Rubber Duck
Rubber Duck is a pre-submission app-review scanner designed to help developers avoid rejections from the Apple App Store by catching common issues before submission. Developers upload their compiled app, and Rubber Duck runs automated scans followed by human QA, testing real device compatibility (including older iPhone models), verifying in-app purchase (IAP) flows, checking for missing metadata or placeholder content, detecting crashes on launch or during use, and ensuring privacy-policy and data-collection compliance. Within about four hours, users receive a detailed “Duck Report” listing every detected issue with severity ratings and exact repro steps, enabling them to fix problems before submitting to Apple. Scans are run in a secure, isolated sandbox; uploads are encrypted in transit and at rest; the compiled binary is the only thing analyzed (not source code); and builds are automatically deleted after 30 days (or sooner on request).
Learn more
Papera
Papera is an AI notebook that thinks with you, generating structured notebook pages from simple prompts so users can spend less time formatting and more time thinking. Instead of starting from a blank page, users describe what they need, and Papera builds a fully designed, editable notebook in seconds. It features real paper textures, including lined, dotted, hex, and isometric styles, along with more than 22 interactive blocks such as Kanban boards, mood trackers, priority matrices, habit trackers, Cornell notes, Eisenhower matrices, study planners, assignment trackers, brain-dump organizers, meal planners, grocery lists, reading logs, travel itineraries, chore charts, teacher planners, and gratitude journals. Papera is designed to remove the friction of drawing tables, setting up layouts, and turning scattered thoughts into a usable structure.
Learn more
Daybook
The next-generation Journal safeguards your memories and helps you to reflect upon past experiences, and analyze and improve yourself. Beautifully designed to be easy to use and sync across multiple devices. Create, read out and search journal entries through Alexa, Google Assistant, and Bixby. Daybook is a free, passcode-protected personal diary, journal, and notes app for IOS. Daybook helps to record activities, experiences, thoughts, and ideas throughout the day. It lets you organize your created diary/journal entries or notes from the past in the easiest way. Daybook enables you to write a private diary, memoir, journal, and notes in the most natural way and record memories in an organized manner. Supports guided journal for tracking mood and activities, Mental Health Journal for managing stress and anxiety, Gratitude journal, self-improvement, and more. Gather insights using a mood analyzer from your activity log & mood log.
Learn more
ScienceDirect
From foundational science to new and novel research, discover our large collection of Physical Sciences and Engineering publications, covering a range of disciplines, from the theoretical to the applied. Explore our wide selection of Life Sciences journal articles and book chapters featuring original research, insightful analysis, current theory and more. Keep up to date with health and medical developments to stimulate research and improve patient care. Search our books and journals covering education, reference information, decision support and more. Discover our large collection of social sciences and humanities journals and books, highlighting historical context, current developments, theories, applications, trends and more. Elsevier encourages authors to share their research data when submitting a manuscript. Some examples of research data are raw data, processed data, software, and algorithms.
Learn more