavior. The software requires frequent updates that sometimes introduce new issues.

ProtoPie only supports Wear OS for smartwatch prototyping, completely excluding Apple Watch users. This is a significant limitation for designers working in the Apple ecosystem, forcing them to use alternative tools for watchOS prototyping.