There is
https://xaddress.org1) Opensource and free
2) Can be used offline
3) Designed to be used in low tech environments and decoded by hand
4) Multilanguage
5) Error correction incorporated with visual avatar.
6) Short code for storing or linking.
7) Works with any map.
8) Yow know is an address when you see it.
-----------------------------------------
Here is a comparision side by side of each option
For GPS : -6.7184 , 129.5080
XADDRESS: 7150 Magical Pearl - Maluku, Indonesia
WHAT3WORDS: percolator.surmount.retooled
GEOHASH: qyu1g0by7
MAPCODE: VQ6.1MFD
OPENLOCATIONCODE: 6Q5F 7GJ5+J6
-----------------------------
Article about it:
https://medium.com/hackernoon/an-algorithm-that-can-give-an-...
Github:
https://github.com/roberdam/Xaddress
(Disclosure: im the creator of Xaddress.)