# Conversion Calculator Units vs Calculator +ㅤ

The clearest difference is monetization model: Conversion Calculator Units at free with in-app purchases against Calculator +ㅤ's subscription. Conversion Calculator Units also leads on review sentiment (82% vs 47%). Calculator +ㅤ's advantage is update cadence (fortnightly vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Conversion Calculator Units sells 1 one-off in-app purchase and Calculator +ㅤ sells 6 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Conversion Calculator Units against 4.6 for Calculator +ㅤ. Both are backed by a comparable volume of ratings — 5K and 4.6K respectively. Written reviews are what separate them: 82% of Conversion Calculator Units's written reviews are positive against 47% of Calculator +ㅤ's.

Conversion Calculator Units ships an update every 2 months, Calculator +ㅤ fortnightly. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Conversion Calculator Units | Calculator +ㅤ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews)** | [4.6 (4.6K ratings)](https://appshunter.io/ios/app/calculator-plus/id1597933199/reviews) |
| Number of ratings | **5K** | 4.6K |
| Positive reviews | **82.1% of reviews** | 46.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 41 MB | 55 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RV AppStudios LLC](https://appshunter.io/developer/340181308) | [Rocket Apps GmbH](https://appshunter.io/developer/1566586717) |

## What reviewers say

### Conversion Calculator Units

[App page](https://appshunter.io/ios/app/conversion-calculator-units/id727632233)

This app offers a simple and powerful way to convert between over 140 units across 12 categories. Easily switch between units, customize your experience with themes, and share your results.

**Highlights:** Converts over 140 units, Supports 12 conversion categories, Customizable themes, Drag and set unit positions, Add units to favorites, Share converted units via email

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 👍 User-friendly
- 🚀 Easy to use
- 💡 Helpful for learning metric system
- 👍 Great for conversions
- 👍 Intuitive interface

**What reviewers complain about**

- 🐛 Ads disrupt usage
- 🐛 Difficult to change units
- 🐛 Lacks portrait mode
- 🐛 Upside-down orientation issues
- 🐛 Cluttered UI design

**Reported bugs**

- Ads not removed after purchase
- Incorrect unit conversions

**Requested features**

- Add pressure conversion units
- Include a basic calculator function
- Implement multi-language support
- Allow customization of unit order


### Calculator +ㅤ

[App page](https://appshunter.io/ios/app/calculator-plus/id1597933199)

This app simplifies math with basic, scientific, and fraction calculations. It also features a unique snap-and-scribble function to solve problems from photos. Customize your experience with themes and access a calculation history.

**Highlights:** Snap and Scribble Calculator, Basic Calculator, Scientific Calculator, Fraction Calculator, Currency Converter, Calculation History, Customizable Themes

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rocket Apps PRO Weekly | $2.99 | per 7 days |
| Rocket Apps PRO Monthly | $4.99 | per month |
| Rocket Apps PRO Yearly | $9.99 | per year |
| Rocket Apps PRO Offer | $19.99 | per year |
| Rocket Apps PRO Yearly | $19.99 | per year |
| Rocket Apps PRO Yearly | $29.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Accurate calculations
- 🎨 Excellent visuals
- 💡 Helpful for academic work

**What reviewers complain about**

- 💰 Subscription model too expensive
- 🔍 Decimal entry quirks
- 📺 Too many ads
- 🔒 Locked features behind paywall

**Reported bugs**

- Inaccurate square root calculations
- Compatibility issues on iPad
- Decimal point not recognized

**Requested features**

- Negative number support
- Improved fraction calculator
- Scientific calculator layout
- Option to disable history feature


## Frequently asked questions

### Is Conversion Calculator Units free?

Conversion Calculator Units is free to download, with in-app purchases available.

### Is Calculator +ㅤ free?

Calculator +ㅤ is free to download, with in-app purchases available.

### Which has better reviews, Conversion Calculator Units or Calculator +ㅤ?

Conversion Calculator Units is rated higher. Conversion Calculator Units averages 4.7 out of 5 from 5K ratings, while Calculator +ㅤ averages 4.6 from 4.6K ratings.

### Do Conversion Calculator Units or Calculator +ㅤ have ads?

Both Conversion Calculator Units and Calculator +ㅤ show ads.

### Which is updated more often, Conversion Calculator Units or Calculator +ㅤ?

Conversion Calculator Units ships an update every 2 months, and Calculator +ㅤ fortnightly. Most recently, Conversion Calculator Units was updated on October 2, 2026 and Calculator +ㅤ on September 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.*