Time Calculator (Compose) vs K
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Time Calculator (Compose)
Easily calculate the difference between two dates or add/subtract time from specific dates and times. It also converts durations into various time scales and saves your calculation history.
- Calculate time between two dates
- Add/subtract time to a time
- Add/subtract time to a date
- Convert durations to different scales
- Save and delete calculation history
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Time Calculator can perform the following calculations: 1. calculate the time between two dates (e.g. 6 AM June 1st to 8:32 PM June 2nd) 2. add or subtract time to a time (e.g. 6 hours 5 minutes plus 11 hours 7 minutes) 3. add or subtract time to a date (e.g. 6 hours 5 minutes after 8:32 PM June 2nd) 4. convert a duration to different time scales (e.g. 5 years is 60 months, 3 weeks, 4 days) History of your calculations can be saved or deleted on an entry-by-entry basis.
K
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Turn your phone screen into a vibrant LED billboard! Concerts, festivals, birthday parties, or surprise events — simply type your message and watch it scroll smoothly with a realistic neon glow effect, just like a real LED signboard. Ditch the lightsticks and paper banners, and deliver a message that stands out more than anyone else's with just the phone in your hand. [ Key Features ] - Neon Glow Text Replicates the feel of a real LED billboard with a brilliantly shining neon effect. It stays sharp and vivid even in dark concert venues. - Various Neon Colors Basic colors like Pink, Cyan, Green, and Yellow are provided for free. You can also create a more diverse atmosphere with premium colors including Purple, Orange, Red, and Blue. - Adjustable Scroll Direction & Speed Freely control the scroll direction (left/right) and speed to customize the billboard to your own style. - Full-Screen Display Mode Fills the screen horizontally to look just like a real electronic sign. The screen won't turn off automatically, ensuring uninterrupted use during events. - Simple Controls Return to the settings screen with a single tap, and change the scroll direction instantly with a double tap. - Auto-Save Settings Your last entered text, color, and speed settings are saved automatically so you can pick up right where you left off. [ Perfect For ] - Sending cheering messages at concerts and festivals - Displaying congratulations at birthday parties and anniversaries - Delivering surprise proposals or event messages - Showing guidance text at performances and venues - Exposing promotional phrases for stores and booths Create your own LED billboard easily with just your phone and no extra equipment. Get started right now!
Screenshots
Verdict
The clearest difference is ads: Time Calculator (Compose) at none against K's shown. 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.
| Parameter | Time Calculator (Compose) | K |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Shmuel Sternbach | JAEMIN LEE |
In-app purchases
Time Calculator (Compose)
No in-app purchases
K
No in-app purchases









