Comparison

Unit Circle Practice vs SOH CAH TOA

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Unit Circle Practice

Master the unit circle with focused training on angles, radians, coordinates, and exact trig values. Interactive exercises and quizzes build speed and accuracy for pre-calculus and trigonometry students. Unlock advanced tools for deeper understanding and test preparation.

Highlights
  • Interactive drag-and-drop training
  • Unit circle and exact value quizzes
  • Clean unit circle guide with summaries
  • Inverse trig and angle conversion practice
  • Quadrant sign identification
Features
Read full description

Unit Circle Practice helps students master the unit circle with fast, focused, no-nonsense training. Built for Pre-Calculus and Trigonometry students, this app targets the exact skills that show up on quizzes, unit tests, and AP-style assessments — angles, radians, coordinates, and exact trig values. Practice & Learn • Interactive Drag-and-Drop Training for degrees, radians, and ordered pairs • Unit Circle Quiz to build speed and accuracy locating points • Exact Value Quiz for sin, cos, and tan recall • Clean Unit Circle Guide with swipeable concept summaries • Designed for quick daily reps and efficient test prep No distractions. No clutter. Just repetition that works. Pro Lifetime Unlock Unlock advanced training tools for deeper mastery: • Inverse Trig Quiz (principal value practice) • Angle Conversion Sprint (degrees ↔ radians speed) • Reference Angle Quiz • Coterminal Angles Practice • Quadrant Sign Identification Perfect for students preparing for cumulative exams, finals, and AP courses. Whether you’re learning the unit circle for the first time or sharpening for a big test, Unit Circle Practice gives you structured repetition that builds confidence fast. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SOH CAH TOA

Features
Read full description

Two practice drills backed by three info screens help you learn and apply SOH CAH TOA fast! Proof: My students used this app, and the scores on the test were never higher! As a bonus, they also learned it a lot faster! One drill is solving for an angle, the other is solving for a side. Each question is answered in two stages: identify the trig ratio to use, then identify the correct equation. As you continue to practice, the app keeps track of how many correct and incorrect responses you've made, your "streak," i.e., how many in a row you've had correct, and your all-time highest streak, so you can see your improvement over time! (These can be reset to zero at any time.) Also includes info screens detailing how I explain sine, cosine, and tangent to my students, which has evolved over 20+ years. Even if you know the basics, these are worth a read to see if you can pick up any new insights. Any new connections you can build around the same core information makes you stronger and faster! As everyone knows, practice makes perfect... especially the right kind of practice! By giving you instant feedback, the drills in this app not only help you learn faster but prevent you from "learning" bad information -- which is always a bear to unlearn. Get the app and use it, and you'll master soh-cah-toa in no time!

Screenshots

Unit Circle Practice4 screens
SOH CAH TOA4 screens

Verdict

The call

The clearest difference is price: Unit Circle Practice at Free against SOH CAH TOA's $0.99. Unit Circle Practice also leads on iOS requirement (16.0 vs 18.2). SOH CAH TOA's advantage is in-app purchases (none vs 1) and update cadence (every 3 months vs every 6 months). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Unit Circle Practice is free to download; SOH CAH TOA costs $0.99 up front. Unit Circle Practice sells 1 one-off in-app purchase. SOH CAH TOA asks for nothing beyond the download.

UpkeepUpdate frequency

Unit Circle Practice ships an update every 6 months, SOH CAH TOA every 3 months. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
Unit Circle Practice versus SOH CAH TOA: the parameters behind the verdict, then further details
ParameterUnit Circle PracticeSOH CAH TOA
PriceFree — better$0.99
Rating5.0 (20 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings20 — better—
Update frequencyEvery 6 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.2
Further details — not scored
Size6 MB8 MB
Age rating4+4+
DeveloperRussell ThormanLaurence Stone

In-app purchases

1 purchases

Unit Circle Practice

One-time1
  • Pro Lifetime Unlock$1.99
None

SOH CAH TOA

No in-app purchases

Questions

Is Unit Circle Practice free?
Unit Circle Practice is free to download, with in-app purchases available.
Is SOH CAH TOA free?
SOH CAH TOA costs $0.99, with no in-app purchases.
Do Unit Circle Practice or SOH CAH TOA have ads?
Neither Unit Circle Practice nor SOH CAH TOA shows ads.
Which is updated more often, Unit Circle Practice or SOH CAH TOA?
Unit Circle Practice ships an update every 6 months, and SOH CAH TOA every 3 months. Most recently, Unit Circle Practice was updated on October 6, 2026 and SOH CAH TOA on October 15, 2026.

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