Comparison

DOY vs My Water

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

Head to head
About

DOY

This app helps you track important upcoming events by counting down the days. It also provides the Day Of Year and sunrise/sunset times for each event based on your location.

Highlights
  • Countdown to user-defined events
  • Displays Day Of Year for events
  • Provides sunrise and sunset times
  • Location-based sunrise/sunset data
  • Inspired by military 'short timer' tapes
Features
Read full description

They say don't count the days, make the days count. Why not do both? 40 years ago, when I was serving in the U.S. Army Field Artillery, the PX sold tapes with tear-away numbers, allowing 'short timers' to countdown the days as they neared the end of their active duty service. Those tapes are the inspiration for DOY, which tracks the number of days until a user configurable set of events. As a bonus, for each upcoming event, DOY also provides the Day Of Year, and sunrise and sunset times based on your current longitude and latitude.

About

My Water

Features
Read full description

My Water is essential to our life . Drinking enough and the right quantity of water is vital for our health. My Water will help you to calculate how much water your body needs, will track your hydration and gently remind you to drink water to fulfill your goal. If you do not know how much you need to drink each day, no problem! Our app has a super water calculator to help you. Just enter your weight and My Water tells how much you should drink per day. You do not need to worry about remembering to drink water, just set the time you wake up, the time you go to bed and our app does the rest. It will send you notifications during the day to remind you the right time to drink. Discover statistics regarding your water consumption. Download it for free now and check it out. - Calculate how much water you should drink per day based on your weight - Schedule notifications according to the time you wake up and sleep - Track your historical consumption during the month and week - Simple, beautiful and intuitive Download now and see! Do you have questions or feedback? Feel free to contact us atwallsthased@gmail.com

Screenshots

DOY4 screens
My Water4 screens

Verdict

The call

The clearest difference is update cadence: My Water at weekly against DOY's every 4 months. My Water also leads on iOS requirement (13.0 vs 15.0). 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

DOY ships an update every 4 months, My Water weekly. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
DOY versus My Water: the parameters behind the verdict, then further details
ParameterDOYMy Water
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 4 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size6 MB55 MB
Age rating4+4+
DeveloperDaniel HansenSwallow Shuai Technology Development Co., Ltd.

In-app purchases

None

DOY

No in-app purchases

None

My Water

No in-app purchases

Questions

Is DOY free?
DOY is free to download, with no in-app purchases.
Is My Water free?
My Water is free to download, with no in-app purchases.
Do DOY or My Water have ads?
Neither DOY nor My Water shows ads.
Which is updated more often, DOY or My Water?
DOY ships an update every 4 months, and My Water weekly. Most recently, DOY was updated on October 20, 2026 and My Water on October 25, 2026.

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