bnClock vs Round Millisecond Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
bnClock
This app displays the time with exceptionally large numbers, ideal for nighttime viewing or as a travel alarm. It also offers current weather information and customizable alarm sounds, including music from your library. Personalize your experience with custom background colors or photos.
- Extra-large number display
- Built-in alarm clock
- Current weather and forecast
- Customizable alarm sounds
- Photo or slideshow backgrounds
- Customizable background colors
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Do you ever have trouble reading the clock in the middle of the night? bnClock (big numbers clock) provides the largest numbers your iPhone or iPad will allow. Great to use as travel alarm clock. Also a great use for an old iPhone or iPad. bnClock displays the current weather conditions and the forecast based on your current location. If you prefer, choose a particular location for the forecast. Or, turn off the weather display. Choose a built-in alarm sound, or a song from your music library to use for the alarms. Now with custom background colors, or, use a photograph or slide show as a background.
Round Millisecond Clock
This app offers a precise real-time digital clock with a unique circular interface, displaying both seconds and milliseconds. Customize your view with options for date, day of the week, and 12/24-hour format.
- Millisecond precision display
- Dual circle interface for seconds and milliseconds
- Customizable display (milliseconds, seconds, date, day)
- Multiple date formats
- 12/24 hour support
- Screen always on
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A real-time digital clock app that displays both seconds and milliseconds with precision using a clean, circular dual-ring interface. [Key Features] - Millisecond Clock: Displays the current time with precision by supporting milliseconds. - Dual Circle Design: Display the flow of seconds and milliseconds simultaneously. - Full Customization: Toggle milliseconds, seconds, date, day of week - Multiple Date Formats: US, EU, ISO, and short formats - 12/24H Support: Includes AM/PM indicator [Additional Features] - Landscape & Portrait support - Screen always on - No permissions required
Screenshots
Verdict
The clearest difference is review sentiment: bnClock at 55% against Round Millisecond Clock's 0%. bnClock also leads on rating (3.9 vs 1.0) and ads (none vs 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.
bnClock holds the better App Store score, 3.9 against 1.0. That said, the two scores are not equally well evidenced: bnClock has 35 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 55% of bnClock's written reviews are positive against 0% of Round Millisecond Clock's.
bnClock ships an update every 2 months, Round Millisecond Clock every 4 months. The most recent releases landed on October 11, 2026 and September 25, 2026 respectively.
| Parameter | bnClock | Round Millisecond Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (35 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 55.2% of reviews — better | 0.0% of reviews |
| Number of ratings | 35 — better | 1 |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 16 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Jim Calvin | Seulki Eom |
Customer experience
bnClock
Round Millisecond Clock
In-app purchases
bnClock
No in-app purchases
Round Millisecond Clock
No in-app purchases
Questions
Is bnClock free?
Is Round Millisecond Clock free?
Which has better reviews, bnClock or Round Millisecond Clock?
Do bnClock or Round Millisecond Clock have ads?
Which is updated more often, bnClock or Round Millisecond Clock?
Other comparisons
