KF Lounge vs SFClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KF Lounge
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KF Lounge is a technical discussions and Q&A platform built on the popular forum software, Discourse.
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: KF Lounge at every 2 months against SFClock's every 5 months. KF Lounge also leads on iOS requirement (13.4 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.
KF Lounge ships an update every 2 months, SFClock every 5 months. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.
| Parameter | KF Lounge | SFClock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (4 ratings) — better |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Requires iOS | 13.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 22 MB | 0 MB |
| Age rating | 17+ | 4+ |
| Developer | KodeFox, Inc. | Yafei Dong |
In-app purchases
KF Lounge
No in-app purchases
SFClock
No in-app purchases
Questions
Is KF Lounge free?
Is SFClock free?
Do KF Lounge or SFClock have ads?
Which is updated more often, KF Lounge or SFClock?
Other comparisons
