Comparison

Shabbos Clock vs My Visonic SMS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Shabbos Clock

This app provides a solution for observant Jews who wish to use their smartphone during Shabbat. It offers customizable alarms that adhere to religious guidelines, including automatic shut-off and no snooze function. The app also allows alarms to be set based on local sunrise and sunset times.

Highlights
  • Unlimited alarm options
  • Automatic alarm shut-off
  • No snooze button
  • Repeatable weekly alarms
  • Alarms based on sunrise/sunset offsets
  • Full iOS11 and iPhone X support
Features
Currently charting
Read full description

Can't part with your iPhone on the holiest day of the week? We've got the solution! Shabbos Clock is the app for every Jew who celebrates the Shabbat. Features: * Displays current time on screen. * Unlimited Alarm Options * Alarms automatically shut off after specified duration (10-50 seconds) * No snooze button to interfere with Shabbos rules. * Repeatable Alarms by Weekly Pattern * Set Alarms Based Off Of Offsets Of Your Local Sunrise & Sunset * Full iOS11 and iPhone X Support Important: For the alarm to be triggered, you must leave this application open. Closing the program or the iPhone will prevent the alarm from waking you up. Please also make sure your ringer volume is loud enough to wake you up. Make sure to plug in your device to prevent battery drain from not waking you up. Test BEFORE Shabbos to confirm your setup works. Note: If you are using an iPod Touch first generation, make sure to plug in external speakers to hear the alarm. לא יכולים להיפרד מהסמארטפון בשבת? לנו יש את הפיתרון! שעון שבת הוא אפליקציה לכל יהודי שומר שבת תכונות: *מייצג שעה נוכחית על המסך *אפשרויות שעון מעורר ללא הגבלה *שעון מעורר נכבה אוטומטית לאחר זמן מוגדר (10-50 שניות) *ללא כפתור "נודניק" המהווה חילול שבת *צילצול שחוזר על עצמו באופן שבועי *כוונו את השעון לזריחה ושקיעה של איזורכם *תמיכה מלאה ל-iOS11 ול- iphoneX חשוב: בכדי להפעיל את השעון, חובה להשאיר את האפליקציה הזו פתוחה. סגירת האפליקציה או את הסמארטפון ימנע מהתוכנה לעבוד. אנא ודאו כי עוצמת הקול של הנייד גבוהה מספיק להעיר אתכם. במידת הצורך, חברו את שקע החשמל שלא ייגמר הסוללה. בדקו לפני השבת לוודא שההגדרות תקינות. הערה: אם הינך משתמש ב-ipod Touch דור ראשון, ודא לחבר אליו רמקולים חיצוניים לשמוע את הצלצול.

About

My Visonic SMS

Remotely manage your Tyco/Johnsons alarm systems via SMS. Arm, disarm, check status, and receive instant notifications for alarms and alerts from anywhere in the world. Supports multiple panels and partitions with password protection.

Highlights
  • Remote alarm system control via SMS
  • Arm/disarm system
  • Check system status
  • Receive in-app notifications
  • Control individual partitions
  • Password protected access
Features
Read full description

Control and monitor your PowerMax/PowerG Tyco/Johnsons alarm systems from anywhere using SMS. With this App you can access your PowerMax panels from home or work or from anywhere in the world using your mobile phone. With this App you can: - Arm the system in home or away mode - Disarm the system - Check the current status of the system - Receive in-App messages (local push notifications) of alarms and alerts - Shows the live alarm status in case of an alarm/Arm Home/Arm Away/Disarm. - Rings the default ring tone of your mobile in case of alarms and critical alerts - Control individual partitions (up to 4) if the panel has been configured. - Control up to 2 panels with or without partitions. - Password protected with the same code that you use to disarm the alarm panel. Pre-requisite: To access the PowerMax/PowerG alarm system from outside the premises using SMS, your security service installer should have installed a GSM module inside the alarm panel and the GSM SIM card should have sufficient subscription/balance to send and receive SMSs. To download “My Visonic” User Manual Click here: http://visonic.in/wp-content/uploads/2016/04/My-Visonic-SMS-User-Guide.pdf

Screenshots

Shabbos Clock4 screens
My Visonic SMS4 screens

Verdict

The call

The clearest difference is monetization model: Shabbos Clock at free against My Visonic SMS's paid. Shabbos Clock also leads on review sentiment (31% vs 0%) and chart position (#186 vs unranked). My Visonic SMS's advantage is iOS requirement (9.2 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Shabbos Clock costs $0.99 and My Visonic SMS $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 7 level
Shabbos Clock versus My Visonic SMS: the parameters behind the verdict, then further details
ParameterShabbos ClockMy Visonic SMS
Price$0.99$0.99
Rating2.4 (21 ratings) — better—
Positive reviews30.9% of reviews — better0.0% of reviews
Number of ratings21 — better—
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank#186 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.09.2 — better
Further details — not scored
Size89 MB2 MB
Age rating4+4+
DeveloperRustyBrick, Inc.Neelu Jalori

Customer experience

Shabbos Clock

All ratings21 ratings
Positive28.6%
Neutral9.5%
Negative61.9%
Written reviews55 reviews
Positive30.9%
Neutral9.1%
Negative60.0%

My Visonic SMS

Written reviews5 reviews
Positive0.0%
Neutral20.0%
Negative80.0%

In-app purchases

None

Shabbos Clock

No in-app purchases

None

My Visonic SMS

No in-app purchases

Questions

Is Shabbos Clock free?
Shabbos Clock costs $0.99, with no in-app purchases.
Is My Visonic SMS free?
My Visonic SMS costs $0.99, with no in-app purchases.
Do Shabbos Clock or My Visonic SMS have ads?
Neither Shabbos Clock nor My Visonic SMS shows ads.
Which is updated more often, Shabbos Clock or My Visonic SMS?
Shabbos Clock ships an update every 4 months, and My Visonic SMS every 4 months. Most recently, Shabbos Clock was updated on October 24, 2026 and My Visonic SMS on October 8, 2026.

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