# functionCalculator vs Trig Function(Math Drills)

The clearest difference is ads: Trig Function(Math Drills) at none against functionCalculator's shown. Trig Function(Math Drills) also leads on update cadence (every 4 days vs every 11 months) and monetization model (free vs ad-supported). functionCalculator's advantage is iOS requirement (10.3 vs 12.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

functionCalculator ships an update every 11 months, Trig Function(Math Drills) every 4 days. The most recent releases landed on June 1, 2026 and August 4, 2026 respectively.

## The numbers

| Metric | functionCalculator | Trig Function(Math Drills) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/functioncalculator/id1275985289/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Every 4 days** |
| Monetization | Ad-supported | **Free** |
| Size | 6 MB | 28 MB |
| Requires iOS | **10.3** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jirou Fukuda](https://appshunter.io/developer/689603483) | [郷 田村](https://appshunter.io/developer/1574588679) |

## What reviewers say

### functionCalculator

[App page](https://appshunter.io/ios/app/functioncalculator/id1275985289)

This app calculates the value of mathematical functions y = f(x) for various types of numbers, including irrational ones. It displays results as exact fractions with square roots and can convert them to decimals. The app also supports calculations involving two different input values, alpha and beta.

**Highlights:** Calculate function values for any number type, Display results as exact fractions, Convert results to decimal, Perform operations on two input values, Supports irrational numbers

**Features:** macOS Compatibility

**In-app purchases:** none


### Trig Function(Math Drills)

[App page](https://appshunter.io/ios/app/trig-functionmath-drills/id1670535500)

Practice trigonometric functions offline with automated question generation and correctness judgment. Review tips and answers, and compete in Challenge Mode to improve your rank. Ideal for students needing to master trigonometry.

**Highlights:** Offline learning, Automated question generation, Correctness judgment, Tips and answers, Challenge Mode, Rank improvement

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is functionCalculator free?

functionCalculator is free to download, with no in-app purchases.

### Is Trig Function(Math Drills) free?

Trig Function(Math Drills) is free to download, with no in-app purchases.

### Do functionCalculator or Trig Function(Math Drills) have ads?

functionCalculator shows ads; Trig Function(Math Drills) does not.

### Which is updated more often, functionCalculator or Trig Function(Math Drills)?

functionCalculator ships an update every 11 months, and Trig Function(Math Drills) every 4 days. Most recently, functionCalculator was updated on June 1, 2026 and Trig Function(Math Drills) on August 4, 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.*