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Jonathan Li
Creator of the free ACT app ThirtyPlus.
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ThirtyPlus
The best FREE ACT prep app with personalized intelligence.
Jul 2026
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Joined Product Hunt
July 27th, 2026
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Jonathan Li
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1d ago
ThirtyPlus - The best FREE ACT prep app with personalized intelligence.
Adaptive ACT prep with a deterministic intelligence engine that tracks real concept mastery, recommends the highest-impact next mission, and explains every answer without an LLM.
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