Comparison

Sip vs Phase

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

Head to head
About

Sip

Features
Read full description

Is "drink 8 glasses a day" really right for you? Your gender, weight, activity level, and today's weather all affect how much water you actually need. One-size-fits-all goals don't work because hydration needs change daily. Sip is your personal hydration coach powered by science. We calculate your optimal daily water intake using the Beverage Hydration Index (BHI) - the same method researchers use to measure how different drinks actually hydrate your body. WHY SIP IS DIFFERENT 1. SCIENTIFIC PERSONALIZATION Enter your height, weight, age, and lifestyle. Sip calculates your precise hydration needs using medical research and physiological data. No more guessing. 2. WEATHER-ADAPTIVE GOALS Hot summer day? Cold winter morning? Sip automatically adjusts your daily target based on real-time temperature and humidity data from your location. Stay ahead of dehydration before it happens. 3. SMART BEVERAGE TRACKING (BHI) Not all drinks hydrate equally. Coffee, tea, juice, and water affect your body differently. Sip uses Beverage Hydration Index theory to calculate "net hydration" - accounting for caffeine's diuretic effects and alcohol's dehydrating properties. Coffee lovers can finally track hydration accurately. 4. INTELLIGENT REMINDERS Never forget to drink again. Sip sends perfectly-timed notifications based on your routine: morning wake-up, evening wind-down, and gentle nudges when you have not logged drinks for a while. Build healthy habits without nagging. WHO SIP HELPS - Health enthusiasts seeking data-driven hydration - Busy professionals who forget to drink water - Coffee and tea drinkers wanting accurate tracking - Athletes and active individuals - Anyone focused on skin health and beauty - People managing weight through mindful hydration - Those preventing heat-related illness in summer KEY FEATURES - Personalized daily hydration goals - BHI-based beverage tracking - Real-time weather integration - Caffeine intake monitoring - Smart reminder system - Hydration history and trends - Educational hydration guide - Beautiful, intuitive interface THE SCIENCE BEHIND SIP Traditional water trackers treat all fluids the same. They are wrong. Research shows that beverages with caffeine, alcohol, or high sugar content hydrate your body differently than plain water. Sip's BHI calculations account for these differences, giving you the true picture of your hydration status. Your body loses water constantly through breathing, sweating, and digestion. Sip ensures you replace exactly what you need - not too little, not too much. START YOUR HYDRATION JOURNEY TODAY Stop guessing. Start knowing. Download Sip and discover what optimal hydration feels like.

About

Phase

This app guides you through a personalized daily plan to gradually shift your sleep schedule. It provides timed nudges based on your local sunrise and sunset to help you achieve your desired bedtime and wake-up times.

Highlights
  • Personalized day-by-day sleep schedule
  • Science-backed daily nudges
  • Multiple sleep programs for different needs
  • Location-aware sunrise/sunset sync
  • Offline functionality
  • HealthKit integration
  • Home and Lock Screen widgets
Features
Read full description

Your sleep schedule is off. Phase shifts it back — one day at a time. Phase is a guided program that fixes your broken sleep schedule through small, progressive daily shifts. No vague advice. No endless tracking. Just a clear plan that moves your bedtime and wake time closer to your goal — 15 minutes at a time. Tell Phase when you currently sleep, when you want to sleep, and it builds a personalized day-by-day plan to get you there. HOW IT WORKS - Pick a program that fits your situation - Set your current and goal sleep times - Get a personalized day-by-day schedule - Follow science-backed daily nudges - Watch your sleep shift into place 6 SLEEP PROGRAMS Phase is not one-size-fits-all. Pick the program that matches your situation: - Sleep Schedule Reset — the original 14-day phase shift - Night Owl Fix — stop going to bed at 3 AM - Jet Lag Recovery — get back on local time fast - Weekend Drift Reset — fix the Sunday-night-to-Monday-morning gap - Shift Work Transition — adjust to a new work schedule - Early Riser Challenge — become a morning person in two weeks YOUR DAILY NUDGES Every day, Phase gives you timed nudges based on your schedule and your local sunrise and sunset: - Morning Light — get sunlight early to reset your internal clock - Caffeine Cutoff — stop caffeine at the right time so it does not interfere with sleep - Screen Dim — reduce blue light before bed to protect melatonin - Wind Down — start your pre-sleep routine at the right moment - Bedtime — hit the pillow at your new target time All nudge times adjust automatically as your schedule shifts forward each day. Toggle nudges on or off and fine-tune timing to fit your life. WIDGETS AND LIVE ACTIVITY - Home Screen and Lock Screen widgets for sun position, nudge checklist, bedtime countdown, and sleep stats - Bedtime Live Activity — a countdown on your Lock Screen and Dynamic Island as bedtime approaches - Bedtime alarm that rings through Silent Mode and Do Not Disturb WHAT MAKES PHASE DIFFERENT - A real program, not a tracker — a clear plan with a finish line - Location-aware — nudge times sync with your actual sunrise and sunset - Works offline — no account, no login, no cloud - Science-backed — based on circadian rhythm research - Beautiful Sun Arc — a visual map of your day showing light, nudges, and targets - Schedule exceptions — have an early flight? Adjust one day without breaking your plan - Takes 30 seconds to set up TRACK YOUR PROGRESS See your journey laid out. Check off each day. Build streaks. Get encouragement when you need it. Know exactly how far you have come and how close you are to your goal. HEALTHKIT INTEGRATION Phase reads your sleep, sunlight, exercise, and caffeine data from Apple Health to auto-verify nudges and show activity bars on your daily timeline. Phase never writes to HealthKit — your data stays yours. BUILT FOR FOCUS No charts. No dashboards. No social features. Phase does one thing and does it well — it fixes your sleep schedule. Your body has a clock. Phase helps you reset it. Terms of Use: https://www.theblackholecompany.com/termsConditions.html

Screenshots

Sip4 screens
Phase4 screens

Verdict

The call

The clearest difference is in-app purchases: Sip at none against Phase's 6. Sip also leads on iOS requirement (15.1 vs 17.0). Phase's advantage is ads (none vs shown). On price, update cadence 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. Phase sells 6 in-app purchases, starting at $0.99 per 7 days. Sip asks for nothing beyond the download.

UpkeepUpdate frequency

Sip ships an update every 2 months, Phase every 5 weeks. The most recent releases landed on September 18, 2026 and August 31, 2026 respectively.

Scorecard3 real differences · 7 level
Sip versus Phase: the parameters behind the verdict, then further details
ParameterSipPhase
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size28 MB32 MB
Age rating4+4+
Developerakira kawataYoussef Ismaili

In-app purchases

None

Sip

No in-app purchases

6 purchases

Phase

Subscriptions2
  • Phase Pro$0.997 Days
  • Phase Pro$5.991 Year
One-time4
  • Lifetime Phase Pro$1.99
  • Pro$2.99
  • Lifetime Pro$4.99
Show 1 more
  • Phase Pro$9.99

Questions

Is Sip free?
Sip is free to download, with no in-app purchases.
Is Phase free?
Phase is free to download, with in-app purchases available.
Do Sip or Phase have ads?
Sip shows ads; Phase does not.
Which is updated more often, Sip or Phase?
Sip ships an update every 2 months, and Phase every 5 weeks. Most recently, Sip was updated on September 18, 2026 and Phase on August 31, 2026.

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