Comparison

Dogl Precalculus vs Trigonometry for Beginners

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

Head to head
About

Dogl Precalculus

Master Precalculus with this app designed by university professors. It offers bite-sized problem-solving, personalized learning paths, and visual hints to guide you. Start with 100 free problems and unlock more weekly, with optional upgrades for unlimited access.

Highlights
  • Bite-sized problem-solving
  • Personalized learning paths
  • Visual hints for guidance
  • 100 free starter problems
  • Weekly free problem unlocks
  • Ad-free experience
  • AP Precalculus curriculum compatible
Read full description

Dogl Precalculus is your friendly mobile companion app, designed by university professors to help you conquer Precalculus concepts through bite-sized problem-solving. Dogl Precalculus is just getting going, and we're adding new material all the time. Accelerate your Precalculus learning with Dogl: • Practice Makes Perfect: Get 100 FREE problems to start, on any topic. Plus, unlock an additional 10 free problems every week to keep your skills sharp. • Go Unlimited (Optional): Enjoying Dogl and want to master Precalculus faster? Be one of our earliest users and get our special introductory rate on 4-month and 1-year access. • Personalized Learning: Our app adapts to your learning style, tailoring problems based on your progress. • Teacher's Eye™ Guidance: Stuck? Get visual hints that guide you without giving away the answer. • Ad-free & Privacy-focused: We don't show ads or sell your data. We rely on happy upgraders to keep the app going. • Made by Experts: Created by university lecturers who understand the challenges students face. • Compatible with the new AP Precalculus curriculum. Download Dogl Precalculus today and unlock your potential!

About

Trigonometry for Beginners

Master trigonometry with interactive lessons and exercises designed for beginners. This app offers step-by-step explanations, fun challenges, and instant feedback to build your confidence from basic angles to word problems.

Highlights
  • Tailored for beginners
  • Interactive step-by-step lessons
  • Fun and challenging exercises
  • Instant feedback on answers
  • Progressive difficulty levels
  • Covers angles, right triangles, ratios, and word problems
Features
Read full description

Learn Trigonometry the Simple and Enjoyable Way! Our beginner-friendly app is designed to make learning trigonometry engaging, enjoyable, and effective. Whether you’re starting from scratch or refreshing your knowledge, this app has everything you need to succeed. Why Choose Our App? - Tailored for Beginners: Each level is carefully designed to guide learners from fundamental concepts to intermediate trigonometry skills. - Interactive Lessons: Step-by-step explanations make each topic clear and easy to understand. - Fun and Challenging Exercises: Engage in interactive activities that make learning trigonometry exciting and hands-on. - Instant Feedback: Get helpful feedback on your answers to learn from mistakes and improve. - Progressive Difficulty: Levels gradually increase in complexity to keep you motivated and help you build confidence. What You’ll Learn Our app covers essential trigonometry topics, including: - Angles: Definitions, types, and relationships between angles - Right Triangles: Pythagorean theorem and angle measurements - Trigonometric Ratios: Sine, cosine, and tangent explained - Trigonometric Values: Special angles and their corresponding values - Trigonometry Word Problems: Apply your knowledge to real-world scenarios Start your trigonometry journey today and discover how fun and easy learning can be!

Screenshots

Dogl Precalculus4 screens
Trigonometry for Beginners4 screens

Verdict

The call

The clearest difference is review sentiment: Dogl Precalculus at 100% against Trigonometry for Beginners's 0%. Dogl Precalculus also leads on ads (none vs shown) and rating (4.8 vs 4.6). On price, ratings volume, update cadence and in-app purchases 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

Both are free to download. Dogl Precalculus sells 2 one-off in-app purchases and Trigonometry for Beginners sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Dogl Precalculus holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 34 and 33 respectively. Written reviews point the same way: 100% of Dogl Precalculus's written reviews are positive against 0% of Trigonometry for Beginners's.

UpkeepUpdate frequency

Dogl Precalculus ships an update every 6 months, Trigonometry for Beginners every 5 months. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Dogl Precalculus versus Trigonometry for Beginners: the parameters behind the verdict, then further details
ParameterDogl PrecalculusTrigonometry for Beginners
PriceFreeFree
Rating4.8 (34 ratings) — better4.6 (33 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings34 — better33
Update frequencyEvery 6 monthsEvery 5 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better17.6
Further details — not scored
Size36 MB12 MB
Age rating4+4+
DeveloperDoglAswian Editri Sutriandi

Customer experience

Dogl Precalculus

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Trigonometry for Beginners

All ratings10 ratings
Positive90.0%
Neutral10.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

2 purchases

Dogl Precalculus

One-time2
  • Unlimited Plan - 4 months$0.99
  • Unlimited Plan - 1 year$1.99
1 purchases

Trigonometry for Beginners

One-time1
  • Remove Ads$2.99

Questions

Is Dogl Precalculus free?
Dogl Precalculus is free to download, with in-app purchases available.
Is Trigonometry for Beginners free?
Trigonometry for Beginners is free to download, with in-app purchases available.
Which has better reviews, Dogl Precalculus or Trigonometry for Beginners?
Dogl Precalculus is rated higher. Dogl Precalculus averages 4.8 out of 5 from 34 ratings, while Trigonometry for Beginners averages 4.6 from 33 ratings.
Do Dogl Precalculus or Trigonometry for Beginners have ads?
Trigonometry for Beginners shows ads; Dogl Precalculus does not.
Which is updated more often, Dogl Precalculus or Trigonometry for Beginners?
Dogl Precalculus ships an update every 6 months, and Trigonometry for Beginners every 5 months. Most recently, Dogl Precalculus was updated on October 24, 2026 and Trigonometry for Beginners on October 24, 2026.

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