"Picture this.You're buying a few things from a local vendor. They tell you the final amount after adding everything on their side. Nothing wrong with that, but you still want to double-check before paying. Just a quick addition to be sure. So you do what most people do. You open your payment app, switch to the calculator, add the numbers yourself, switch back, and re-enter the total. It's not hard. It's just a small break in focus that happens before you make an online payment."
"The real math happens in the moment. Groceries, Fuel, Quicksplits with friends, all of it happens right there, right before tapping Pay. The problem is that the flow gets interrupted every time users leave the app to do basic math. That switch takes them out of the task. It adds extra steps. It increases the chance of mistakes. Paytm solved all of that without adding "features.""
Many users leave payment apps to perform immediate arithmetic, causing context switches, extra steps, and higher error risk. A tiny plus button on the amount entry screen allows quick in-place addition, keeping calculations visible and workflow uninterrupted. Keeping math on one screen preserves context and reduces mistakes while requiring no heavyweight features. This micro-interaction removes long-standing friction and improves user experience. Expanding the keypad to include simple operators like add, subtract, multiply, and divide can handle everyday scenarios such as quantity-based totals, quick discounts, partial splits, and rounding adjustments.
Read at Medium
Unable to calculate read time
Collection
[
|
...
]