Pre vs Triangles in Geometry
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pre
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Auto-renewable subscription Pre-Algebra Fundamentals comes with a 7-day free trial. After this you will be charged $4.99 a month and you can cancel anytime. Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage your subscription by visiting your iTunes Account Settings. Privacy policy: https://www.mathgalaxy.com/FQ3_Menu/FQ3_PreAlgebra_Privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Math Galaxy Pre-Algebra Fundamentals is like having an interactive textbook, with explanations, practice, games, and videos that cover all topics found in middle school math: decimals negative numbers (integers) absolute value exponents roots scientific and metric notation and operations order of operations factors and prime numbers 1 & 2-step equations systems of equations slopes and linear equations ratios & proportions similar figures direct & inverse variation percents geometry, including length, area, volume, weight, lines, angles & polygons pythagoras & right triangles basic trigonometry graphs frequency tables, mean (average) & median stem-and-leaf plots box-and-whisker plots probability patterns and sequences The concepts are presented in bite-size pieces and there is an unlimited number of practice problems, with numbers chosen randomly. By solving problems students earn robots to use in a maze game called the Labyrinth.
Triangles in Geometry
Learn the fundamentals of triangles, including types, centers, and area calculations. This app explains theorems and postulates with visual aids and includes review quizzes to test understanding.
- Triangle basics (Acute, Obtuse, Right Angle)
- Triangle centers (Centroid, Incenter, Orthocenter)
- Area calculations
- Triangle theorems and postulates explained
- Visual aids and images
- Review quizzes
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"Triangles in Geometry" is an educational app that describes the triangle basics - (Acute, Obtuse, Right Angle) and then progresses to explain various centers in a triangle - (Centroid, Incenter, Orthocenter) and Area. The app also summarizes and explains with images, triangles Theorems, and Postulates ( Proofs). Review questions (Quiz) at the end of the section has a few problems based on the triangle Theorems and Postulates.
Screenshots
Verdict
The clearest difference is price: Pre at Free against Triangles in Geometry's $1.99. Triangles in Geometry's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement 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
Pre is free to download; Triangles in Geometry costs $1.99 up front. Pre sells 1 in-app purchase, starting at $4.99 per month. Triangles in Geometry asks for nothing beyond the download.
Pre ships an update every 31 months, Triangles in Geometry every 27 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.
| Parameter | Pre | Triangles in Geometry |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 31 months | Every 27 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 14.1 — better |
| Further details — not scored | ||
| Size | 296 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Math Galaxy | Gomathy Shankaran |
In-app purchases
Pre
- PreAlgebra - Math Galaxy7 Days trial$4.991 Month
Triangles in Geometry
No in-app purchases
Questions
Is Pre free?
Is Triangles in Geometry free?
Do Pre or Triangles in Geometry have ads?
Which is updated more often, Pre or Triangles in Geometry?
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