Visual Trig Func vs Crystal Lattice
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Crystal Lattice
Explore 3D crystal lattice structures with interactive scaling and rotation. Learn to calculate key properties for various crystal types, including metal, ionic, and covalent. Ideal for understanding complex atomic arrangements.
- Interactive 3D crystal lattice models
- Scale and rotate structures
- Calculate coordination number
- Calculate number of atoms/ions
- Atomic packing factor calculation
- Explanations for various crystal types
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The iOS app "Crystal Lattice" contains basic knowledge (university entrance exam level) of crystal lattices. When learning about crystal lattices, you may find it difficult to understand the 3D structure, and this app will come in handy at such times. The iOS app "Crystal Lattice" allows you to scale and rotate the 3D displayed crystal lattice. Promote 3D understanding by looking at things from various angles. For metal crystals and covalent crystals, this app explains how to calculate the coordination number, number of atoms in the lattice, atomic radius, and atomic packing factor. For ionic crystals, this app explains how to calculate the coordination number, number of ions in the lattice, ionic radius, and limiting radius ratio. Regarding metal crystals, this app explains body-centered cubic lattice, face-centered cubic lattice, and hexagonal close-packed structure. Regarding ionic crystals, this app explains NaCl type, CsCl type, ZnS (zincblende) type, and CaF2 (fluorite) type. Regarding covalent crystals, this app explains Diamond type. [details] https://app.brain-workout.org/crystallattice-e/
Screenshots
Verdict
The clearest difference is review sentiment: Crystal Lattice at 100% against Visual Trig Func's 61%. Crystal Lattice also leads on in-app purchases (none vs 1). On price, update cadence, 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
Both are free to download. Visual Trig Func sells 1 one-off in-app purchase. Crystal Lattice asks for nothing beyond the download.
Visual Trig Func ships an update every 5 months, Crystal Lattice every 8 months. The most recent releases landed on June 1, 2026 and August 31, 2026 respectively.
| Parameter | Visual Trig Func | Crystal Lattice |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) — better | — |
| Positive reviews | 61.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 months — better | Every 8 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 4 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | yukihiro fujita | Yasuyoshi Ota |
Customer experience
Visual Trig Func
Crystal Lattice
In-app purchases
Visual Trig Func
- [ Add Calculation 360! ] (You can calc trig functions for over 90 degrees.)$0.99
Crystal Lattice
No in-app purchases
Questions
Is Visual Trig Func free?
Is Crystal Lattice free?
Do Visual Trig Func or Crystal Lattice have ads?
Which is updated more often, Visual Trig Func or Crystal Lattice?
Other comparisons
