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[Overview](/)[Free Trial](/freetrial.html)[Purchase](/purchase.html)[Get it Free](/freefull.html)[Videos](http://youtube.com/calctechllc)[Testimonials](http://calc-tech.com/wiki/index.php?title=SAT_Operating_System_Testimonials)[FAQ](http://calc-tech.com/wiki/index.php?title=FAQs_for_SAT_Operating_System)[News](/blog)[Example Problems](/blog)[Wiki](/wiki)[Support](http://calc-tech.com/wiki/index.php?title=Support)







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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") for TI-83+, TI-83+ Silver, TI-84+, TI-84+ Silver, TI-89, and TI-89 Titanium graphing calculators. You can use this app on your calculator DURING the SAT to work problems more quickly and with greater accuracy.




FAQ
[I'm really good at math. Why would I need this?](/faq.html#gen1)
[Will it work on my calculator?](/faq.html#sof1)

[Other FAQ](/faq.html) ------

Video Tutorials

[](http://youtube.com/calctechllc)
------

Testimonials
[Visit our testimonials page here](/testimonials.html?view=featured). 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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Calc-Tech LLC.
Meadville, PA  16335

Phone: +1 (814) 806-2688
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Skype: support.calctech





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