Color gauge vs SFClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Color gauge
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カメラで撮影した対象物の色を、独自の技術で標準化しLabを測定します。 スカラ社製光学アダプタをiPhoneのカメラの前に取り付けて撮影します。 咽の赤みを測定する場合は、ご購入いただいた光学アダプタ付属のQRコードをかざしてご使用ください。 撮影した画像はメールでスカラが運営するサーバにメール送信します。 メールで集めた画像はお客様のニーズを把握し、より一層のアプリ機能の充実を図るために使用します。
SFClock
This utility app displays a flip clock and calendar. It offers customizable clock settings like 12/24 hour format and seconds display. Users can navigate the calendar and choose from various light and dark color themes.
- Flip clock display
- Calendar view
- 12/24 hour format
- Seconds display toggle
- Calendar month navigation
- Color themes
- Light/dark mode
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SFClock is a simple flip clock and calendar App. Flip clock and calendar are displayed in portrait, and only clock in landscape. You can change 12/24 hours and seconds display of clock. You also can move month in calendar with the arrows, and back to current month by tapping the month title. There are many color themes, and you can choose a light or dark one to use.
Screenshots
Verdict
The clearest difference is update cadence: Color gauge at every 3 weeks against SFClock's every 5 months. Color gauge also leads on iOS requirement (12.1 vs 17.0). On price, ads, 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.
Color gauge ships an update every 3 weeks, SFClock every 5 months. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.
| Parameter | Color gauge | SFClock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (4 ratings) — better |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 3 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, Vision Pro — better |
| Requires iOS | 12.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 149 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | SCALAR CORP. | Yafei Dong |
In-app purchases
Color gauge
No in-app purchases
SFClock
No in-app purchases
