# Calculator Sharp vs Font Up

The clearest difference is review sentiment: Calculator Sharp at 94% against Font Up's 0%. Calculator Sharp also leads on price (Free vs $0.99) and rating (5.0 vs 3.8). Font Up's advantage is ads (none vs shown). On ratings volume, update cadence, in-app purchases and device support there is nothing between them.

Calculator Sharp is free to download; Font Up costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calculator Sharp holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 5 and 8 respectively. Written reviews point the same way: 94% of Calculator Sharp's written reviews are positive against 0% of Font Up's.

Calculator Sharp ships an update every 5 months, Font Up every 7 months. The most recent releases landed on August 30, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | Calculator Sharp | Font Up |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/calculator-sharp/id882461576/reviews)** | [3.8 (8 ratings)](https://appshunter.io/ios/app/font-up/id1492035760/reviews) |
| Number of ratings | 5 | **8** |
| Positive reviews | **93.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 7 months |
| Monetization | **Ad-supported** | Paid |
| Size | 31 MB | 9 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [锦文 游](https://appshunter.io/developer/406832160) | [恒俭 董](https://appshunter.io/developer/947356968) |

## What reviewers say

### Calculator Sharp

[App page](https://appshunter.io/ios/app/calculator-sharp/id882461576)

This calculator app offers ultra-high precision with up to 37 digits of accuracy. It supports a wide range of complex mathematical functions, including trigonometric, logarithmic, and integral operations, along with step-by-step calculation display and undo/redo functionality.

**Highlights:** Ultra-high precision (37 digits), Supports complex mathematical operations, Displays calculation steps, Undo and redo functionality, Multiple number base conversions, WYSIWYG interface

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

**In-app purchases:** none


### Font Up

[App page](https://appshunter.io/ios/app/font-up/id1492035760)

Facilitate communication for individuals with hearing impairments. Type messages and adjust font size and color for clear display on the entire screen. A simple tool to bridge communication gaps.

**Highlights:** Full screen display, Adjustable font size, Adjustable font color, One-click clear content, Dark mode support

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Sharp free?

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

### Is Font Up free?

Font Up costs $0.99, with no in-app purchases.

### Which has better reviews, Calculator Sharp or Font Up?

Calculator Sharp is rated higher. Calculator Sharp averages 5.0 out of 5 from 5 ratings, while Font Up averages 3.8 from 8 ratings.

### Do Calculator Sharp or Font Up have ads?

Calculator Sharp shows ads; Font Up does not.

### Which is updated more often, Calculator Sharp or Font Up?

Calculator Sharp ships an update every 5 months, and Font Up every 7 months. Most recently, Calculator Sharp was updated on August 30, 2026 and Font Up on August 22, 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.*