Comparison

Headrest vs SipFlow

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

Head to head
About

Headrest

This app forecasts migraine risk based on barometric pressure changes and your personal history. It allows quick logging of attacks and detailed tracking of potential triggers and medication effectiveness. Your data is stored locally, ensuring privacy.

Highlights
  • Barometric pressure forecast
  • Daily and weekly risk levels
  • Evening alerts for high-risk days
  • Quick attack logging
  • Trigger and medication tracking
  • Local data storage
Features
Read full description

Most migraine apps record what already happened. Headrest tells you what's coming. Headrest watches the barometric pressure where you are and turns it into a risk level for today and the week ahead. When a pressure drop is on the way, you hear about it the evening before, while there's still time to sleep properly, drink water, and keep your medication within reach. WHEN AN ATTACK STARTS Two taps. Start and intensity, that's the whole log. Add the rest later, or never: where it hurts, aura, nausea, light sensitivity, what you took and whether it worked. Headrest is built for the moment when looking at a screen is the last thing you want to do. YOUR FORECAST • Barometric pressure for your location, with the drops that matter highlighted • A risk level for today and each of the next seven days • An alert the evening before an elevated or high-risk day • Sleep, cycle, caffeine, water and stress logged alongside the weather, so you can see which combination precedes your attacks YOUR PATTERNS • Attack days over the last 30 days, and your full history • Your triggers ranked by how often they show up before an attack, based on your own log rather than a general statistic • Every medication you took and whether it worked, so the record your doctor asks for is always there YOUR DATA STAYS YOURS Everything you log is stored on your device. Headrest doesn't sell your data and keeps no location history. Weather data comes from the Norwegian Meteorological Institute. INDEPENDENT Headrest is made by a small independent team. FREE AND PRO Free, with no time limit: today's risk level and the attack log. Pro: the seven-day forecast, evening alerts, the pressure chart and trigger insights. Headrest Pro is $39.99 per year after a 7-day free trial, or $7.99 per month. Headrest is not a medical device and does not diagnose or treat any condition. Barometric pressure is one of many possible triggers, and the risk level is an estimate based on your location's weather and your own logged history. Headrest helps you track your attacks and share that record with your doctor. Always follow your doctor's advice. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Privacy Policy: https://legal.evolui.io/apps/headrest/privacy Terms of Use: https://legal.evolui.io/apps/headrest/terms

About

SipFlow

Features
Read full description

SipFlow turns drinking water into a tiny daily ritual with a friend. Remember the pocket pets of the 90s? Your droplet buddy is a tiny virtual pet that levels up as you drink water. Name it, take a sip, tap. It wobbles, splashes and smiles, and your day fills up one sip at a time. No measuring cups, no typing numbers. TAP AFTER EVERY SIP • One tap logs one sip, sized to you from your answers during setup • Undo in a tap if you pressed by accident • A gentle daily goal you can change any time A BUDDY THAT GROWS WITH YOU • 13 levels with a gift on every new one • Pet your buddy, dress it up with accessories and colors • Mini-games that never log water BATTLE WITH FRIENDS • Send a friend your code and see who drinks more water today • Get a nudge when a friend starts drinking or pulls ahead • Every morning, find out who won yesterday • No sign-up, just a name. Leave and delete your battle account any time STREAKS WITHOUT GUILT • A day counts as soon as you take one sip • New buddy colors at 3, 5, 7, 14 and 30 days in a row • Share a streak card with a friend • Missed a day? Just start again, no scolding ALWAYS AT HAND • Home Screen and Lock Screen widgets with a sip button • Live Activity on the Lock Screen and in the Dynamic Island • Friendly reminders at the hours you choose • A calendar of past days SIPFLOW PLUS Plus adds rescue days (two a month, so a missed yesterday doesn't break your streak), three more games (Lily Jump, Little Drops 2048 and Catch the rain), the Apple Watch app, Live Activity, coffee colors and the pink bow, and unlocks gift colors right away. Choose Monthly, Yearly (first week free) or Forever, a one-time purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel in Settings › Apple Account › Subscriptions. PRIVATE BY DESIGN No ads, no analytics, no tracking, no sign-up. Your data stays on your device; the battle shares only your name, your buddy and today's water with friends you add. SipFlow estimates intake from taps. It doesn't measure what you drink and isn't medical advice. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://stanleyappdev.github.io/sipflow/privacy.html

Screenshots

Headrest4 screens
SipFlow4 screens

Verdict

The call

The clearest difference is update cadence: SipFlow at every 2 days against Headrest's every 10 days. Headrest's advantage is iOS requirement (15.1 vs 17.0). 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. Headrest sells 5 in-app purchases, starting at $7.99 per month and SipFlow sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Headrest ships an update every 10 days, SipFlow every 2 days. The most recent releases landed on October 26, 2026 and November 1, 2026 respectively.

Scorecard2 real differences · 7 level
Headrest versus SipFlow: the parameters behind the verdict, then further details
ParameterHeadrestSipFlow
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 10 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.1 — better17.0
Further details — not scored
Size65 MB9 MB
Age rating12+4+
DeveloperEvolui ABStanislav Kotlyarenko

In-app purchases

5 purchases

Headrest

Subscriptions5
  • Pro Monthly$7.991 Month
  • Pro Annual Offer$19.991 Year
  • Pro Annual$39.991 Year
Show 2 more
  • Pro Annual3 Days trial$39.991 Year
  • Pro Annual3 Days trial$49.991 Year
3 purchases

SipFlow

Subscriptions2
  • SipFlow Plus Monthly$2.991 Month
  • SipFlow Plus Yearly7 Days trial$14.991 Year
One-time1
  • SipFlow Plus Forever$29.99

Questions

Is Headrest free?
Headrest is free to download, with in-app purchases available.
Is SipFlow free?
SipFlow is free to download, with in-app purchases available.
Do Headrest or SipFlow have ads?
Neither Headrest nor SipFlow shows ads.
Which is updated more often, Headrest or SipFlow?
Headrest ships an update every 10 days, and SipFlow every 2 days. Most recently, Headrest was updated on October 26, 2026 and SipFlow on November 1, 2026.

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