# Trigonometry Identities Proofs vs Equation

The clearest difference is update cadence: Equation at monthly against Trigonometry Identities Proofs's every 32 months. Trigonometry Identities Proofs's advantage is price ($0.99 vs $1.99) and iOS requirement (13.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Trigonometry Identities Proofs costs $0.99 and Equation $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Trigonometry Identities Proofs ships an update every 32 months, Equation monthly. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Trigonometry Identities Proofs | Equation |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-identities-proofs/id1547838514/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Monthly** |
| Monetization | Paid | — |
| Size | 18 MB | 30 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [H3 Apps, LLC](https://appshunter.io/developer/598620927) | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) |

## What reviewers say

### Trigonometry Identities Proofs

[App page](https://appshunter.io/ios/app/trigonometry-identities-proofs/id1547838514)

Learn and practice trigonometric identity proofs with step-by-step solutions. Compare your work to the app's detailed explanations, revealing each step individually.

**Highlights:** 42 trigonometric identity proofs, Step-by-step solution reveal, Compare your work to app solutions, Practice trigonometry, Educational math tool

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

**In-app purchases:** none


### Equation

[App page](https://appshunter.io/ios/app/equation-solver-pro/id1618982773)

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

**In-app purchases:** none


## Frequently asked questions

### Is Trigonometry Identities Proofs free?

Trigonometry Identities Proofs costs $0.99, with no in-app purchases.

### Is Equation free?

Equation costs $1.99, with no in-app purchases.

### Do Trigonometry Identities Proofs or Equation have ads?

Neither Trigonometry Identities Proofs nor Equation shows ads.

### Which is updated more often, Trigonometry Identities Proofs or Equation?

Trigonometry Identities Proofs ships an update every 32 months, and Equation monthly. Most recently, Trigonometry Identities Proofs was updated on October 8, 2026 and Equation on October 11, 2026.

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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.*