Grandpa Notes vs Clock4Key World Clock Keyboard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Grandpa Notes
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Grandpa Notes is a simple note-taking app. It is free and open source, with no advertisements, in-app purchases or tracking. Your notes are stored as plain text in a straightforward folder structure. You can create notebooks locally or in iCloud. There is also an optional encryption layer that is compatible with Cryptomator.
Clock4Key World Clock Keyboard
This custom keyboard allows users to quickly input the current time for major cities worldwide directly from their device's keyboard. It offers real-time global time updates and an intuitive design for efficient time zone coordination.
- Instant time input for global cities
- Real-time worldwide time updates
- Seamless keyboard integration
- Avoids manual time conversions
- Ideal for travelers and professionals
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World Clock Keyboard is a powerful iOS app designed to simplify the process of entering the current time for famous cities worldwide. This custom keyboard is ideal for anyone who frequently needs to know or share international times, offering convenience and speed at your fingertips. Key Features: - Instant Time Input: Quickly enter current times for major cities worldwide directly from your keyboard. - Global Coverage: Get real-time updates for numerous cities, ensuring accurate information. - User-Friendly: Intuitive design seamlessly integrates with your device’s keyboard. - Efficient: Save time by avoiding manual time conversions and app switching. - Traveler-Friendly: Perfect for globetrotters, business professionals, and anyone coordinating across time zones.
Screenshots
Verdict
The clearest difference is update cadence: Clock4Key World Clock Keyboard at daily against Grandpa Notes's every 20 months. Clock4Key World Clock Keyboard also leads on iOS requirement (15.0 vs 17.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Grandpa Notes ships an update every 20 months, Clock4Key World Clock Keyboard daily. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.
| Parameter | Grandpa Notes | Clock4Key World Clock Keyboard |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 20 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Julien Eyriès | Khang Le |
In-app purchases
Grandpa Notes
No in-app purchases
Clock4Key World Clock Keyboard
No in-app purchases
Questions
Is Grandpa Notes free?
Is Clock4Key World Clock Keyboard free?
Do Grandpa Notes or Clock4Key World Clock Keyboard have ads?
Which is updated more often, Grandpa Notes or Clock4Key World Clock Keyboard?
Other comparisons
