# CalT vs Week 53

The clearest difference is price: Week 53 at Free against CalT's $0.99. Week 53 also leads on update cadence (every 2 months vs every 16 months). CalT's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 16.2). On ads and device support there is nothing between them.

Week 53 is free to download; CalT costs $0.99 up front. Week 53 sells 1 one-off in-app purchase. CalT asks for nothing beyond the download.

CalT ships an update every 16 months, Week 53 every 2 months. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | CalT | Week 53 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/calt-date-and-time-calculator/id793926401/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 9 MB | 1 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vladislav Kovalyov](https://appshunter.io/developer/718333197) | [Jackson Holbrook](https://appshunter.io/developer/1689393103) |

## What reviewers say

### CalT

[App page](https://appshunter.io/ios/app/calt-date-and-time-calculator/id793926401)

Perform calculations with dates and times, including adding, subtracting, multiplying, and dividing time intervals. Customize the app's appearance with themes and colors. Find the difference between two specific dates and times.

**Highlights:** Add, subtract, multiply, and divide time intervals, Calculate difference between two dates/times, Switch between result modes, Lite and Dark themes, Customizable accent colors

**Features:** macOS Compatibility

**In-app purchases:** none


### Week 53

[App page](https://appshunter.io/ios/app/week-53/id6449493359)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week 53 Lifetime Access | $3.99 | one-time |


## Frequently asked questions

### Is CalT free?

CalT costs $0.99, with no in-app purchases.

### Is Week 53 free?

Week 53 is free to download, with in-app purchases available.

### Do CalT or Week 53 have ads?

Neither CalT nor Week 53 shows ads.

### Which is updated more often, CalT or Week 53?

CalT ships an update every 16 months, and Week 53 every 2 months. Most recently, CalT was updated on November 1, 2026 and Week 53 on October 27, 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.*