# Basic Calculator+ vs Open in Whatsup, Direct Chat

The clearest difference is rating: Basic Calculator+ at 4.9 against Open in Whatsup, Direct Chat's 3.1. Basic Calculator+ also leads on review sentiment (88% vs 50%) and in-app purchases (none vs 1). Open in Whatsup, Direct Chat's advantage is update cadence (every 2 months vs every 4 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Open in Whatsup, Direct Chat sells 1 one-off in-app purchase. Basic Calculator+ asks for nothing beyond the download.

Basic Calculator+ holds the better App Store score, 4.9 against 3.1. That said, the two scores are not equally well evidenced: Basic Calculator+ has 261K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 88% of Basic Calculator+'s written reviews are positive against 50% of Open in Whatsup, Direct Chat's.

Basic Calculator+ ships an update every 4 months, Open in Whatsup, Direct Chat every 2 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Basic Calculator+ | Open in Whatsup, Direct Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (261K ratings)](https://appshunter.io/ios/app/basic-calculator-plus/id539356791/reviews)** | [3.1 (7 ratings)](https://appshunter.io/ios/app/open-in-whatsup-direct-chat/id6447844750/reviews) |
| Number of ratings | **261K** | 7 |
| Positive reviews | **87.5% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 50 MB | 31 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Best Free Apps](https://appshunter.io/developer/539356794) | [Kraftos Tech Solutions LLP](https://appshunter.io/developer/1682860505) |

## What reviewers say

### Basic Calculator+

[App page](https://appshunter.io/ios/app/basic-calculator-plus/id539356791)

Perform essential arithmetic operations with a straightforward calculator app. Its large buttons and clear display ensure ease of use, supporting both portrait and landscape orientations.

**Highlights:** Basic four functions, Clear display, Large buttons, Portrait and landscape modes, iPad compatible

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Large, clear buttons
- 👍 Straightforward, basic functionality
- 👍 No ads or in-app purchases
- 👍 Works well on iPad

**What reviewers complain about**

- 🐛 Inconsistent click volume
- 🐛 Ads can be intrusive or disruptive
- 🐛 Missing backspace/delete function

**Reported bugs**

- Incorrect calculation results
- Ads covering the screen

**Requested features**

- Add fraction button
- Implement order of operations
- Include memory function


### Open in Whatsup, Direct Chat

[App page](https://appshunter.io/ios/app/open-in-whatsup-direct-chat/id6447844750)

Easily start WhatsApp chats with unsaved numbers without adding them to your contacts. Save time by directly opening conversations or sending SMS messages. Includes features like saving numbers, automatic country code detection, and chat wallpaper options.

**Highlights:** Start WhatsApp chats with unsaved numbers, Save numbers for later use, Automatic country code detection, Option to change country code, Send SMS messages, Dark and light chat wallpapers, Share status updates

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Basic Calculator+ free?

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

### Is Open in Whatsup, Direct Chat free?

Open in Whatsup, Direct Chat is free to download, with in-app purchases available.

### Which has better reviews, Basic Calculator+ or Open in Whatsup, Direct Chat?

Basic Calculator+ is rated higher. Basic Calculator+ averages 4.9 out of 5 from 261K ratings, while Open in Whatsup, Direct Chat averages 3.1 from 7 ratings.

### Do Basic Calculator+ or Open in Whatsup, Direct Chat have ads?

Both Basic Calculator+ and Open in Whatsup, Direct Chat show ads.

### Which is updated more often, Basic Calculator+ or Open in Whatsup, Direct Chat?

Basic Calculator+ ships an update every 4 months, and Open in Whatsup, Direct Chat every 2 months. Most recently, Basic Calculator+ was updated on October 26, 2026 and Open in Whatsup, Direct Chat on October 25, 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.*