The Shabbos App addresses all of the potential halachic issurim that can occur when using a smartphone on Shabbos. Below is a brief synopsis of how the Shabbos App resolves the problems.

  • Uvdah D’chol: When the Shabbos App is activated, the screen is flipped upside down and locked in that mode, so that a user would hold need to hold the phone in the opposite manner that it is held during the weekdays. This is a very distinctive difference in how the phone is used – as (a) on a regular weekday nobody would hold the phone upside down (b) the telephone is awkward to use as the speaker is on the bottom and microphone on the top so holding the phone in this manner is definitely “a shinui”. Most importantly, while messaging in the Shabbos App completely different than the regular keypad.

  • Writing: The Shabbos App features a unique keyboard that works differently from the keypad that a user would use all week. The keypad is replaced with complete words. A user is able to create a sentence using a combination of words included in the app (120) and can add an additional 30 custom words for a total of 150 word choices. This is not Kosaiv as Kosaiv only applies to creating a word, not to taking existing words and forming a sentence.

  • Sounds: All sounds are disabled when the app is active. The user can choose to receive a vibration for new notifications or visual indicators, or both vibration and visual. The visual indicator on the information bar will display any new notifications.If there are alarms set before Shabbos to ring they will continue to work.

  • Screen: The app forces the LED backlight of the screen to stay actively lit the entire Shabbos on 1% brightness (this is a very small drain on the battery and will not cause the battery to drain over Shabbos) once the user touches the screen the  brightness will change to the preset brightness for use. This function of keeping the backlight on at 1% the entire duration of  Shabbos inhibits any potential issur derabonan of turning the screen on and off.

  • Misuse: When the Shabbos App is active all functions of the phone are blocked except for the integrated Shabbos App messaging app and ebooks. In the future we will introduce additional modules that will enable more features in a permissible manner.