Alternatives

Products that do what eInk device that stops kids and flatmates from barging-in during calls does

1. 1
   Callblock▲204

   The first app to block telemarketers automatically in iOS

   2017

2. 2IV
   I’ve built an IoT device to let my family know when I’m in a meeting▲121

   2025 · nullonerror.org

3. 3
   Radio Silence▲259

   Monitor & block apps that make unwanted network connections.

   2016

4. 4
   Ignore No More▲75

   Lock your child's phone until they check-in

   2014

5. 5
   Dasha Assistant▲154

   Stop every spam call, no matter who is calling

   2020

6. 6CE
   Call emails, not phones▲71

   2014 · dialzoo.me

7. 7
   Callr▲113

   Connect to your call on time without lifting a finger

   2014

8. 8
   Ex Alarm▲107

   An app that calls your ex if you don't get out of bed

   2014

9. 9CC
   Cold Call Manager▲57

   2014 · coldcallmanager.com

10. 10IB
    I built a "Do not disturb" Device for my home office▲99

    Jan 2026 · apoorv.page

11. 11FE
    Firewall – Extreme Robocall Blocker▲16

    2019 · apps.apple.com

12. 12AM
    A machine that detects when you text and drive then shocks you [video]▲66

    2021 · youtube.com

13. 13
    MyHumans: Spam Call Blocker▲69

    Stop 100% of spam calls

    2019

14. 14PF
    Privacy-first home security on mobile with smart alerts▲51

    2021 · ai-cam.app

15. 15MA
    MobSquid, an SDK that makes it easier to interpret phone sensors▲28

    2011 · mobsquid.com

16. 16UT
    Upcall – Triggered Human Phone Calls▲47

    2018 · upcall.com

17. 17SA
    Slack app to schedule messages so you don’t harass people this week▲16

    2020 · messagethemlater.com

18. 18AB
    Auto-block personal events on your work calendar▲13

    2020 · lifeworkcalendar.com

19. 19CS
    Call Screening app that ends robocalls forever – CallHero▲10

    2019 · getcallhero.com

20. 20AA
    An anonymous app to vent, chat, and see others do the same in real-time▲13

    2021 · testflight.apple.com

21. 21BA
    Bubbles - An option for people who don't want to write emails.▲22

    2012 · bubbleideas.com

22. 22B
    Blockify▲18

    2012 · blockify.me

23. 23DA
    Dial-A-UPC – A barcode telephone directory service▲17

    2017 · blog.semantics3.com

24. 24BS
    Buzzer Server – Apartment Intercom? Buzz People in with Phone▲8

    2014 · github.com

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