# Duplicate Contacts Cleaner Pro vs Calculator Plus History Record

The clearest difference is ads: Duplicate Contacts Cleaner Pro at none against Calculator Plus History Record's shown. Duplicate Contacts Cleaner Pro also leads on update cadence (every 6 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Duplicate Contacts Cleaner Pro sells 1 in-app purchase, starting at $4.99 per month and Calculator Plus History Record sells 3 in-app purchases, starting at $3.99 per 6 months. Whichever you choose, the download price is not the number that matters.

Duplicate Contacts Cleaner Pro ships an update every 6 days, Calculator Plus History Record every 3 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Duplicate Contacts Cleaner Pro | Calculator Plus History Record |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (15 ratings)](https://appshunter.io/ios/app/calculator-plus-history-record/id6478006331/reviews)** |
| Number of ratings | — | **15** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 21 MB |
| Requires iOS | 15.5 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oksana Nikita](https://appshunter.io/developer/1723633323) | [SUSAMP INFOTECH](https://appshunter.io/developer/1535920005) |

## What reviewers say

### Duplicate Contacts Cleaner Pro

[App page](https://appshunter.io/ios/app/duplicate-contacts-cleaner-pro/id6449712207)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Functions Unlock | $4.99 | per month |


### Calculator Plus History Record

[App page](https://appshunter.io/ios/app/calculator-plus-history-record/id6478006331)

This calculator app keeps a running record of all your calculations, allowing you to easily review past computations. It offers customizable features like font size, number separators, and themes, and can even convert numbers to words. Upgrade to premium to add titles to calculations and remove ads.

**Highlights:** Real-time calculation history, Error-free basic calculations, Customizable keyboard and font size, Convert numbers to words, Save and sync calculations, Multiple themes

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add Title & Remove Ads | $3.99 | per 6 months |
| Add Title & Remove Ads | $5.99 | per year |
| Add Note & Remove Ads | $7.99 | one-time |


## Frequently asked questions

### Is Duplicate Contacts Cleaner Pro free?

Duplicate Contacts Cleaner Pro is free to download, with in-app purchases available.

### Is Calculator Plus History Record free?

Calculator Plus History Record is free to download, with in-app purchases available.

### Do Duplicate Contacts Cleaner Pro or Calculator Plus History Record have ads?

Calculator Plus History Record shows ads; Duplicate Contacts Cleaner Pro does not.

### Which is updated more often, Duplicate Contacts Cleaner Pro or Calculator Plus History Record?

Duplicate Contacts Cleaner Pro ships an update every 6 days, and Calculator Plus History Record every 3 weeks. Most recently, Duplicate Contacts Cleaner Pro was updated on October 30, 2026 and Calculator Plus History Record on November 5, 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.*