Omni Calculator vs Usefirst

Embeddable calculators that solve hundreds of everyday problems

Omni Calculator is a web/mobile calculator that solves concrete problems such as mortgage payment, gross margin, body mass index, break-even point, etc. It's very user-friendly, flexible and usable on web, mobile and as an embeddable web widget.

Know when you'll be worth $1 million

Usefirst predicts what wealth you can achieve by different scenarios. Then it helps you develop good financial habits, cancel unwanted subscriptions and get a free financial plan. Usefisrt helps you make your American dream come true earlier.

Location: London, United Kingdom