# ProGraph Calculator vs Whenr Whenr

The clearest difference is update cadence: ProGraph Calculator at every 3 months against Whenr Whenr's every 22 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ProGraph Calculator ships an update every 3 months, Whenr Whenr every 22 months. The most recent releases landed on September 17, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | ProGraph Calculator | Whenr Whenr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/whenr-whenr/id1659481999/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 22 months |
| Monetization | — | Free |
| Size | 1 MB | 4 MB |
| Requires iOS | **16.0** | 16.1 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Pingleton](https://appshunter.io/developer/1584719976) | [Darin Kelkhoff](https://appshunter.io/developer/1659482001) |

## What reviewers say

### ProGraph Calculator

[App page](https://appshunter.io/ios/app/prograph-calculator/id1629338359)

**Features:** macOS Compatibility

**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 ProGraph Calculator free?

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

### Is Whenr Whenr free?

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

### Do ProGraph Calculator or Whenr Whenr have ads?

Neither ProGraph Calculator nor Whenr Whenr shows ads.

### Which is updated more often, ProGraph Calculator or Whenr Whenr?

ProGraph Calculator ships an update every 3 months, and Whenr Whenr every 22 months. Most recently, ProGraph Calculator was updated on September 17, 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.*