BlackBird vs Second Account

BlackBird is a multi-session browser for iOS built for QA engineers and web developers who need to test web applications across different browser environments. Create isolated test profiles, each running in its own sandbox with separate cookies, localStorage, and cache. This ensures clean sessions with no data leakage between profiles. Simulate different devices, platforms, and regions by configuring: • User Agent — emulate different browsers and operating systems • Screen Resolution — test responsive layouts and viewport sizes • Timezone — validate time-sensitive functionality • Language — test localization and internationalization • Hardware Concurrency — simulate device performance characteristics Features • Fully isolated sessions using separate WKWebsiteDataStores • Multiple tabs per session • HTTP & SOCKS5 proxy support per profile • Cookie management — view, import, and export • Cloud sync across devices • Team collaboration for shared test environments • Profile folders for better organization • Browsing history per profile Built on WKWebView with full tab management and native navigation controls. BlackBird includes no third-party analytics or advertising SDKs, ensuring a private and distraction-free testing environment

Manage multiple accounts in one organized place with DualNest. DualNest lets you create separate Spaces for your work, personal, business and other compatible web accounts. Each Space maintains its own website session, making it easy to stay signed in to different accounts and switch between them whenever you need. No constant logging out. No mixing work and personal sessions. No complicated account management. MULTIPLE ACCOUNT SPACES Create independent Spaces for different accounts and purposes. Use separate Spaces for: • Personal accounts • Work accounts • Business profiles • Client accounts • Shopping accounts • Social accounts • Email accounts • Custom websites Each Space keeps its website data separate from your other DualNest Spaces. QUICK ACCOUNT SWITCHING Move between your accounts in seconds with Quick Switch. Keep a Personal Space open, switch to your Work Space, then return without repeatedly signing out and logging back in. DualNest makes managing multiple logins simple and organized. KEEP WORK & PERSONAL SEPARATE Create different Spaces for different parts of your life. For example: Personal Keep everyday accounts together. Work Separate professional websites and work logins. Business Organize business, store or client accounts. You decide how every Space is organized. YOUR OWN ACCOUNT SWITCHER Give every Space its own: • Name • Account label • Icon • Color • Category • Home website • Website mode Group related Spaces together and quickly find the account you need. PRIVATE SPACES Protect DualNest or individual Spaces with biometric authentication supported by your device. DualNest also helps protect sensitive account pages from appearing in the iOS app switcher when privacy protection is active. Your website sessions remain stored locally through Apple's WebKit technology. MULTIPLE PROFILES, ONE ORGANIZED APP Use Favorites to keep important Spaces close. View recently used accounts. Search across your Spaces. Group accounts by type. Switch between profiles without navigating through a long list every time. DualNest is designed for people managing several online identities, workspaces and account sessions on one iPhone. CUSTOM WEBSITE SPACES Need an account that isn't included in the suggested categories? Create a Custom Website Space. Enter the website address, choose an account label, customize its appearance and use it as its own independent account Space. Website functionality may vary depending on the service. Some websites may require Safari for sign-in or may offer fewer features than their native apps. DESIGNED FOR PRIVACY DualNest does not require a DualNest account. We do not need your website passwords to create Spaces. You sign in directly through the website you choose to open. You can clear website data for an individual Space whenever you want without affecting your other Spaces. BUILT FOR MULTI-ACCOUNT USERS Whether you're managing a second account, multiple profiles, separate work and personal accounts, business logins or several web sessions, DualNest gives you a cleaner way to keep everything organized. Create your first Space and make account switching simpler.