# Between Dates Calendar Math vs Whenr Whenr

The clearest difference is price: Whenr Whenr at Free against Between Dates Calendar Math's $0.99. Whenr Whenr also leads on review sentiment (67% vs 50%) and rating (5.0 vs 4.8). Between Dates Calendar Math's advantage is update cadence (every 4 months vs every 22 months) and ratings volume (40 vs 4). On ads, in-app purchases and device support there is nothing between them.

Whenr Whenr is free to download; Between Dates Calendar Math costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Whenr Whenr holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Between Dates Calendar Math has 40 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of Between Dates Calendar Math's written reviews are positive against 67% of Whenr Whenr's.

Between Dates Calendar Math ships an update every 4 months, Whenr Whenr every 22 months. The most recent releases landed on August 28, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Between Dates Calendar Math | Whenr Whenr |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.8 (40 ratings)](https://appshunter.io/ios/app/between-dates-calendar-math/id442169104/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/whenr-whenr/id1659481999/reviews)** |
| Number of ratings | **40** | 4 |
| Positive reviews | 50.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 22 months |
| Monetization | Paid | **Free** |
| Size | 1 MB | 4 MB |
| Requires iOS | **13.0** | 16.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Ducky Planet LLC](https://appshunter.io/developer/442169107) | [Darin Kelkhoff](https://appshunter.io/developer/1659482001) |

## 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


### Whenr Whenr

[App page](https://appshunter.io/ios/app/whenr-whenr/id1659481999)

This app simplifies complex time calculations, helping you easily determine time differences, future times, and duration sums. It offers an intuitive interface and convenient options to copy, set reminders, or share results.

**Highlights:** Calculate time differences, Determine future times, Sum time durations, Copy results to clipboard, Create reminders from results, Share time calculations

**Features:** 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 Whenr Whenr free?

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

### Which has better reviews, Between Dates Calendar Math or Whenr Whenr?

Whenr Whenr is rated higher. Between Dates Calendar Math averages 4.8 out of 5 from 40 ratings, while Whenr Whenr averages 5.0 from 4 ratings.

### Do Between Dates Calendar Math or Whenr Whenr have ads?

Neither Between Dates Calendar Math nor Whenr Whenr shows ads.

### Which is updated more often, Between Dates Calendar Math or Whenr Whenr?

Between Dates Calendar Math ships an update every 4 months, and Whenr Whenr every 22 months. Most recently, Between Dates Calendar Math was updated on August 28, 2026 and Whenr Whenr on September 2, 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.*