Contact Mailer vs Week Numbers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Contact Mailer
Easily create an email pre-filled with selected contact information. Choose a contact, pick the details you wish to share, and generate an email draft to send.
- Select contacts from address book
- Choose specific contact details to send
- Generate pre-filled email drafts
- Opens native email application
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Create an email with the details of one of your contacts from your address book: - Select the contact. - Choose the contact details you want to send. - Press the Create email button which opens the email application where you can choose the receiver and finalize the subject and body text.
Week Numbers
This app displays the current week number on your device's icon badge and widget. It can also insert week numbers as all-day events into your calendar, supporting a wide range of years and custom configurations. Easily manage and remove entries with its unique cleaner tool.
- Icon badge and widget display
- Insert week numbers into calendar
- Supports ISO, US, and custom formats
- Year 1-10,000 support
- Calendar sync (iCal, Google, Outlook)
- Unique 'Cleaner' tool for entry removal
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• Always the current week number on the icon Badge and Widget. Refreshes automatically. • Easily inserts Week Numbers of year 1 - 10.000 as all-day events into your iPhone and iPad calendar. No need for any subscriptions or internet. Saves you a lot typing. The app contains: - ISO / European. - US. - Middle East. - Simple. - Custom. - Year 1 - 10.000 You can select beforehand if you want the week numbers to appear on one particular weekday or on all days of the week. Once added all week numbers can be easily edited and synced with iCal, Google, Outlook, iCloud, etc. If you added the week numbers twice by mistake or iCloud did not work the way you expected, you can always easily remove them with the unique “Cleaner”. MAIN FEATURES - Very simple, flexible and easy to use. - Insert into a calendar of your choice (home, work, etc). - Fully integrates with the iPhone calendar and syncs with iCal, iCloud, etc. - You can edit the weeknumbers or delete them in one go. - Unique Cleaner that checks all your calendars for entries by THIS app and deletes them all.
Screenshots
Verdict
The clearest difference is review sentiment: Week Numbers at 43% against Contact Mailer's 0%. Week Numbers also leads on rating (3.0 vs 1.0) and update cadence (every 3 months vs every 29 months). On price, ratings volume, ads and in-app purchases 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
Contact Mailer costs $0.99 and Week Numbers $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Week Numbers holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 0% of Contact Mailer's written reviews are positive against 43% of Week Numbers's.
Contact Mailer ships an update every 29 months, Week Numbers every 3 months. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.
| Parameter | Contact Mailer | Week Numbers |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 1.0 (1 ratings) | 3.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 42.9% of reviews — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 29 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Piet Jonas | Devart B.V. |
Customer experience
Contact Mailer
Week Numbers
In-app purchases
Contact Mailer
No in-app purchases
Week Numbers
No in-app purchases
Questions
Is Contact Mailer free?
Is Week Numbers free?
Which has better reviews, Contact Mailer or Week Numbers?
Do Contact Mailer or Week Numbers have ads?
Which is updated more often, Contact Mailer or Week Numbers?
Other comparisons
