# Calculator Sharp vs PetsPro

The clearest difference is in-app purchases: Calculator Sharp at none against PetsPro's 1. Calculator Sharp also leads on iOS requirement (12.0 vs 18.5). PetsPro's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 5 months). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. PetsPro sells 1 one-off in-app purchase. Calculator Sharp asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Calculator Sharp against 5.0 for PetsPro. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews are what separate them: 94% of Calculator Sharp's written reviews are positive against 100% of PetsPro's.

Calculator Sharp ships an update every 5 months, PetsPro every 2 weeks. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Calculator Sharp | PetsPro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/calculator-sharp/id882461576/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/petspro/id6749335820/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | 93.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 31 MB | 21 MB |
| Requires iOS | **12.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [锦文 游](https://appshunter.io/developer/406832160) | [APPLOAD LLC (NJ)](https://appshunter.io/developer/1825689362) |

## 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


### PetsPro

[App page](https://appshunter.io/ios/app/petspro/id6749335820)

Organize all your pet's health information, including vaccinations, medications, and vet records, in one place. Receive smart reminders and access essential details quickly for any situation.

**Highlights:** All-in-one pet profiles (up to 25 pets), Smart health tracking and reminders, Organized medical records with document attachments, Vet-ready information sharing, Customizable notifications, Quick-access star button for essential info, Secure iCloud backup and local export

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English | $1.99 | one-time |


## Frequently asked questions

### Is Calculator Sharp free?

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

### Is PetsPro free?

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

### Which has better reviews, Calculator Sharp or PetsPro?

Calculator Sharp and PetsPro are both rated 5.0 out of 5 on the App Store, from 5 and 2 ratings respectively.

### Do Calculator Sharp or PetsPro have ads?

Calculator Sharp shows ads; PetsPro does not.

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

Calculator Sharp ships an update every 5 months, and PetsPro every 2 weeks. Most recently, Calculator Sharp was updated on October 7, 2026 and PetsPro on October 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.*