Comparison

Sada vs Waterd

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

Head to head
About

Sada

Features
Read full description

See Your Breath. Build Your Habit. Sada is the smart companion designed to modernize your respiratory wellness practice. Optimized for use with the acapella™ Choice device, Sada transforms the sound of your exhalation into actionable visual feedback — in real time. Breathing practice using the acapella™ Choice device is often invisible, making it hard to know if you're doing it right. Think of Sada as a mirror that remembers your best effort. It captures your unique breathing pattern during setup to create a personalized visual guide — your "Sweet Spot." During daily practice, Sada reflects this pattern back to you, challenging you to match the reflection and stay in your "Sweet Spot". WHY CHOOSE SADA? • VISUALIZE THE INVISIBLE Stop guessing. Watch your exhalation in real-time to ensure every breath matches your personal best. • GAMIFY YOUR PRACTICE Turn a daily routine into an engaging challenge. Your goal is simple: overlay your live breath onto your personal baseline. Match the reflection, keep your score high, and unlock achievements as you build your streak. • YOUR ACCOUNTABILITY PARTNER Forget manual entry. Sada automatically logs every breath count, session duration, and daily streak — so you can focus entirely on breathing. • PROGRESS TRACKING View your history at a glance. Identify your best practice times, compare periods, and discover personalized insights. • COACHING TIPS Receive personalized guidance to optimize your breathing technique based on your practice patterns. • PDF PROGRESS REPORTS Download professional PDF reports of your practice data — your progress, your records. HOW SADA WORKS 1. CALIBRATE — On first use, Sada listens to capture your unique baseline — your personal Sweet Spot. 2. BREATHE — During practice sessions, exhale into your device while watching the adaptive visual cues. 3. MATCH — Keep the indicator within your Sweet Spot to maximize your consistency score. 4. TRACK — Review your practice history and progress, keep your streak alive, and celebrate your milestones. PRIVACY BY DESIGN Your health data stays yours. Sada processes all audio analysis locally on your device. No audio recordings are ever stored, transmitted, or uploaded. The app listens only to visualize, never to record. DISCLAIMERS Sada is a General Wellness Tool intended for educational, relaxation, and habit-tracking purposes only. NOT A MEDICAL DEVICE: Sada does not diagnose, cure, treat, or prevent any disease or medical condition. USER-DEFINED METRICS: The "Sweet Spot" and "Quality Score" are relative benchmarks based on your calibration. They do not represent clinical measurements. CONSULT YOUR PHYSICIAN: This app is a companion tool for adherence and motivation. It does not replace the advice of your healthcare provider. TRADEMARK NOTICE: Sada is an independent application, not affiliated with or endorsed by ICU Medical Inc. "acapella" is a registered trademark of ICU Medical Inc. Download Sada today and transform your daily breathing practice into a habit you can see, track, and improve.

About

Waterd

Features
Read full description

The hydration tracker you never open. Waterd uses Apple Intelligence on supported devices to set your daily water goal based on your activity, the weather, and how you've been hydrating this week — automatically, on-device, no cloud. On devices without Apple Intelligence, Waterd uses a built-in formula based on your weight, activity, and weather forecast. Then it gets out of your way. Tap your bottle from the Home Screen widget, the Lock Screen, the Dynamic Island, your Apple Watch, or a notification action. Each tap is one drink, logged in under five seconds. The app exists for weekly reflection, not daily logging. PREMIUM — three ways to unlock • Monthly — $1.99/month with a 7-day free trial • Yearly — $4.99/year • Lifetime — $7.99 one-time purchase All three unlock the same premium features: • Personalized daily hydration goals that account for your activity and the weather • Weekly insights that explain your hydration patterns in plain English • Runs entirely on-device where Apple Intelligence is available ZERO FRICTION • Home Screen interactive widgets • Lock Screen widgets and StandBy support • Apple Watch complications and Smart Stack widget • Live Activity in the Dynamic Island • Notification action buttons that log without opening the app PRIVATE BY DESIGN • All data stays on your device. No accounts, no email collection. • Apple Intelligence runs entirely on-device where available. • HealthKit-compatible. Your water intake syncs with Apple Health. • No tracking. No ads. No social feeds. HOW GOALS ARE CALCULATED Waterd suggests goals based on widely-cited references (National Academies of Sciences, Mayo Clinic, ACSM, CDC). Full sources and citations are inside the app under Settings → How goals are calculated, and from every screen where the goal is shown. Waterd is a general wellness app and is not a medical device. SUBSCRIPTION TERMS Monthly and Yearly are auto-renewable subscriptions charged to your Apple ID. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Free trial converts to a paid subscription at the end of the trial. Manage or cancel in Settings → Apple ID → Subscriptions. Terms of Use: https://www.tapwaterdata.com/terms/app Privacy Policy: https://www.tapwaterdata.com/privacy/app

Screenshots

Sada4 screens
Waterd4 screens

Verdict

The call

The clearest difference is iOS requirement: Sada at 18.6 against Waterd's 26.0. 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. Sada sells 2 in-app purchases, starting at $4.99 per month and Waterd sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 7 level
Sada versus Waterd: the parameters behind the verdict, then further details
ParameterSadaWaterd
PriceFreeFree
Rating—4.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Every 3 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad — betteriPhone
Requires iOS18.6 — better26.0
Further details — not scored
Size38 MB11 MB
Age rating4+4+
DeveloperMohammad KhasawnehWenjie Zhang

In-app purchases

2 purchases

Sada

Subscriptions2
  • Sada Premium Monthly$4.991 Month
  • Sada Premium Annual$29.991 Year
3 purchases

Waterd

Subscriptions2
  • Waterd Premium$1.991 Month
  • Waterd Premium$4.991 Year
One-time1
  • Waterd Premium Lifetime$7.99

Questions

Is Sada free?
Sada is free to download, with in-app purchases available.
Is Waterd free?
Waterd is free to download, with in-app purchases available.
Do Sada or Waterd have ads?
Neither Sada nor Waterd shows ads.

Other comparisons