Calendar Week Nerd vs OnlyNumbers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calendar Week Nerd
This app offers customizable widgets for your home and lock screens, allowing you to track week progress and navigate your calendar. It supports Apple Watch complications and various custom week setups, including ISO and fiscal years.
- Home and lock screen widgets
- Custom week start day
- ISO and fiscal year week numbering
- Apple Watch app and complications
- Direct calendar navigation
- Yearly progress arcs
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Have your most beautiful week ever. Calendar Week Nerd is the ultimate week companion that respects both aesthetics and technical needs. Whether you just want minimal, colorful week widgets or need full custom week setup with ISO, fiscal years, and 9-day cycles, CWN adapts to you. Features: Beautiful Widgets: Home screen, lock screen, and interactive widgets in all sizes. Custom Week Setup: Choose your start day, fiscal year, week numbering, even 9-day sprints with custom week lengths. Apple Watch App + Complications: See week numbers and progress right on your wrist. Calendar Navigation: Tap any week and jump directly into your calendar app. Week & Year Arcs: Track where you are in the year at a glance. Calendar Week Nerd The perfect week system you didn't know you needed. Privacy Policy: https://calendarweeknerd.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
OnlyNumbers
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Pick a date in the past or future and and see exactly how far away it is, in days, months, or years. Keep as many as you like. Name them, or not. View in full screen. Swipe to delete, hold and drag to reorder. Pin one to your home screen as a widget and see it without opening the app. Light and dark follow your system. Text scales with your accessibility settings, all the way up. No accounts. No data collection. No ads. Your numbers stay on your device.
Screenshots
Verdict
The clearest difference is in-app purchases: OnlyNumbers at none against Calendar Week Nerd's 3. OnlyNumbers also leads on iOS requirement (16.4 vs 18.4). On price, update cadence, 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
Both are free to download. Calendar Week Nerd sells 3 in-app purchases, starting at $1.99 per month. OnlyNumbers asks for nothing beyond the download.
Calendar Week Nerd ships an update every 2 weeks, OnlyNumbers every 9 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | Calendar Week Nerd | OnlyNumbers |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 18.4 | 16.4 — better |
| Further details — not scored | ||
| Size | 161 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Balthasar Siekiera | Mike Parker |
In-app purchases
Calendar Week Nerd
- CalendarWeekNerd+ Monthly$1.991 Month
- CalendarWeekNerd Plus Yearly$9.991 Year
- CalendarWeekNerd+ Lifetime$29.99
OnlyNumbers
No in-app purchases
Questions
Is Calendar Week Nerd free?
Is OnlyNumbers free?
Do Calendar Week Nerd or OnlyNumbers have ads?
Which is updated more often, Calendar Week Nerd or OnlyNumbers?
Other comparisons
