Comparison

One Day vs Clock Stamp

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

Head to head
About

One Day

This app helps you plan and remember daily tasks with simple reminders. Set custom alerts for health, family, exercise, and more with a variety of icons. Stay organized and ensure you never miss an important activity.

Highlights
  • Easy reminder setup
  • Morning, noon, evening scheduling
  • Over 50 event icons
  • Health and medication reminders
  • Childcare task reminders
  • Exercise and fitness alerts
  • Daily prayer reminders
Read full description

Do you have too many things to do, but often forget?Here, we bring you a multi-functional APP that can help you plan daily routine works. You can use it to take care of your health or your new born baby. It can remind your daily life in a simple way. Features: 1. Just a few tap to complete the reminder. 2. You can choose morning, noon or evening. 3. More than 50 event icons for selection. 4. Remind to drink water,coffee,or soda. 5. Remind medication or blood pressure, etc., healthy life record. 6. Remind taking care of children to drink milk, change diapers, read, play, etc. 7. Remind you to exercise and fitness time, whether yoga, swimming or running. 8. Daily prayer of your faith How to use: 1. Entry the name of your plan. 2. Set the time(morning,noon,evening). 3. Click the amount or time. 4. Choose your unit. 5. Choose your icon. 6. Add your plan. 7. It will send a notification when time is up. 8. Click the task to turn on or turn off the reminder. 9. Long press the to delete the task. If you need more icons or requirements, please leave a message to us, thank you.

About

Clock Stamp

This app displays multiple city time zones on a single, elegant clock face. It provides visual context for day, night, and weather in each location, aiding in travel planning and international communication.

Highlights
  • Multiple city time zones
  • Visual analog world clock
  • Local time difference display
  • Weather and day/night context
  • 12-hour and 24-hour modes
  • Light and dark appearance
Features
Read full description

Clock Stamp makes world time easy to read. See the time in several cities at once on one elegant dial, and check time differences, whether it's day or night, and the local weather at a glance. • Dial: every city sits on the dial, so time differences and daylight are clear at a glance • City search: search Apple Maps for cities and towns worldwide, and add as many as you like • Local Time: follows your location, or uses your phone's time zone • Weather: local weather at a glance, with backgrounds and weather effects that follow each city's time and weather • iPhone Duo: controls within reach of your thumb on both displays, and a live map of Earth showing day and night when it's open • 12/24-hour dial, Light/Dark appearance, Celsius/Fahrenheit, two text sizes • Six languages: English, 简体中文, Français, Italiano, 日本語, 한국어 • Supports VoiceOver and Reduce Motion Made for working across borders, remote meetings, planning trips, studying abroad, and keeping in touch with friends and family in other time zones.

Screenshots

One Day4 screens
Clock Stamp4 screens

Verdict

The call

The clearest difference is rating: Clock Stamp at 5.0 against One Day's 4.5. Clock Stamp also leads on update cadence (every 2 days vs every 5 days). One Day's advantage is iOS requirement (13.0 vs 26.2). On price, ratings volume, ads and 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Clock Stamp holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

One Day ships an update every 5 days, Clock Stamp every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
One Day versus Clock Stamp: the parameters behind the verdict, then further details
ParameterOne DayClock Stamp
PriceFreeFree
Rating4.5 (2 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 5 daysEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better26.2
Further details — not scored
Size10 MB4 MB
Age rating4+4+
DeveloperNANOMAGZhicheng Chen

Customer experience

One Day

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Clock Stamp

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

One Day

No in-app purchases

None

Clock Stamp

No in-app purchases

Questions

Is One Day free?
One Day is free to download, with no in-app purchases.
Is Clock Stamp free?
Clock Stamp is free to download, with no in-app purchases.
Which has better reviews, One Day or Clock Stamp?
Clock Stamp is rated higher. One Day averages 4.5 out of 5 from 2 ratings, while Clock Stamp averages 5.0 from 1 ratings.
Do One Day or Clock Stamp have ads?
Neither One Day nor Clock Stamp shows ads.
Which is updated more often, One Day or Clock Stamp?
One Day ships an update every 5 days, and Clock Stamp every 2 days. Most recently, One Day was updated on November 3, 2026 and Clock Stamp on October 31, 2026.

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