Digital Gabbai by Moshe Berman Is On Sale

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If your shul or yeshiva is in the market for a digital zmanim display, now’s the time to buy. The sale also makes Gabbai affordable for your home.

Gabbai for iPad is a easy way to keep your congregants informed. Install the app on your iPad, mount it in a public place, and let Gabbai app take over.

Gabbai can display as many announcements as you like, and it’s smart about it. It can figure out zmanim based on where you are. Just set up your location on first launch, and that’s it. Gabbai also works without an internet connection, so you never have to worry about maintaining an internet connection.

Weekly events, such as candle lighting, the Parasha, and Motza’ai Shabbat can be displayed. You can, of course, change what rabbinic opinion your congregation follows for any announcement.

Seasonal modifications to prayer, such as Morid HaGeshem and Ya’aleh Veyavo are also included. Gabbai knows what each Nusach follows, so just choose which custom you follow, and Gabbai will get it right.

Gabbai app also keeps track of  Yahrtzeits, so you can enter them, and they’ll automatically show up on the correct day. It’s really simple to help your congregants remember their loved ones.

Announcements can automatically show and hide, based on the day of the week, or year. If Gabbai doesn’t support the announcement you want, you can make your own custom announcements.

To make Gabbai app match the interior of your synagogue, you can choose one of three wood themes. You can also control other visuals, such as how long each announcement is shown, if announcement changes should be animated, and what direction to use for the animation.

The story behind Gabbai app by its developer Moshe Berman

“Gabbai began as a personal project of mine. I watched the iPad keynote in January 2010, and I had this great idea. I wanted to hang the iPad in every shul, and use it to show announcements and zmanim.

The concept isn’t new. Synagogues all over New York (and worldwide, I’m sure) have computerized displays which calculate prayer times and such. Figuring these things out is complicated, unless you have a calendar to refer to – or a computer. There are LCD based solutions being sold, but they’re prohibitively expensive, so if you see a computerized display today, it’s probably been donated. The idea was to make this both beautiful and affordable. At the risk of sounding cliche, that was my vision.

I spent the summer after 12th grade working upstate, doing video in a summer camp, and had the opportunity to speak with an individual who ended up paying for an iPad for me to work with. I began by making a prototype with HTML, just to be sure that the iPad was indeed the right size. I stuck some text on the screen, formatted it roughly the way the final product was to look, and had a friend hold it at the right height across the room. After trying it, I was convinced that I had hit on something.

I figured that if I had a laptop, I’d knock off the project in a month or so, and start selling it. One cold Saturday night in October 2010, I went with a friend to the Apple Store and picked up a white plastic MacBook. I remember unpacking it in the back of a taxi, and enjoying the “new Mac” smell.

Although I had a prototype and a laptop, the hard part was still yet to come. The primary function of the app involved a lot calculations which I was totally unfamiliar with. Luckily, I’m not the first Jewish programmer, others have written the necessary code before me. I discovered Eliyahu Hershfed’s KosherJava library. The trouble was, the iPad runs a programming languages called Objective-C, and KosherJava was written in, well, Java. I set out to translate it.

The translation of KosherJava was an interesting project all by itself. I learned a lot of things about the Jewish calendar just by reading Eliyahu’s code. I spent much of my summer weekends in 2011 translating the code. Eliyahu was kind enough to answer emails, spend time on the phone, and be generally supportive of my efforts. (The results of the endeavor are available online.)

During the first year of Gabbai’s development, I spent some time in a Yeshiva in Bayswater, New York. I showed working demos to friends, neighbors, and some family that I had in the area. They had some great feedback, much of which has helped shape the final product. However, that was over a year ago.

Time was flying by and I was beginning to get nervous. The app was supposed to be finished in a month, but that deadline had gone to the wind. I left Yeshiva and started college. I began moving on to other projects, but every now and then, I’d open up Gabbai and make some changes to it.

I regained focus in August of this year, when I started using a website to track my progress. Few weeks ago, I submitted Gabbai to Apple for review. Two days ago it has been approved  and I can finally realize my vision of an iPad on the wall in every shul in North America.”

It’s very good idea and looks like  a great and useful app. We will be grateful to hear from the first users. (more apps by Moshe Berman – here)

App:  Gabbai by Moshe Berman




Compatible: iPad only
Category:   Lifestyle
Updated:  July 05, 2013
Publisher:  Moshe Berman
Regular Price:  $299.99  -> sale price: $49.99 (buy app)


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