# Grandpa Notes vs Unix Time is Readable

The clearest difference is ads: Grandpa Notes at none against Unix Time is Readable's shown. Unix Time is Readable's advantage is update cadence (every 5 days vs every 20 months) and iOS requirement (15.0 vs 17.0). On price, 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, Unix Time is Readable every 5 days. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Grandpa Notes | Unix Time is Readable |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 20 months | **Every 5 days** |
| Size | 3 MB | 5 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Julien Eyriès](https://appshunter.io/developer/414653864) | [Fares Alharbi](https://appshunter.io/developer/1434218760) |

## What reviewers say

### Grandpa Notes

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Unix Time is Readable

[App page](https://appshunter.io/ios/app/unix-time-is-readable/id1659573028)

**In-app purchases:** none


## Frequently asked questions

### Is Grandpa Notes free?

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

### Is Unix Time is Readable free?

Unix Time is Readable is free to download, with no in-app purchases.

### Do Grandpa Notes or Unix Time is Readable have ads?

Unix Time is Readable shows ads; Grandpa Notes does not.

### Which is updated more often, Grandpa Notes or Unix Time is Readable?

Grandpa Notes ships an update every 20 months, and Unix Time is Readable every 5 days. Most recently, Grandpa Notes was updated on October 30, 2026 and Unix Time is Readable on October 27, 2026.

---

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