Build flowcharts that create real value(s).

Calculate unit output, costs, time, or any other value right inside your diagram.

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Desktop Only

It's time to see your numbers in context.

It's time to see your numbers in context.

DEFINE
BUILD
COMPARE

Let's build some solutions.

See Real Numbers At Each Node

With a flowchart that handles values at each node you’ll get a much more useful understanding of where your process works and where it can be improved.

Easy To Use Functions

Functions in Proof use the most common scripting format out there. Basic functions are a breeze but more complex logic is clean too. The large function library covers arithmetic, statistical, trigonometric, and other categories.

Compare Scenarios Quickly and Easily

Proof supports working with multiple values at each node, so replacing a single value with an array gives you instant multi-scenario simulations.

All Browser and Cloud

There's nothing to download or install. That also means new features, bug fixes, and security updates happen automagically with no effort on your part. It just gets better and better.

Free Personal Teams
$8 per month $12 per month
Try It Out! Get Started Get Started

All Flowchart Tools

Save Up To 10 Documents

All Flowchart Tools

Unlimited Documents

Share and Import Public Documents

Import Data from Google Sheets API

Publish Live Documents to the Web

All Flowchart Tools

Unlimited Documents

Share and Import Public and Private Documents

Create and Join Teams

Pricing

Free
Desktop Only
All Flowchart Tools
Save Up To 10 Documents
Personal
$8 / month
All Flowchart Tools
Unlimited Documents
Share and Import Public Documents
Import Data from Google Sheets API
Publish Live Documents to the Web
Team
$12 / month
All Flowchart Tools
Unlimited Documents
Share and Import Public and Private Documents
Create and Join Teams