# Fraction Calculator Plus #1 vs OptiTools Mobile

The clearest difference is rating: Fraction Calculator Plus #1 at 4.9 against OptiTools Mobile's 3.5. Fraction Calculator Plus #1 also leads on ratings volume (22K vs 2) and update cadence (every 5 weeks vs every 3 months). OptiTools Mobile's advantage is in-app purchases (none vs 9) and ads (none vs shown). On price, review sentiment and device support there is nothing between them.

Both are free to download. Fraction Calculator Plus #1 sells 9 in-app purchases, starting at $1.39 per month. OptiTools Mobile asks for nothing beyond the download.

Fraction Calculator Plus #1 holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: Fraction Calculator Plus #1 has 22K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 95% of Fraction Calculator Plus #1's written reviews are positive against 100% of OptiTools Mobile's, so the app with the better star average is not the one people write more warmly about.

Fraction Calculator Plus #1 ships an update every 5 weeks, OptiTools Mobile every 3 months. The most recent releases landed on September 25, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Fraction Calculator Plus #1 | OptiTools Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (22K ratings)](https://appshunter.io/ios/app/fraction-calculator-plus-1/id580778301/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/optitools-mobile/id1279710384/reviews) |
| Number of ratings | **22K** | 2 |
| Positive reviews | 94.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 147 MB | 59 MB |
| Requires iOS | 15.0 | **11** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DigitAlchemy LLC](https://appshunter.io/developer/376971628) | [Invertek Drives Limited](https://appshunter.io/developer/1279710383) |

## What reviewers say

### Fraction Calculator Plus #1

[App page](https://appshunter.io/ios/app/fraction-calculator-plus-1/id580778301)

Easily perform fraction calculations including addition, subtraction, multiplication, and division. Convert fractions to decimals and vice versa with a clear, user-friendly interface. Ideal for students, cooks, and DIYers needing quick and accurate fraction management.

**Highlights:** Add, subtract, multiply, and divide fractions, Convert fractions to decimals, Automatically simplifies fractions, Large display and buttons for easy use, Triple keyboard display for quick input, Displays results as decimals

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fraction Calculator | $1.39 | per month |
| Fraction Calculator | $1.99 | per month |
| Photo Calculator for Fractions | $1.99 | per 7 days |
| Fraction Calculator by Photo | $3.99 | per month |
| Calculator with Fractions | $8.39 | per year |
| Calculator with Fractions | $11.99 | per year |
| Remove ads | $3.99 | one-time |
| Fraction Calculator | $17.49 | one-time |
| Fraction Calculator | $24.99 | one-time |

**What reviewers like**

- 👍 Simple, easy to use
- 👍 Super app
- 👍 Awesome calculator
- 👍 Intuitive design
- 👍 Easy to use and does everything needed

**What reviewers complain about**

- 🐛 Intrusive ads
- 🐛 Subscription required for pro features

**Reported bugs**

- Pro version forgets subscription status
- Occasional crashes

**Requested features**

- Decimal conversion and support
- Rounding options
- Triangle math functionality


### OptiTools Mobile

[App page](https://appshunter.io/ios/app/optitools-mobile/id1279710384)

Configure and monitor Optidrive products wirelessly via Bluetooth. Transfer parameter sets, view real-time drive status, motor speed, current, and power. Adjust motor speed, start/stop drives, and reset trips when unlocked.

**Highlights:** Wireless configuration via Bluetooth BLE, Real-time parameter monitoring and editing, Transfer parameter sets between drive and smartphone, Monitor drive status, motor speed, current, and power, Adjust motor speed, start/stop drives, reset trips

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fraction Calculator Plus #1 free?

Fraction Calculator Plus #1 is free to download, with in-app purchases available.

### Is OptiTools Mobile free?

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

### Which has better reviews, Fraction Calculator Plus #1 or OptiTools Mobile?

Fraction Calculator Plus #1 is rated higher. Fraction Calculator Plus #1 averages 4.9 out of 5 from 22K ratings, while OptiTools Mobile averages 3.5 from 2 ratings.

### Do Fraction Calculator Plus #1 or OptiTools Mobile have ads?

Fraction Calculator Plus #1 shows ads; OptiTools Mobile does not.

### Which is updated more often, Fraction Calculator Plus #1 or OptiTools Mobile?

Fraction Calculator Plus #1 ships an update every 5 weeks, and OptiTools Mobile every 3 months. Most recently, Fraction Calculator Plus #1 was updated on September 25, 2026 and OptiTools Mobile on June 1, 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.*