# Trigonometry Identities Proofs vs Learn Project Management Pro

The clearest difference is update cadence: Learn Project Management Pro at every 11 months against Trigonometry Identities Proofs's every 32 months. Learn Project Management Pro also leads on iOS requirement (10.0 vs 13.0). Trigonometry Identities Proofs's advantage is price ($0.99 vs $1.99). On ads, in-app purchases and device support there is nothing between them.

Trigonometry Identities Proofs costs $0.99 and Learn Project Management Pro $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, Learn Project Management Pro every 11 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Trigonometry Identities Proofs | Learn Project Management Pro |
| --- | --- | --- |
| 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 | **Every 11 months** |
| Monetization | Paid | — |
| Size | 18 MB | 35 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [H3Apps LLC](https://appshunter.io/developer/598620927) | [Haroon Khalil](https://appshunter.io/developer/1685448939) |

## 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


### Learn Project Management Pro

[App page](https://appshunter.io/ios/app/learn-project-management-pro/id6448913050)

**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 Learn Project Management Pro free?

Learn Project Management Pro costs $1.99, with no in-app purchases.

### Do Trigonometry Identities Proofs or Learn Project Management Pro have ads?

Neither Trigonometry Identities Proofs nor Learn Project Management Pro shows ads.

### Which is updated more often, Trigonometry Identities Proofs or Learn Project Management Pro?

Trigonometry Identities Proofs ships an update every 32 months, and Learn Project Management Pro every 11 months. Most recently, Trigonometry Identities Proofs was updated on October 29, 2026 and Learn Project Management Pro on October 30, 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.*