You can do the opposite: take the Reddit apps that aren't working anymore, do a one line change [1] (to use https://api.rings.social) and you're now able to use a Reddit client to browse Rings [2][3] - a Reddit API compatible content-voting platform licensed as AGPLv3.
[1]: https://github.com/rings-social/Infinity-For-Rings/commit/cd...
[2]: https://rings.social
[3]: https://github.com/rings-social