# Between Dates Calendar Math vs Scientific Calculator DES

The clearest difference is rating: Between Dates Calendar Math at 4.8 against Scientific Calculator DES's 4.3. Between Dates Calendar Math also leads on price ($0.99 vs $5.99) and ratings volume (42 vs 3). Scientific Calculator DES's advantage is update cadence (every 5 weeks vs every 4 months). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

Between Dates Calendar Math costs $0.99 and Scientific Calculator DES $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Between Dates Calendar Math holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Between Dates Calendar Math has 42 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 50% and 50% positive.

Between Dates Calendar Math ships an update every 4 months, Scientific Calculator DES every 5 weeks. The most recent releases landed on October 23, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Between Dates Calendar Math | Scientific Calculator DES |
| --- | --- | --- |
| Price | **$0.99** | $5.99 |
| Rating | **[4.8 (42 ratings)](https://appshunter.io/ios/app/between-dates-calendar-math/id442169104/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/scientific-calculator-des-38d/id1379779839/reviews) |
| Number of ratings | **42** | 3 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 1 MB | 9 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ducky Planet LLC](https://appshunter.io/developer/442169107) | [Dohmann Engineering Services](https://appshunter.io/developer/401682475) |

## What reviewers say

### Between Dates Calendar Math

[App page](https://appshunter.io/ios/app/between-dates-calendar-math/id442169104)

Calculate the number of days between two dates with a simple interface. Save, recall, sort, and remove date calculations. Add or subtract days from selected dates for quick date projections.

**Highlights:** Calculate days between dates, Save and recall date calculations, Sort and remove saved dates, Add or subtract days, Copy dates to start/end, Reset dates to current

**Features:** Vision Pro support

**In-app purchases:** none


### Scientific Calculator DES

[App page](https://appshunter.io/ios/app/scientific-calculator-des-38d/id1379779839)

This advanced calculator offers engineers and mathematicians a powerful tool with intuitive, multi-line display and left-to-right data entry. It supports various number bases, notations, and includes extensive statistical analysis and graphing capabilities. All features are available for a one-time purchase.

**Highlights:** Multi-line display with left-to-right entry, Supports Hex, Binary, Octal number bases, Decimal, Scientific, Fractional notation, Angle entry in degrees, radians, gradians, turns, 10 Memory Registers, Advanced statistics and graphing, Import CSV files for data sets

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

**In-app purchases:** none


## Frequently asked questions

### Is Between Dates Calendar Math free?

Between Dates Calendar Math costs $0.99, with no in-app purchases.

### Is Scientific Calculator DES free?

Scientific Calculator DES costs $5.99, with no in-app purchases.

### Which has better reviews, Between Dates Calendar Math or Scientific Calculator DES?

Between Dates Calendar Math is rated higher. Between Dates Calendar Math averages 4.8 out of 5 from 42 ratings, while Scientific Calculator DES averages 4.3 from 3 ratings.

### Do Between Dates Calendar Math or Scientific Calculator DES have ads?

Neither Between Dates Calendar Math nor Scientific Calculator DES shows ads.

### Which is updated more often, Between Dates Calendar Math or Scientific Calculator DES?

Between Dates Calendar Math ships an update every 4 months, and Scientific Calculator DES every 5 weeks. Most recently, Between Dates Calendar Math was updated on October 23, 2026 and Scientific Calculator DES on October 31, 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.*