Comparison

ms clock vs Jongchyeotda

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ms clock

This app offers highly accurate timekeeping with millisecond precision. It includes a stopwatch with lap times and a customizable countdown timer, suitable for various activities and personal preferences.

Highlights
  • Millisecond precision clock
  • Stopwatch with lap time
  • Countdown timer
  • Customizable fonts and sizes
  • Dark and light modes
  • Full-screen mode
Features
Read full description

Meet the ultimate time tool! Millisecond Clock is more than just a precise digital clock. It's a versatile app now equipped with a stopwatch and timer to meet all your time-tracking needs. [Key Features] 1) Millisecond Precision Clock Track time with extreme precision down to the millisecond (1/1000th of a second). Perfect for when every moment counts. 2) Stopwatch with Lap Time Measure elapsed time with millisecond accuracy. Includes a lap time feature, ideal for sports, workouts, and performance tracking. 3) Countdown Timer Set countdowns for any task. Perfect for cooking, studying, presentations, or any activity requiring time management. 4) Full Customization Make it your own! Personalize your clock with various font styles and adjustable font sizes for perfect readability. 5) Dark & Light Modes Easy on the eyes, day or night. Switch between a sleek Dark Mode (Night Mode) and a clear Light Mode (Day Mode) to suit your environment. 6) Full-Screen Mode Immerse yourself with a distraction-free, full-screen view. Perfect for use as a desk clock or for focused tasks.

About

Jongchyeotda

Read full description

No subscription · No ads · No account · One-time purchase An alarm that rings with school bells and school PA chimes. It is a real alarm, built the same way as the Clock app: it rings through Silent and Focus modes and takes over the Lock Screen. When this sound goes off in the morning, your body gets up before you do. ■ 10 sounds — every one made from scratch for this app Each sound is synthesized as the bright electronic chime of a school PA speaker (glockenspiel timbre). None are recordings of real schools or exam halls, and every melody is public domain. - Für Elise — Beethoven WoO 59, the opening 16 bars. Default sound - Maiden's Prayer — Bądarzewska Op. 4, introduction and theme - Class Start — Westminster chimes - Class End — Westminster chimes, short form - Old Electric Bell — the hallway ring - Ding-Dong Chime — do-mi-sol-do, rising - Broadcast Chime — the four notes before the PA mic turns on - Exam Warning Bell — two notes, repeated - Exam Start Bell — a four-note chime with a confirm - Lunch Chime — the lunchtime jingle New sounds arrive as free updates. ■ Alarms - Edits like the Clock app: time, repeat by weekday, label, sound, snooze, on/off - Rings through the Silent switch and Focus modes. Full Lock Screen alert with Stop and Snooze - Snooze: 5, 9 or 10 minutes (9 by default). The countdown shows on the Lock Screen and in the Dynamic Island - Leave the label empty and the sound name becomes the Lock Screen title - Tap any sound to preview it before choosing ■ Not here Subscriptions, ads, accounts, mission alarms, sleep tracking, communities. Alarms stay on your device. Only anonymous usage statistics are sent to improve the app (no labels, no times, no personal data). ■ Requirements iPhone with iOS 26.1 or later. The only permission used is alarms (no microphone, location, contacts or photos). Support: contact@logogram.studio

Screenshots

ms clock4 screens
Jongchyeotda4 screens

Verdict

The call

The clearest difference is price: ms clock at Free against Jongchyeotda's $0.49. ms clock also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.1). Jongchyeotda's advantage is ads (none vs shown). On in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

ms clock is free to download; Jongchyeotda costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard4 real differences · 6 level
ms clock versus Jongchyeotda: the parameters behind the verdict, then further details
Parameterms clockJongchyeotda
PriceFree — better$0.49
Rating4.2 (10 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 2 months—
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better26.1
Further details — not scored
Size55 MB11 MB
Age rating4+4+
DeveloperSeulki EomLogogram LC.

In-app purchases

None

ms clock

No in-app purchases

None

Jongchyeotda

No in-app purchases

Questions

Is ms clock free?
ms clock is free to download, with no in-app purchases.
Is Jongchyeotda free?
Jongchyeotda costs $0.49, with no in-app purchases.
Do ms clock or Jongchyeotda have ads?
ms clock shows ads; Jongchyeotda does not.

Other comparisons