# Trigonometry calc vs AC Method for Factoring

The clearest difference is rating: AC Method for Factoring at 5.0 against Trigonometry calc's 3.0. AC Method for Factoring also leads on ads (none vs shown) and update cadence (fortnightly vs every 3 months). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Trigonometry calc sells 1 one-off in-app purchase and AC Method for Factoring sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

AC Method for Factoring holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Trigonometry calc ships an update every 3 months, AC Method for Factoring fortnightly. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Trigonometry calc | AC Method for Factoring |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-calc/id1306864057/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ac-method-for-factoring/id1500086077/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 179 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bo Kalvslund](https://appshunter.io/developer/572272193) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Trigonometry calc

[App page](https://appshunter.io/ios/app/trigonometry-calc/id1306864057)

Calculate side lengths and angles in right-angled triangles using Pythagorean theorem and trigonometry functions. Learn basic trigonometry concepts. An optional premium version removes ads and unlocks a general triangle calculator.

**Highlights:** Calculate side lengths, Calculate angles, Pythagorean Theorem, Trigonometry functions, Learn simple trigonometry, General triangle calculator (premium)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


### AC Method for Factoring

[App page](https://appshunter.io/ios/app/ac-method-for-factoring/id1500086077)

Instantly complete homework and prepare for exams with step-by-step solutions for factoring quadratic terms using the AC method. Share your solutions and access informative introductions and learning videos.

**Highlights:** Step-by-step solutions, Factoring quadratic terms, Homework completion, Exam preparation, Solution sharing, Learning videos

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Remove Ads | $1.99 | one-time |
| Lifetime Access | $1.99 | one-time |


## Frequently asked questions

### Is Trigonometry calc free?

Trigonometry calc is free to download, with in-app purchases available.

### Is AC Method for Factoring free?

AC Method for Factoring is free to download, with in-app purchases available.

### Which has better reviews, Trigonometry calc or AC Method for Factoring?

AC Method for Factoring is rated higher. Trigonometry calc averages 3.0 out of 5 from 2 ratings, while AC Method for Factoring averages 5.0 from 1 ratings.

### Do Trigonometry calc or AC Method for Factoring have ads?

Trigonometry calc shows ads; AC Method for Factoring does not.

### Which is updated more often, Trigonometry calc or AC Method for Factoring?

Trigonometry calc ships an update every 3 months, and AC Method for Factoring fortnightly. Most recently, Trigonometry calc was updated on October 12, 2026 and AC Method for Factoring on October 5, 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.*