Comparison

Water Reminder vs Stack

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

Head to head
About

Water Reminder

This app helps you stay hydrated by reminding you to drink water throughout the day. It allows you to log various beverages and accounts for their different hydration levels. Enjoy convenient logging with widgets and ensure your data remains private on your device.

Highlights
  • Personalized hydration reminders
  • Log diverse beverage types
  • Accounts for drink hydration differences
  • Home and Lock Screen widgets
  • Private data storage on device
  • Customizable quick sips
Read full description

Brim reminds you to drink through a busy day and makes hydration tracking effortless. It's versatile. Log the specific drinks you reach for — cold brew, herbal tea, a smoothie. It's honest. Every beverage hydrates you differently, and Brim accounts for that. It's simple. Easy to use, it does one thing. No challenges, no characters, no other noise. It's convenient. Save your regular drinks as quick sips and log them from your Home or Lock Screen widgets. It's private. All your data stays on your phone and never leaves it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://brimwater.app/privacy

About

Stack

Features
Read full description

Stack is the supplement tracker that finally looks as good as the rest of your day. Track your vitamins, supplements and medications, get reminders so you never miss a dose, and build a streak that keeps you consistent. No clutter. No noise. Just a calm, beautiful daily ritual that takes seconds. BUILD YOUR STACK Add anything you take in seconds with smart suggestions from a built-in library of vitamins, minerals, supplements and common medications. Everything is organised automatically by time of day. NEVER MISS A DOSE Set gentle reminders around your routine. Mark each one taken with a single tap and watch your day fill in. Morning, midday, evening or night, Stack keeps you on track. KEEP YOUR STREAK Consistency is what actually delivers results. Stack counts your daily streak and celebrates the milestones that keep the habit alive. MEET YOUR ADVISOR Unlock a personal supplement advisor that knows your goals, diet and routine. Get a full review of your stack, spot gaps and interactions, and fine-tune your timing and doses. Ask anything in plain language, and go deeper into the science whenever you want. Add any recommendation to your stack with one tap. PRIVATE BY DESIGN Your data stays on your device. No accounts, no ads, no tracking, ever. Stack Pro unlocks the Advisor with a 7-day free trial, then a simple subscription. Cancel anytime. Stack provides general information about supplements and nutrition. It is not a substitute for professional medical advice, diagnosis or treatment. Always consult a qualified healthcare professional before changing your supplement or medication routine. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Water Reminder4 screens
Stack4 screens

Verdict

The call

The clearest difference is update cadence: Stack at every 3 days against Water Reminder's weekly. 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. Water Reminder sells 5 in-app purchases, starting at $1.99 per 7 days and Stack sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Water Reminder ships an update weekly, Stack every 3 days. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

Scorecard1 real difference · 9 level
Water Reminder versus Stack: the parameters behind the verdict, then further details
ParameterWater ReminderStack
PriceFreeFree
Rating4.6 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS18.017.0 — better
Further details — not scored
Size42 MB9 MB
Age rating+124+
DeveloperSYRNIK LTDHenry Hinge

In-app purchases

5 purchases

Water Reminder

Subscriptions4
  • Brim Premium (Weekly)$1.997 Days
  • Brim Premium (Weekly)3 Days trial$2.997 Days
  • Brim Premium (Yearly)$24.991 Year
Show 1 more
  • Brim Premium (Yearly)3 Days trial$29.991 Year
One-time1
  • Brim Premium (Lifetime)$39.99
2 purchases

Stack

Subscriptions2
  • Stack Pro7 Days trial$5.991 Month
  • Stack Pro7 Days trial$39.991 Year

Questions

Is Water Reminder free?
Water Reminder is free to download, with in-app purchases available.
Is Stack free?
Stack is free to download, with in-app purchases available.
Do Water Reminder or Stack have ads?
Neither Water Reminder nor Stack shows ads.
Which is updated more often, Water Reminder or Stack?
Water Reminder ships an update weekly, and Stack every 3 days. Most recently, Water Reminder was updated on October 4, 2026 and Stack on October 10, 2026.

Other comparisons