Calculator Sharp vs Font Up
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator Sharp
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.
- Ultra-high precision (37 digits)
- Supports complex mathematical operations
- Displays calculation steps
- Undo and redo functionality
- Multiple number base conversions
- WYSIWYG interface
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Calculator Sharp is a feature-rich, simple and practical operation of text calculator. Calculator tool Features : Ultra-high-precision, The accuracy of commonly calculator is 15, But Calculator Sharp can reach 37 accuracy. WYSIWYG glance. Easy to use, low threshold, for the majority of students and staff to use Support displays the calculated step function Support undo and anti- undo function Support flexible and complex calculations expressions. Specific Features * Support for the basic arithmetic operators * Support exponentiation * Support for radical sign operation * Support for logarithm operations * Support factorial and double factorial operator * Support Permutation and combination * Support trigonometric and inverse trigonometric * Support hyperbolic functions and inverse hyperbolic functions * Support for sum method and average method * Support for the maximum and minimum approach * Support for the greatest common divisor and least common multiple * Support for remainder * Supports integer interception , rounding up and rounding down to rounding methods. * Support random number and range of random numbers * Support summation (Σ) and quadrature (Π) op * Support definite integral (∫) operation * Support convert degrees to radians and radians to degrees operator * Support for binary, octal, decimal, hexadecimal conversion between. * Support degrees (DEG) and radians (RAD) two calculation modes * Support rounded to the decimal digits function * Supports Undo and anti-undo function. * Support the cursor forward and backward functions * Support clear and delete the previous character feature. * Support slide down keyboard and display the calculation steps function. Calculator Sharp for OS X:https://itunes.apple.com/us/app/calc-sharp/id888324648?ls=1&mt=12
Font Up
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.
- Full screen display
- Adjustable font size
- Adjustable font color
- One-click clear content
- Dark mode support
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As the elders in the family get older and their hearing becomes more or less poor, communication becomes extremely inconvenient, sometimes shouting out loud will not help. Font Up is software for people with hearing impairments or family members with hearing impairments in the family. Just type out the words you want to say, and then adjust the font size and color to make it easier for people with hearing impairments to communicate with people with normal hearing. Features: * Use the entire screen to show what you want to communicate (iPhone or iPad) * Font size and color can be adjusted freely * Clear content with one click for easier communication * Support dark mode
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Calculator Sharp | Font Up |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (5 ratings) — better | 3.8 (8 ratings) |
| Positive reviews | 93.8% of reviews — better | 0.0% of reviews |
| Number of ratings | 5 | 8 — better |
| Update frequency | Every 5 months — better | Every 7 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 31 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | 锦文 游 | 恒俭 董 |
Customer experience
Calculator Sharp
Font Up
In-app purchases
Calculator Sharp
No in-app purchases
Font Up
No in-app purchases
Questions
Is Calculator Sharp free?
Is Font Up free?
Which has better reviews, Calculator Sharp or Font Up?
Do Calculator Sharp or Font Up have ads?
Which is updated more often, Calculator Sharp or Font Up?
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