iSum app for iPhone and iPad

iSum is an incredibly useful app designed to help you track numbers, expenses, and time. Its simple and intuitive design allows for quick and easy usage on the go. Say goodbye to the frustration of using complex spreadsheet apps on your iPhone - with iSum, youll actually enjoy using it!

No more struggling with a computer every time you need to enter or update a few numbers. Simply take out your iPhone, open iSum, and effortlessly input your updates. Whether its tracking time, expenses, sizes, or even personal metrics like body temperature or heartbeats, iSum can handle it all. Plus, you can easily export your lists to your computer at a later time.

In this version, weve introduced the ability to track balances with negative numbers. For instance, if you lend someone money and they repay it in multiple smaller amounts, iSum allows you to keep track of the remaining balance and see when the advance will be fully repaid.

Key Features:

* Create, reorder, rename, and delete basic groups for better organization
* Quickly add numbers with ease
* Track balances by incorporating negative numbers
* Attach short notes to each entered number for additional context
* Edit the date of entry for greater flexibility
* View total sum as well as sums for the current month, last month, current week, and last week
* Calculate averages for the current month, last month, current week, and last week
* Export your data as a CSV file via email, which can be easily imported into your favorite spreadsheet application on your computer.