Tag Archives: calc

Tip Solver launches

This week, my future-inspired tip calc, Tip Solver, launched on the App Store. Not only does it help you calculate you tip, it also helps you solve for how much you are really tipping.

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As a tip calc, it’s easy to use and hopefully sleek/easy on the eyes. A key feature of this tip calculator is that it allows you to solve for your tip %. When you adjust the total or tip, you can see how much you actually tipped right away. This comes in handy when you pay $100 instead of $95, and so on.

While it’s customary to go from top to bottom when looking a receipt (for the items ordered, tax, tip, and total lines), I felt that it was better to invert the direction (to use a bottom to top approach). The reason being that your thumbs are often better able to reach the bottom (not the top) of the device. I wanted the most common action (setting the bill amount) to be in the easy to reach thumb zone.

Please check out my app if you have a moment. It’s free (with ads) and works on iPhones & iPads. If you have any feedback, you can let me know at rexfeng@gmail.com

https://itunes.apple.com/us/app/tip-solver-premier-gratuity/id1130814051

iOS Tip Calculators

I am in the midst of wrapping up a new iOS app. Wrapping up an app includes so many things that are oftentimes overlooked when it comes to developing a mobile application. From App Store screenshots, intro video, and description text, there is a lot of room to do it well (or poorly).

My new app is a tip calculator, which is by no means a new idea. The reasons I decided to build a tip calculator was that I wanted 1.) to implement modern usability improvements and 2.) have an app that is visually attractive.

Looking at the App Store, most calculator apps adopt a heavily skeuomorphic style. There is nothing wrong with skeuomorphism (in the context of aiding usability), but I wanted to build a tip calculator that is sleek and does not resemble a calculator.

Below are screenshots from the current top search results for “tip calculator” in the App Store. They are all probably decent apps that work, but I’m posting them as a reference of what the current state of tip calculator apps looks like.

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