Grandpa Notes vs Unix Time is Readable
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.
Unix Time is Readable
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Unix Time is Readable allows you to easily convert Unix time (number) to both Georgian as well as Hijri calendars. You can also use it in the opposite way by providing a Georgian date to get the equivalent value in Unix time.
Screenshots
Verdict
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.
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, Unix Time is Readable every 5 days. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.
| Parameter | Grandpa Notes | Unix Time is Readable |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 20 months | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Julien Eyriès | Fares Alharbi |
In-app purchases
Grandpa Notes
No in-app purchases
Unix Time is Readable
No in-app purchases
Questions
Is Grandpa Notes free?
Is Unix Time is Readable free?
Do Grandpa Notes or Unix Time is Readable have ads?
Which is updated more often, Grandpa Notes or Unix Time is Readable?
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