# Grandpa Notes vs Clock4Key World Clock Keyboard

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.

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.

## The numbers

| Metric | Grandpa Notes | Clock4Key World Clock Keyboard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clock4key-world-clock-keyboard/id6503244597/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Daily** |
| Monetization | — | Free |
| Size | 3 MB | 3 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Julien Eyriès](https://appshunter.io/developer/414653864) | [Khang Le](https://appshunter.io/developer/1078541780) |

## What reviewers say

### Grandpa Notes

[App page](https://appshunter.io/ios/app/grandpa-notes/id1643176779)

**Features:** macOS Compatibility

**In-app purchases:** none


### Clock4Key World Clock Keyboard

[App page](https://appshunter.io/ios/app/clock4key-world-clock-keyboard/id6503244597)

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.

**Highlights:** Instant time input for global cities, Real-time worldwide time updates, Seamless keyboard integration, Avoids manual time conversions, Ideal for travelers and professionals

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grandpa Notes free?

Grandpa Notes is free to download, with no in-app purchases.

### Is Clock4Key World Clock Keyboard free?

Clock4Key World Clock Keyboard is free to download, with no in-app purchases.

### Do Grandpa Notes or Clock4Key World Clock Keyboard have ads?

Neither Grandpa Notes nor Clock4Key World Clock Keyboard shows ads.

### Which is updated more often, Grandpa Notes or Clock4Key World Clock Keyboard?

Grandpa Notes ships an update every 20 months, and Clock4Key World Clock Keyboard daily. Most recently, Grandpa Notes was updated on September 29, 2026 and Clock4Key World Clock Keyboard on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*