HOW IT WORKS

Get started quickly.

Idea to app, in minutes.

Select a template

Start with a pre-built app from our library

Make it your own

Connect your own data and edit the formulas

Customize your interface

Choose and design your input fields

Visualize their results

Add charts, graphs, and metrics

Enhance their experience

Create easy-to-understand defaults and options

Launch your app

Share, publish, embed, or run it from anywhere

platform features

Power and flexibility

Summit has everything you need to build, launch, and host your app.

Expressive functions

Easy-to-use, spreadsheet-like syntax for representing almost anything, from simple arithmetic to complex simulations.

WYSIWYG designer

Add charts, input fields, defaults, colors, and custom formatting with a simple, familiar interface.

App versioning

Ready to launch? Ship a stable copy of your app while continuing to experiment and develop updates.

Hosting & API access

After launching, Summit hosts your public and private apps, including an API endpoint to run the app remotely.

Why makers love Summit

Rapid development

Low maintenance

Programmatic access

Building complex, time-based models is easier in Summit than anything else I've ever used, especially raw code.

Aaron Francis, Marketing Engineer

Succinct, powerful, and expressive

Meet SEL (Summit Event Language), a tiny but powerful language that puts the power of simulation at the fingertips of anyone that can use a spreadsheet. With a simple, declarative syntax, Summit developers can define the small parts of any system or calculation. Click 'Run' and your simulation comes to life, making light work of the most daunting algebra, word problems, and models.

An API for every app

Deploying an app in Summit isn't the end of the road. Two clicks exposes a secure, token-based endpoint that takes the parameters of your app and returns results in JSON format. Call your app with dynamic inputs from any other code or low-code web application.

Calendar functions

Summit speaks calendar and time-based functions fluently. Instantly calculate anything that repeats at any frequency. Don't miscalculate a February ever again.

Low-code, low maintenance

Because Summit's scripting language is accessible for spreadsheet users, updates and changes can be made with zero engineering involvement. Need to update the numbers, rates, or assumptions of your app? Click, edit, and re-deploy.

Commit, clone, and revert

Every Summit app uses git-style version history and commits to ensure that your end users and API calls are working against a stable code base. Makers can experiment, revert, and clone their apps with no interruption in service.

Your Low-Code Canvas

for Numerical Data

A Whiteboard That Does Math

Summit unlocks your spatial reasoning. Describe complex calculations as easily as drawing boxes and arrows.

Real-World Modeling

Our world is full of cycles, constraints, and feedback loops. Thanks to its simulator core, Summit handles these with ease.

Growth, Linear and Exponential

Forecasting is second-nature thanks to Summit's simple syntax for compounding, linear, accelerating, and decelerating growth rates.

Stay in the Flow

As you make changes to your formulas, a data table automatically updates with the output of your app.

Time is the X-Axis

Time is a native dimension of all Summit apps. Effortlessly chart, group, and sort your output by any time interval.

Sync with Remote Datasets

Insert data from a connected data source by typing a dollar-sign into any of your calculations.

Structure that Communicates

Unlike spreadsheets and text-based code, Summit's visual editor brings the formulas and functions of your model to the surface, keeping it legible and extensible.

Keyboard Shortcuts

Summit's editor includes a growing list of keyboard shortcuts to make common actions instantaneous.

Testimonials

What Makers Are Saying About Summit

Aminert

@aminert

May 20

Summit really makes sense. It's a no code way to build data apps. Define the logic on the board, then you can render the layout which ever way you like.

Siqi Chen

@blader

Nov 30

Really admire the modeling tool that Matt is building at @usesummit

Jane Portman

@uibreakfast

May 13

Proud user of @usesummit here. Congrats on the launch

Peter Suhm

@petersuhm

Apr 14

Spinning up "simple" models in @usesummit is seriously so awesome. Nothing else like it!

Tim Wilson

@actualTimWilson

Feb 1

Loving the power and flexibility you’re building into Summit!

Ruben Gamez

@earthlingworks

Aug 5

Gotta say, getting SignWell lead data coming in with metered pricing automatically calculated by the @usesummit API is veeery cool

Christine Rico

@CFOonSpeedDial

Jul 6

I just visited Summit for the first time 🤯

Nick Bergson-Shilcock

@nicholasbs

Dec 16

I just started playing with @usesummit and it is a remarkable piece of software. It's the first "spreadsheet replacement" (and graphical programming language) I've tried where it's not just cool but obviously useful, generative, and better at (some) things

Nathan Clark

@NathanClark_

Jan 18

This is an incredible product. Easily the most interesting piece of software I know of being built and I am loving following along as it develops.

Hans-Kristian Bjerregaard

@FlotFyr86

Jul 4

Damn imagine if MS had done this decades ago! I love how the product is becoming a true powerhouse.

Twitter share image - Hans-Kristian Bjerregaard

Tiffani Ashley Bell

@tiffani

Jul 3

This looks amazing. Just signed up

Anthony McClosky

@amcclosky

Feb 3

I’m really enjoying exploring what an app developer experience for @usesummit could be. Adding model-based features to an app or site just got a lot easier

Liam Smith

@LumSmith

Jan 23

Have been playing with Summit and my head has exploded.

See all testimonials

Ready to make your first app? Getting started is easy.

Get Started ->

The Platform

for Low-Code

Calculators.

Forecasts.

Simulations.