# Calculator Sharp vs NoteDay

The clearest difference is in-app purchases: Calculator Sharp at none against NoteDay's 4. Calculator Sharp also leads on iOS requirement (12.0 vs 17.0). NoteDay's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. NoteDay sells 4 in-app purchases, starting at $0.99 per 7 days. Calculator Sharp asks for nothing beyond the download.

Calculator Sharp ships an update every 5 months, NoteDay every 8 months. The most recent releases landed on August 30, 2026 and July 24, 2026 respectively.

## The numbers

| Metric | Calculator Sharp | NoteDay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/calculator-sharp/id882461576/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 8 months |
| Monetization | Ad-supported | — |
| Size | 31 MB | 63 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [锦文 游](https://appshunter.io/developer/406832160) | [W12 Consultoria](https://appshunter.io/developer/1812317573) |

## 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


### NoteDay

[App page](https://appshunter.io/ios/app/noteday-day-count/id6752316925)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly PRO | $0.99 | per 7 days |
| Month PRO | $1.99 | per month |
| Annual PRO | $4.99 | per year |
| Lifetime PRO | $9.99 | one-time |


## Frequently asked questions

### Is Calculator Sharp free?

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

### Is NoteDay free?

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

### Do Calculator Sharp or NoteDay have ads?

Calculator Sharp shows ads; NoteDay does not.

### Which is updated more often, Calculator Sharp or NoteDay?

Calculator Sharp ships an update every 5 months, and NoteDay every 8 months. Most recently, Calculator Sharp was updated on August 30, 2026 and NoteDay on July 24, 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.*