# Rounding vs Slope Calculator Plus

The clearest difference is price: Rounding at Free against Slope Calculator Plus's $2.99. Rounding also leads on iOS requirement (15.0 vs 17.0). Slope Calculator Plus's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence and device support there is nothing between them.

Rounding is free to download; Slope Calculator Plus costs $2.99 up front. Rounding sells 1 one-off in-app purchase. Slope Calculator Plus asks for nothing beyond the download.

Rounding ships an update every 12 months, Slope Calculator Plus every 23 months. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Rounding | Slope Calculator Plus |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.0 (80 ratings)](https://appshunter.io/ios/app/rounding/id572102136/reviews)** | — |
| Number of ratings | **80** | — |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 12 months** | Every 23 months |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Horizon Business, Inc.](https://appshunter.io/developer/431586531) | [Heng Jia Liang](https://appshunter.io/developer/1532000635) |

## What reviewers say

### Rounding

[App page](https://appshunter.io/ios/app/rounding/id572102136)

Practice rounding numbers with whole numbers and decimals. Adjust difficulty and place values in settings to master the game. This app makes learning math fun and engaging.

**Highlights:** Rounding whole numbers and decimals, Multiple place values, Customizable settings, Skill mastery focus, Engaging gameplay

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### Slope Calculator Plus

[App page](https://appshunter.io/ios/app/slope-calculator-plus/id1627653061)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rounding free?

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

### Is Slope Calculator Plus free?

Slope Calculator Plus costs $2.99, with no in-app purchases.

### Do Rounding or Slope Calculator Plus have ads?

Rounding shows ads; Slope Calculator Plus does not.

### Which is updated more often, Rounding or Slope Calculator Plus?

Rounding ships an update every 12 months, and Slope Calculator Plus every 23 months. Most recently, Rounding was updated on October 24, 2026 and Slope Calculator Plus on October 9, 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.*