
Instrumentl
Grantable
GrantMind.pro
FindGrants
OpenGrants
Fundify
Blackbaud CRM
Accelerate your grant writing with an AI copilot that learns about your organization and the grant opportunity to craft goal-aligned responses to win funding. Our grant writing AI-powered software helps teams win funding faster.

Magnet Window Manager
Moom
yabai
BTT Remote
Homebrew
AppCleaner
Mizage Divvy
Window management app based on Spectacle, written in Swift.

Which is more popular?
Based on our record, Rectangle seems to be more popular. It has been mentioned 480 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | grantboost.io | rectangleapp.com |
| Pricing | ||
| Company | Startup from the United States · 1 - 9 employees · 2023 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


What Is Grantboost? Grantboost is the foremost AI-powered grant-writing software for Nonprofits. Our mission is to empower Nonprofits to win funding from opportunities they’re aligned with. Our software is designed to help you draft answers to grant application questions quickly and confidently....
No description of Rectangle yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Rectangle is recommended for macOS users looking for a straightforward, lightweight solution to manage application windows. It is particularly beneficial for those who frequently work with multiple applications at once, including developers, designers, and anyone who values a tidy and organized desktop environment.
Walkthroughs and reviews on video.
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SKYWALKER RECTANGLE TRAMPOLINE REVIEW!!!
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Grantboost and Rectangle.
Grantboost's answer
Brand and Voice in responses, Best practice templates, unlimited AIeasy to use interface, big emphasis on privacy (we don't sell your data, share it or have access to it in any way).
And the best value at the best price 🙂
Grantboost's answer
We're building solely for our customers. The people who purchase our product know that we're building an easier grant writing experience and we will literally run through a wall to help them solve their grant writing problems
Grantboost's answer
Nonprofits, small businesses, social impact teams
Grantboost's answer
When we started Grantboost, we had no idea what we wanted to build. All we knew is that we wanted to make a meaningful impact on the world. Our company is dedicated to enabling social impact teams with the power of AI. We understand the unique challenges nonprofits and social enterprises face and are committed to providing solutions that help you drive change.
Share your experience with using Grantboost and Rectangle. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of Grantboost yet. Be the first one to post
Rectangle shows that you don’t need to dip into your bank account to get window resizer tools. This free Mac window manager lets you manage multiple windows using keyboard shortcuts, menu options, or by dragging and...
Most window manager apps for Mac support multiple monitors. They can help you move windows between screens and create custom layouts for each monitor. Many window manager apps – such as BetterSnapTool, Magnet, and...
However, it might take some time for you to get used to the shortcuts in the Rectangle app since there are many. Furthermore, you can also add some of your apps to exceptions if you want to keep them away from...
Recommendations tracked on public social media and blogs since March 2021.


Tracking Grantboost since Aug 2025.
Rectangle solved my macos window management annoyances. https://rectangleapp.com/ Not involved in dev of this, just a happy user. - Source: Hacker News / about 2 months ago
As a both old Linux and now decade user of MacOS, after I got used to no middle-click paste and no focus-follows-mouse: 1. Keyboard shortcuts are Emacs, Ctrl-A: start of line, E: end of line, K: kill selected or to end of line, Y to... - Source: Hacker News / 6 months ago
Every macOS user uses Rectangle.app — https://rectangleapp.com The ones who don't use it is because they don’t know it exists. - Source: Hacker News / 6 months ago
When comparing Grantboost and Rectangle, you can also consider the following products.

Easily find and apply to scientific grants
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Grantable is an AI-native grant writing and management platform. Write grant proposals with an AI coworker that remembers your organization, discover aligned funders from 990 data, and manage your full grant lifecycle.
Compare Grantable to Grantboost or Rectangle:

Move your mouse over the green zoom button in any window, and Moom's mouse control overlay will appear (as seen in the above animation).
Compare Moom to Grantboost or Rectangle:

Find the right funders, qualify the ones worth chasing, draft and pre-score proposals, and track every deadline through to funded dollars. A system for winning grants, not a database, not a writing tool.
Compare GrantMind.pro to Grantboost or Rectangle:

A tiling window manager for macOS based on binary space partitioning
Compare yabai to Grantboost or Rectangle: