# Ratio & Proportion Calculator vs Decimal Coaching

The clearest difference is update cadence: Ratio & Proportion Calculator at every 3 weeks against Decimal Coaching's every 19 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Ratio & Proportion Calculator sells 8 one-off in-app purchases and Decimal Coaching sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Ratio & Proportion Calculator ships an update every 3 weeks, Decimal Coaching every 19 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Ratio & Proportion Calculator | Decimal Coaching |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (16 ratings)](https://appshunter.io/ios/app/ratio-and-proportion-calculator/id1497341674/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 19 months |
| Monetization | Free with in-app purchases | — |
| Size | 180 MB | 147 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Online Learning](https://appshunter.io/developer/1790866777) |

## What reviewers say

### Ratio & Proportion Calculator

[App page](https://appshunter.io/ios/app/ratio-and-proportion-calculator/id1497341674)

Easily solve proportion problems by entering three of the four variables. This app provides detailed step-by-step solutions and saves all your calculations in a history for later review. Fractions, decimals, and constants are supported.

**Highlights:** Solve proportions with 3 variables, Detailed solution steps, Calculation history, Supports fractions and decimals, Option to remove ads

**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 |


### Decimal Coaching

[App page](https://appshunter.io/ios/app/decimal-coaching/id6504126119)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - AO | $29.99 | one-time |
| Package - AR | $29.99 | one-time |
| Package - AP | $29.99 | one-time |
| Package - AU | $34.99 | one-time |
| Package - AY | $39.99 | one-time |
| Package - AZ | $39.99 | one-time |
| Package - BC | $39.99 | one-time |
| Package - BD | $39.99 | one-time |
| Package - BH | $49.99 | one-time |
| Package - BG | $49.99 | one-time |


## Frequently asked questions

### Is Ratio & Proportion Calculator free?

Ratio & Proportion Calculator is free to download, with in-app purchases available.

### Is Decimal Coaching free?

Decimal Coaching is free to download, with in-app purchases available.

### Do Ratio & Proportion Calculator or Decimal Coaching have ads?

Neither Ratio & Proportion Calculator nor Decimal Coaching shows ads.

### Which is updated more often, Ratio & Proportion Calculator or Decimal Coaching?

Ratio & Proportion Calculator ships an update every 3 weeks, and Decimal Coaching every 19 months. Most recently, Ratio & Proportion Calculator was updated on November 3, 2026 and Decimal Coaching on November 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.*