Twilight Time vs Simple Clock JP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Twilight Time
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Shows the time before sunrise and after sunset when the sun is below the horizon and it is bright outside (twilight). Twilight 1. Civil twilight 2. Nautical twilight 3. Astronomical twilight
Simple Clock JP
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Simple Clock JP shows the current time in large, bold digits, easy to read at a glance from across the room or the stage. Just open the app and the clock is there. No setup, no complicated controls. Features - Large, easy-to-read time display - Shows hours, minutes, and seconds - Date and day of the week - Simple black background - The screen stays on while the clock is shown - On iPad, resize the window freely and place it next to your sheet music or set list app - Picture in Picture: float a compact clock over any other app - No ads, no account, no setup Use it as a desk clock, at work, at events, or on stage whenever you want to see the time in big numbers. A simple clock made for one thing: showing the time, big.
Screenshots
Verdict
The clearest difference is ads: Simple Clock JP at none against Twilight Time's shown. Twilight Time's advantage is update cadence (every 2 weeks vs every 4 weeks). On price, in-app purchases, device support and iOS requirement 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.
Twilight Time ships an update every 2 weeks, Simple Clock JP every 4 weeks. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.
| Parameter | Twilight Time | Simple Clock JP |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 4 weeks |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.7.10 — better | 17.0 |
| Further details — not scored | ||
| Size | 36 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideaki Uchikoshi | Kantaro Kobayashi |
In-app purchases
Twilight Time
No in-app purchases
Simple Clock JP
No in-app purchases
Questions
Is Twilight Time free?
Is Simple Clock JP free?
Do Twilight Time or Simple Clock JP have ads?
Which is updated more often, Twilight Time or Simple Clock JP?
Other comparisons
