Easily compare the costs of newsletter platforms
I've been writing on Substack for the last year, and from the beginning I've been aware that I might want to migrate to a different platform at some point. I've been looking into the various alternatives to Substack for a while, and always found it difficult to compare costs across the different platforms. There's just too many variables that factor into the cost, and each platform has a slightly different pricing scheme. I've also been looking for the chance to try Streamlit, a Python library for making dashboards. Getting started with Streamlit was even easier than I imagined, so I ended…
In plain words
This tool helps newsletter creators compare pricing across five platforms—Ghost Pro, Buttondown, beehiiv, Substack, and ConvertKit—by inputting subscriber counts, paid subscription percentages, and expected revenue. Built with Streamlit, it addresses the difficulty of evaluating different pricing schemes across platforms with varying cost structures. It is designed for writers considering migrating from their current newsletter platform or choosing between services.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
I've been writing on Substack for the last year, and from the beginning I've been aware that I might want to migrate to a different platform at some point. I've been looking into the various alternatives to Substack for a while, and always found it difficult to compare costs across the different platforms. There's just too many variables that factor into the cost, and each platform has a slightly different pricing scheme. I've also been looking for the chance to try Streamlit, a Python library for making dashboards. Getting started with Streamlit was even easier than I imagined, so I ended up making a dashboard for comparing the costs of hosting a newsletter on each of five platforms: Ghost Pro, Buttondown, beehiiv, Substack, and ConvertKit. You can input the number of subscribers you need to support, the percentage of subscribers with a paid subscription, and the average annual revenue per paid subscriber. If anyone here is thinking of starting a newsletter, or migrating to a different platform, you might find it helpful. If you've been curious about Streamlit, you might be interested as well. There's a link to the GitHub issue tracker, so if you find anything broken or inaccurate feel free to comment here or open an issue. One thing that's interesting to see is how differently some of the pricing schemes behave at lower subscriber numbers, and lower annual revenue amounts. Someone with a large following and a large revenue base has a much different set of choices than someone with a small subscriber base and a lower ratio of paid subscribers. https://nl-compare.streamlit.app
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