Comparison

Visual Trig Func vs Photronium

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

Head to head
About

Visual Trig Func

This app visually demonstrates trigonometric functions, making them easier to understand and calculate. It offers interactive tools for exploring values, viewing wave graphs, and accessing lists of trigonometric ratios. Ideal for students and educators seeking a clearer grasp of trigonometry.

Highlights
  • Visual trigonometric functions
  • Interactive radius and angle manipulation
  • Comprehensive lists of trig ratios
  • Wave graph visualizations
  • Adjustable values via text fields
  • Tap-to-check degree and value functionality
Features
Read full description

Do you know trigonometric functions? Or want to learn it? Generally it makes people to be complicated a little, but if you use Trig Func, this will help you to more easily understand! Also this app is easy/quick to confirm the value of trig functions, so I wish this is really useful for students, teachers, developers and more! *** Features *** - Visual trig functions! - Comfortable moving for calculations! - Great lists(sin,cos,tan,csc,sec,cot) - Images for the wave graphs *** How to use it *** [ Calc ] You can drag a radius line between 0 to 90 degrees, and if you do that, it will move to be based on "Radius" and "Angle". Also you can set any numbers up to text fields with segmented buttons. Such as if you edit Text1 with "X" button and Text2 with "Y" button, the triangle view will change to be based on "X" and "Y". Which means, there are 6 cases. ( Radius - Angle ) ( Radius - X ) ( Radius - Y ) ( Angle - X ) ( Angle - Y ) ( X - Y ) [ List ] No need to explain about it. Just scroll it. Oh, wait. You can change these values if you tap column names, like below... Degrees --- Radian sin --- csc(cosec) cos --- sec tan --- cot [ Wave ] There are 2 graphs, so if you tap the button of bottom right, the graph will change another one. (sin, cos, tan) --- (csc, sec, cot) Also you can tap anywhere for checking degrees and values. I hope this app helps you, even a little bit.

About

Photronium

Access over 360 physics equations with clear explanations and powerful search tools. Test your knowledge with custom quizzes and learn offline anywhere, anytime. This educational reference is designed for learners of all levels.

Highlights
  • 360+ physics equations
  • Offline access
  • Intelligent Search
  • Symbol Search
  • Customizable quizzes
  • Bookmarking
Read full description

With over 360 physics equations explained in a clear, easy-to-understand way and a flexible search system, Photronium can be an immensely helpful tool for learners of any level. PHYSICS AT YOUR FINGERTIPS Look up any physics equation, with topics including: • Motion in One Dimension • Projectile Motion • Laws of Motion • Uniform Circular Motion • Work and Energy • Linear Momentum and Collisions • Rotation of Rigid Bodies • Universal Gravitation • Fluid Mechanics • Oscillatory Motion • Wave Motion • Sound Waves • Thermodynamics • Electromagnetism • Light and Optics • Relativity • Quantum Physics All available offline, so you can learn anywhere, anytime. MEMORY QUIZ Test your knowledge by taking quizzes! Bookmark any section that interests you, and Photronium will automatically create quizzes based on those bookmarks. INTELLIGENT SEARCH & SYMBOL SEARCH Just type anything. Intelligent Search can work with the most ambiguous descriptions, like “atom”, “lens”, “radiation”, “Newton”, and “phase angle”. And when you need to find a physics formula without any description, Symbol Search provides a discovery experience you’ve never seen before. FREE & NO ADS Photronium comes with over 360 physics equations, Intelligent Search, Symbol Search, Widgets, Bookmarks, Suggested Websites, and Dark Mode all available for free and ad-free. With Extras, you can purchase more features and support the app’s development. Have questions or feedback? From the app, open Extras and send a report.

Screenshots

Visual Trig Func4 screens
Photronium4 screens

Verdict

The call

The clearest difference is rating: Photronium at 5.0 against Visual Trig Func's 1.0. Photronium also leads on review sentiment (100% vs 61%) and ads (none vs shown). Visual Trig Func's advantage is iOS requirement (14.0 vs 16.4). On price, in-app purchases, monetization model 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

Both are free to download. Visual Trig Func sells 1 one-off in-app purchase and Photronium 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

Photronium holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews point the same way: 61% of Visual Trig Func's written reviews are positive against 100% of Photronium's.

UpkeepUpdate frequency

Visual Trig Func ships an update every 5 months, Photronium monthly. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

Scorecard6 real differences · 4 level
Visual Trig Func versus Photronium: the parameters behind the verdict, then further details
ParameterVisual Trig FuncPhotronium
PriceFreeFree
Rating1.0 (2 ratings)5.0 (8 ratings) — better
Positive reviews61.1% of reviews100.0% of reviews — better
Number of ratings28 — better
Update frequencyEvery 5 monthsMonthly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.4
Further details — not scored
Size4 MB59 MB
Age rating4+4+
DeveloperF-NET AppsHao Nguyen

Customer experience

Visual Trig Func

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews18 reviews
Positive61.1%
Neutral16.7%
Negative22.2%

Photronium

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Visual Trig Func

One-time1
  • [ Add Calculation 360! ] (You can calc trig functions for over 90 degrees.)$0.99
1 purchases

Photronium

One-time1
  • Multicolored Bookmarks$0.99

Questions

Is Visual Trig Func free?
Visual Trig Func is free to download, with in-app purchases available.
Is Photronium free?
Photronium is free to download, with in-app purchases available.
Which has better reviews, Visual Trig Func or Photronium?
Photronium is rated higher. Visual Trig Func averages 1.0 out of 5 from 2 ratings, while Photronium averages 5.0 from 8 ratings.
Do Visual Trig Func or Photronium have ads?
Visual Trig Func shows ads; Photronium does not.
Which is updated more often, Visual Trig Func or Photronium?
Visual Trig Func ships an update every 5 months, and Photronium monthly. Most recently, Visual Trig Func was updated on October 4, 2026 and Photronium on October 6, 2026.

Other comparisons