31 lines
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1.1 KiB
Markdown
31 lines
No EOL
1.1 KiB
Markdown
<!--
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.. title: Phone messaging apps comparison
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.. slug: im-services
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.. date: 2016-07-06
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.. tags: whatsapp,telegram,signal,instant messaging,messaging protocols,PesceWanda
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.. category: PesceWanda
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.. link:
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.. description:
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.. type: text
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-->
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I made this chart for a presentation at the [Berkman Klein Center](https://cyber.law.harvard.edu/)
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| | Whatsapp | Telegram | Signal |
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|-------|:--------:|:--------:|-------:|
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|Source code| closed source | open source | open source|
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|Api | none | various | library |
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|Encription protocol | state of the art | self made | state of the art |
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|Contact list location | cloud | cloud | cloud, encrypted |
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|Forward Secrecy | yes | yes | yes |
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|Database| phone storage| cloud | phone storage |
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|Backup capability | Icloud or Gcloud| builtin| none|
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|Revenue | ads (Facebook) | donation based | donation based |
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|Federation | no | no | no|
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|Alternative download location | website | F-Droid | none |
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|Uses third party services | no | no |Google Cloud Messaging |
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|Servers location | US | Russia | US |
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|Tied to mobile number | yes | yes, but nickname available | yes |
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|Desktop client | no | yes | no |
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