Alternatives

Products that do what The Red Line does

Call Republican senators in russian so they'll listen to you

1. 1
   Krisp for iOS▲360

   Have noise-free meetings and phone calls anywhere

   2020

2. 2IM
   I made a tool to communicate data using the PC speaker▲189

   Hi HN, r2t2 is a command-line tool for transmitting data through sound using the PC speaker on the motherboard. The name of the tool is a reference to the R2-D2 robot from Star Wars :) In short, you type some message and it gets FSK modulated and transmitted via sound through the PC speaker. Note that this is the speaker/buzzer that you connect to the motherboard and not the regular speakers that you connect to the sound card. I also made a simple web page that listens to the sound emitted by r2t2 and decodes the received messages. The page can be used by simply opening it on your phone…

   2021 · github.com

3. 3
   Roll Call▲343

   Free and reliable audio calls for everyone

   2016

4. 4
   RTranslator▲170

   Open-source and offline simultaneous translator for Android

   2024

5. 5
   Redirect Russia▲174

   Block Russian traffic on your website to support Ukraine

   2022

6. 6
   Voice Bridge▲182

   Receive your landline calls on your mobile.

   2016

7. 7
   Limeline▲180

   Let AI take all your online meetings

   2023

8. 8
   Phone Call Translator▲364

   Translates your voice calls into 29 languages in real-time

   2020

9. 9
   Real-time Voice Translation by Byrdhouse▲233

   Translate your live events and meetings into any language

   2024

10. 10
    Sales Dialer for iOS▲129

    Make more calls, close more deals with powerful sales dialer

    2023

11. 11
    Hitch.ly▲142

    Turn any URL into a phone number you can call or text

    2015

12. 12
    Dial Congress▲73

    Quickly and efficiently get in contact with your legislators

    2017

13. 13
    Pizza to the Polls▲154

    Send pizzas to polling places with long lines.

    2020

14. 14
    CallParty▲86

    Voices heard better together

    2017

15. 15
    Transcriberz▲201

    Converts WhatsApp voice note into text

    2022

16. 16
    Call Your Reps▲75

    We make it easy to find & call your members of Congress.

    2017

17. 17
    FireRTC▲77

    Intelligent browser-based caller (w/ free US calls)

    2014

18. 18
    CleanTimeline▲147

    Your Twitter timeline without any distractions or ads

    2018

19. 19
    Transcriber▲221

    Transcribe any audio/video to text in minutes

    2018

20. 20
    ClawdTalk▲218

    Your Clawdbot's first phone number.

    Feb 2026

21. 21
    EchoScribe▲114

    Telegram bot that transcribes voice & video notes to text

    2023

22. 22
    Terrakotta▲120

    AI web-phone designed for cold outreach

    2024

23. 23
    Goodcall▲107

    A free 24/7 intelligent phone assistant for local businesses

    2021

24. 24
    Rhombus▲86

    Conversational Commerce as a Service

    2015

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