[hamsterbase]

You can try the desktop version first, and then consider buying it after the mobile version is released. Until iOS and Android are developed, there will be no charge.

Currently hamsterbase provides rss subscription export, you can take any cell phone rss client subscription.

https://hamsterbase.com/developer/rss/

[CoastalCoder]

Sorry, let me clarify. If I bought it, it would be for desktop use. But my first exposure to the product page and the pricing, was via my cell phone.