Both services organize study online. Their current content libraries, exam coverage and result claims differ.
Checked October 30, 2026: Acely lists $149 monthly, $297 quarterly ($99/month), and $588 annually ($49/month). Our new monthly equivalents are $134, $84 and $34: $15 lower at each billing term. Full charges are $134, $252 and $408, respectively.
Acely advertises SAT and ACT preparation, a larger question library and a conditional score-improvement offer. Skill by Skill currently covers SAT with 615 original questions, two fixed practice tests and a study-guide sequence. Our current plans do not include ACT or AP courses and carry no promised score gain.
SAT®, PSAT® and AP® are trademarks registered by the College Board, which is not affiliated with, and does not endorse, this website or book. Bluebook™ is a trademark of the College Board. ACT® is a trademark of ACT, Inc., which is not affiliated with and does not endorse this website or book. Desmos is a trademark of Desmos Studio PBC.
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