Euclidiana: LSAT Logic Prep
Daniel Winarick Education iPhoneiPadiPod touch
Euclidiana: LSAT Logic Prep is a free Education app for iPhone and iPad by Daniel Winarick. Rated 5.0/5 from 7 ratings. Requires iOS 15.1.
- Rating
- 5.0
- 7 ratings
- Price
- Free
- on the App Store
- Size
- 48 MB
- Age 4+
- Updated
- Oct 14
- 2026 · v1.6.7
Screenshots
About Euclidiana: LSAT Logic Prep
Euclidiana is the focused way to drill LSAT logical reasoning — now with a Quant Gym of quantitative reasoning practice. Built by a Psychologist and test prep specialist for serious applicants who want clean, distraction-free practice that actually moves their score. WHAT'S INSIDE • 326 original practice questions: LSAT-style logical reasoning across timed forms, plus the new Quant Gym • Start with a 7-day free trial — $0 today — to unlock every form, explanation, and drill • Every form unlocks with a single subscription • Five reasoning categories: Necessary, Sufficient, Biconditional, Mixed, and Causal (correlation-vs-causation and post-hoc fallacies) • Every answer comes with a step-by-step explanation • Color-coded stimulus highlighting shows you exactly which words trigger each logical move • Built-in Venn and causal-chain diagrams visualize each relationship • Formal logic notation (P → Q, contrapositive, etc.) shown alongside plain English • Free Logic Reference: a built-in study section covering necessary/sufficient conditions, formal notation, conditional chaining, and common fallacies • Test Mode: a true timed exam simulation with no mid-question feedback and a full answer review at the end NEW: QUANT GYM • 62 quantitative reasoning questions across four new forms: the Quant Sampler plus Quant Gym I–III, ramping Easy → Hard • Five areas: Arithmetic, Algebra, Geometry, Data Analysis, and Quantitative Comparison • The same step-by-step explanations as the logic forms — learn the method, not just the answer WHY EUCLIDIANA Most prep apps drown you in features. Euclidiana strips it down to the one thing that raises your score: pattern recognition through deliberate, explained practice. No ads. No streaks. No social feed. Just questions, answers, and the reasoning behind them. DESIGNED FOR REAL STUDY • Works fully offline once downloaded • Clean, eye-friendly dark mode • Resume any form mid-session • See your accuracy by question type to find your weak spots SUBSCRIPTION Euclidiana Pro unlocks every practice form and all explanations. Both plans start with a 7-day free trial: Monthly at $19.99/month or Annual at $99.99/year, auto-renewing. Payment is charged to your Apple Account when the free trial ends, unless you cancel at least 24 hours before it ends. Your subscription auto-renews at the same price unless auto-renew is turned off at least 24 hours before the end of the current period. Cancel anytime in your Apple Account settings — access stays active until the end of the billing period. Privacy Policy: https://euclidiana.com/privacy Terms of Use (EULA): https://euclidiana.com/terms Euclidiana is owned and published by Biolexic Labs. Questions? [email protected]
Ratings & reviews
5.0
7 ratings
What’s new
Version 1.6.7 · Updated October 14, 2026
Rewritten practice questions that read more like the real LSAT, more reliable Restore Purchases and subscription unlocking, and a clearer Apple free-trial paywall.
App privacy
The developer, Daniel Winarick, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
- Identifiers: User ID
Used for: App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction, Other Usage Data
Used for: App Functionality
Alternatives to Euclidiana: LSAT Logic Prep
Looking for apps like Euclidiana: LSAT Logic Prep? Here are 6 similar apps on the App Store. The highest rated is LSAT Showdown: LSAT Prep (5.0/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Euclidiana: LSAT Logic Prep | 5.0 / 5 (7 ratings) | Free | October 14, 2026 | |
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| LSAT Showdown: LSAT Prep | 5.0 / 5 (5) | Free | Mar 5, 2026 | Compare |
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| Premise One | 5.0 / 5 (3) | Free | Sep 18, 2026 | Compare |
| Logic Workshop | – | Free | Jan 3, 2026 | Compare |