NOT ON THE LIST IN 2025
Threema end-to-end encrypts all your communications
Website: threema.ch
Rankings in the previous surveys
| 2024: – | 2023: – | 2022: – | 2021: – | 2020: – | 2019: – | 2018: – | 2017: 131 | 2016: – |
| 2015: – | 2014: – | 2013: – | 2012: – | 2011: – | 2010: – | 2009: – | 2008: – | 2007: – |
