Apps like Rabbeinu Tam

Here are some great alternatives to Rabbeinu Tam by Elyahu41 :
Zman: The Ultimate Zmanim App
Zman: The Ultimate Zmanim App
★4.8
Tfilon - A smart Siddur
Tfilon - A smart Siddur
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Hebrew Calendar
Hebrew Calendar
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CalJ Jewish Calendar
CalJ Jewish Calendar
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HebDate Hebrew Calendar
HebDate Hebrew Calendar
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Badí' Calendar & Qiblih
Badí' Calendar & Qiblih
★4.8
RustyBrick Siddur - סידור
RustyBrick Siddur - סידור
★4.8
Daylight Clock: Sunrise/Sunset
Daylight Clock: Sunrise/Sunset
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Calendar
Calendar
★3.8
Sunrise
Sunrise
★4.8
Sun and Moon
Sun and Moon
★3.7
Sunrise Sunset Calculator
Sunrise Sunset Calculator
★4.3
Sunrise & Sunset
Sunrise & Sunset
★4.0
WLC Biblical Calendar
WLC Biblical Calendar
★4.4
Shabbat & Holiday Times
Shabbat & Holiday Times
★4.3
Widget: Sunrise & Sunset Times
Widget: Sunrise & Sunset Times
★4.1