The Week Number vs WhenIsEaster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Week Number
Quickly determine the week number for any past or future date. Offers both US and ISO week numbering methods. The app icon updates to display the current week number upon launch.
- Calculate week number for any date
- Supports US week numbering (Sunday start)
- Supports ISO week numbering (Monday start)
- Icon badge displays current week number
- Past and future date calculations
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This application calculates the number of the week for any date in the past and the future. It can either use the US method (first day of week is a Sunday) or the ISO method (first day is a Monday, first week contains the first Thursday of the year). It updates the icon badge to the current week number on each start.
WhenIsEaster
This app calculates the date of Easter based on the Gregorian calendar. It provides the specific date for a given year, excluding Orthodox Easter calculations.
- Easter date calculation
- Gregorian calendar based
- Year-specific dates
- Simple interface
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WhenIsEaster™ simply tells you when Easter falls in a given year. It calculates from the Gregorian calendar and not the Julian calendar, so it does not tell you when Orthodox Easter is.
Screenshots
Verdict
The clearest difference is review sentiment: WhenIsEaster at 100% against The Week Number's 0%. WhenIsEaster also leads on price (Free vs $0.99) and rating (5.0 vs 1.0). The Week Number's advantage is iOS requirement (15.6 vs 17.6). On update cadence, ads, in-app purchases 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
WhenIsEaster is free to download; The Week Number costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
WhenIsEaster holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 0% of The Week Number's written reviews are positive against 100% of WhenIsEaster's.
The Week Number ships an update every 18 months, WhenIsEaster every 10 months. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.
| Parameter | The Week Number | WhenIsEaster |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 1.0 (1 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 18 months | Every 10 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 1 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Piet Jonas | Paul T Cottey |
Customer experience
The Week Number
WhenIsEaster
In-app purchases
The Week Number
No in-app purchases
WhenIsEaster
No in-app purchases
