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Inbox Reads
Reletter
Amazing Newsletters
Newsdrop
CrossPromo Club
Hecto
The easiest way to grow your newsletter. Find emails to cross-promote with, find newsletter sponsors and create collections of your favourite newsletters in one place.

Compute various size metrics for a Git repository, flagging those that might cause problems - github/git-sizer

Which is more popular?
Based on our record, git-sizer seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | crossletter.com | github.com |
| Pricing | — | |
| Company | Startup from South Africa · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


CrossLetter - The easiest way to grow your newsletter through real partnerships. Growing a newsletter is hard. Paying for ads gets expensive fast, and organic social is a grind that feeds someone else's algorithm. Cross-promotion — recommending each other's newsletters to aligned audiences — is...
No description of git-sizer 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
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CrossLetter and git-sizer.
CrossLetter's answer
We're not a vibe-coded stack. We've hard-coded all tech around React and NextJS frameworks within Vercel, and use RadixUI and Tailwind CSS UX elements for optimal user experience. We're also integrated into Beehiiv for all automated communication and newsletters
CrossLetter's answer
Most newsletter discovery platforms either try to automate the relationship or take a cut of the transaction. CrossLetter doesn't do either. It's a discovery layer — you find aligned newsletters, you reach out directly, you build the partnership on your terms. No algorithm matching you to whoever paid the most. No middleman fees. Just a clean directory of newsletters that are actively open to collaboration and sponsorship.
CrossLetter's answer
Because it's free, it's simple, and it doesn't try to own the relationship. Competitors tend to either gatekeep introductions behind a paywall, or automate the process so heavily that you lose the personal connection that makes cross-promotion actually work. CrossLetter gives you visibility and gets out of the way. That's it. That's the product.
CrossLetter's answer
Newsletter creators and independent publishers looking to grow through partnerships rather than paid ads. That includes solo creators running niche newsletters, media brands exploring sponsorship channels, and marketers who understand that reaching someone else's engaged audience is worth more than buying clicks from a cold one.
CrossLetter's answer
It came from lived frustration. The founder — Des Brown — both runs newsletters and keeps running into the same problem: finding cross-promotion partners was scattered, manual, and unnecessarily difficult. So they built the tool they wished existed. Nothing more complicated than that.
CrossLetter's answer
CrossLetter is free, so "customers" isn't quite the right framing — but the platform hosts a growing directory of newsletters across niches like marketing, tech, business, creator economy, and personal development. The value isn't in big names — it's in the quality of the matches people find. Users like AI Central, Presidential Summary and others with more than half a million+ subscribers already trust CrossLetter for their cross-promotion and sponsorship growth
Share your experience with using CrossLetter and git-sizer. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking CrossLetter since May 2026.
Also there’s a cool project from GitHub you can use to help understand the size of git’s objects in your git repo https://github.com/github/git-sizer. This might help you determine what the best cloning strategy could be. Source: about 5 years ago
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The newsletter cross-promotion tool that grows your subscribers automatically. Share one link to join our cross-promotion network, then however many subscribers you send to others, we'll send the same number back - fair, simple, automatic.
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