Overflow vs Rheo

Overflow lets users create, present, share, and get feedback on interactive user flow diagrams. It syncs designs from Figma, Sketch, Adobe XD, and Adobe Photoshop. Diagrams can include customizable connectors, styles, device skins, hotspots, shapes, text, and multiple boards. Users can present playable flows, self-guided Stories, and rapid prototypes. Cloud publications can be shared by link, embedded, protected with a passphrase, exported as PDF or PNG, or printed. Collaboration includes personal and team folders, editor invitations, comments, mentions, and notifications, with integrations for Confluence, Jira, and Trello. Overflow is available on macOS, Windows, and the web. Its 14-day trial requires no credit card and gives desktop-app and Cloud-sharing access without limitations. After the trial, that access ends; data remains hosted for 60 days and is then deleted if no subscription is activated. Pro costs €19.95 per user/month, billed monthly, and includes 1GB cloud storage per user, Cloud sharing, folders, and comments.

Rheo is a mobile platform for designing and changing app flows, then comparing variants without waiting for App Store reviews. Its canvas supports onboarding, paywall, win-back, and upsell journeys with branches and targeting. Teams can test holdouts and variants in flow structure, copy, and timing, and review conversion and revenue. Rheo says its inputs, layouts, animations, and system moments render natively on iOS and Android, not in a WebView. React Native is supported; Swift, Flutter, and Kotlin are marked as coming soon. After SDK integration, teams publish flows for the app to pick up. The dashboard includes flow completion measures and funnel and cohort views. Rheo Engage handles broadcasts and automations through a customer's SES, Resend, Postmark, or SendGrid account. Integrations named include RevenueCat, AppsFlyer, Adjust, and Superwall. Pricing includes a free plan and paid plans from $49.99/mo. The free plan includes 400 MAU and no experiments; exceeding an included MAU quota pauses the SDK until the next month or an upgrade.