Custom Formulas vs Histree

This app is easy to use, but unlike simpler apps, multiple entered values can be fed into multiple formulas and multiple output values can be displayed. The output of one formula in a group can be fed into the next by using the same variable name. Related formulas can be grouped into categories to make them easy to find. e.g. Maths formulas, Surveying formulas, Loan interest formulas etc. The order of variables displayed to the user can be changed, as can the number of decimal digits of precision shown in the output fields. You can easily share formulas with other users of the app by emailing them. Three example formulas are pre-installed with the app. In order of increasing complexity they are: slope percentage, compound interest, and point scale factor.

Histree turns history into a living, branching tree you can explore, grow, and make your own. Instead of a flat list of dates, Histree lets you see how events connect across time. Plant a root event, branch out into the people, discoveries, and turning points that followed, and watch your timeline grow into an interactive tree of history. KEY FEATURES: - Branching Timelines: Build tree-shaped timelines where every event can sprout new branches. Trace lineages, causes, and consequences at a glance. - World History Library: Explore the histories of countries like Korea, Japan, the United States, and France, organized era by era, and import their events straight into your timeline. - Build Your Own Timeline: Start a personal timeline and map your own life with categories like milestones, family, education, career, and travel. - Add Your Own Events: Create custom nodes with titles, years (BC supported), descriptions, lineages, and color-coded categories. - Search & Organize: Filter events instantly and keep complex timelines clear and navigable. - Calendar Sync: Sync timeline events to your device calendar and set reminders so history stays close. - Location-Aware: Discover events that happened near you. - Add Photos: Bring events to life with images from your photo library. Whether you are a student, a teacher, a history lover, or just curious how everything connects, Histree gives your understanding of the past the branching structure it deserves. Start your lineage today and grow your own tree of history. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/