CalT vs Week 53
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalT
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.
- Add, subtract, multiply, and divide time intervals
- Calculate difference between two dates/times
- Switch between result modes
- Lite and Dark themes
- Customizable accent colors
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CalT is an easy, convenient and perfect tool to perform Date & Time calculations. 1. Easily add, subtract, multiply and divide Minutes, Hours, Days, Months and even Years. 2. Switch between different result modes. 3. Choose between Lite and Dark app themes and pick your favorite color to make the app match your taste. DIFFERENCE Find out what is the difference between two dates and times. CalT is nothing superfluous and only that that is necessary for calculations of date and time.
Week 53
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Week 53 is a fiscal calendar utility that allows you to quickly access your fiscal calendar in digital form. It supports various types of fiscal calendars (4-4-5, 4-5-4, and 5-4-4) and dynamically generates the calendar based on the start date of your fiscal year. It also offers support for marking holidays with visual cues for year-over-year shifts in holiday timing.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | CalT | Week 53 |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 16 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 9 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Vladislav Kovalyov | Jackson Holbrook |
In-app purchases
CalT
No in-app purchases
Week 53
- Week 53 Lifetime Access$3.99
