Data Explorer vs Octavo Reader

Explore and analyze your datasets. Find patterns within and between variables. Use industry standard statistical techniques without being a stats expert. Get plain english explanations. Data Explorer makes the world of data analysis accessible to the rest of us. Features include:: • Import data files (csv, txt, xls, xlsx) • Enter / edit data by hand • Browse your data set. Apply filters to zero in on the rows that interest you. • Get key stats on each variable and see a graph of its distribution • Variables can be numerical, categorical, or date / time. • Hypothesis tests of means and proportions. One, two, and paired samples. • Two way frequency tables of what values categorical variables take, including phi and Cramer's V statistics • See the distribution of a numerical variables broken down by levels of a categorical variable, including one-way ANOVA, box plot, and density plot • See how two numerical variables vary with each other (correlation) • Explain how one numerical variable varies by a combination of other numerical variables (linear and logistic regression) • Variable transformations. Calculate squares, logs, and other commonly used transformation for use in your regressions and correlations All analysis include: • Results are given in statistical terms and also in plain english • Put as many filters as you want on each analysis to focus in on the part of your data you're interested in Accepts data input in the following formats: • enter data by hand while in the field • import comma separated files (.csv) • import tab delimited text files (.txt) • import excel files (xls and xlsx) • Current version limited to 100,000 rows and 500 columns to be conservative about performance. Export options: • Email PDFs and CSVs of variable summaries and analysis results • Print variable summaries and analysis results • Email CSV of datasets you've entered or edited We are actively developing this app and have additional features lined up. Your feedback can influence the priority we put on different features so please let us know what matters to you!

Octavo - Academic PDF Reader for iPad Transform your academic reading experience with Octavo, the iPad-first PDF reader designed specifically for researchers, students, and professionals. Discover Papers Effortlessly Built-in arXiv browser lets you discover, search, and download academic papers directly within the app. No more switching between Safari and your PDF reader. AI-Powered Intelligence • Tap any paragraph for instant translation in your target language • Generate structured document summaries with key insights • Support for OpenAI, Anthropic Claude, Google Gemini, and Azure OpenAI • Your API keys, your control - complete privacy Smart Document Management • Bookmark important documents for quick access • Navigate through PDF outlines and chapters • Seamless file integration with iPadOS document picker • Share extension support for opening PDFs from any app Privacy by Design • Documents processed entirely on your device • Only necessary text snippets sent for AI processing • No data collection or tracking • Secure API key storage in device Keychain iPad Optimized Native iPadOS experience with full trackpad, keyboard, and Apple Pencil support. Also works beautifully on Mac with Catalyst. Perfect for reading research papers, academic journals, technical documentation, and any PDF that benefits from intelligent analysis.