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The SAT Operating System ("SAT_OS" or "SAT OS")

    • Our SAT app is called the SAT Operating System ("SAT_OS" or "SAT OS") and it is available for TI-83+, TI-83+ Silver, TI-84+, TI-84+ Silver, TI-89, and TI-89 Titanium graphing calculators. This app solves SAT math problems for you DURING the test. It allows you to work problems faster and with greater accuracy than you ever could by hand or with a graphing calculator alone. Its use is permitted under The College Board's official Calculator Policy.
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  • Visit our testimonials page here. We currently have over 17,000 users and students are able to improve their score on the SAT test by over 60 points (on average) just by using this software.
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All trademarks are the property of their respective owners. *SAT is a registered trademark of the College Entrance Examination Board, which was not involved in the production of, and does not endorse, this web site. *PSAT/NMSQT is a registered trademark of the College Entrance Examination Board and National Merit Scholarship Corporation, which were not involved in the production of, and does not endorse, this web site.

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