# Trigonometric Equations vs Series Math Solver by CS

The clearest difference is price: Series Math Solver by CS at Free against Trigonometric Equations's $0.99. Trigonometric Equations's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Series Math Solver by CS is free to download; Trigonometric Equations costs $0.99 up front. Series Math Solver by CS sells 1 one-off in-app purchase. Trigonometric Equations asks for nothing beyond the download.

## The numbers

| Metric | Trigonometric Equations | Series Math Solver by CS |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 20 months | — |
| Size | 10 MB | 12 MB |
| Requires iOS | **9.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [FadiSoft Inc.](https://appshunter.io/developer/721334526) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### Trigonometric Equations

[App page](https://appshunter.io/ios/app/trigonometric-equations/id927622565)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Series Math Solver by CS

[App page](https://appshunter.io/ios/app/series-math-solver-by-cs/id6775148098)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


## Frequently asked questions

### Is Trigonometric Equations free?

Trigonometric Equations costs $0.99, with no in-app purchases.

### Is Series Math Solver by CS free?

Series Math Solver by CS is free to download, with in-app purchases available.

### Do Trigonometric Equations or Series Math Solver by CS have ads?

Series Math Solver by CS shows ads; Trigonometric Equations does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*