Comparison

Happy Place Science vs Caffeine Tracker

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

Head to head
About

Happy Place Science

This app helps companies monitor and reduce employee stress through guided meditation and relaxation exercises. It offers daily stress level tracking, expert-assigned meditations and tests, and provides reports on user progress. The goal is to boost motivation and productivity by managing stress.

Highlights
  • Daily stress level monitoring
  • Expert-guided meditations
  • Expert-assigned tests
  • Tips and advice
  • Calendar and schedule overview
  • Progress reports
Features
Read full description

As a result of a large number of obligations and tasks on a daily basis, we increasingly encounter a decline in motivation, productivity and enthusiasm for work, which is a direct consequence of an increase in stress levels. The Happy place application is designed in such a way that it offers companies a solution for monitoring and reducing the stress level of employees through exercises and programs for meditation and relaxation. The Happy Place science app offers the following options: - Monitoring stress levels on a daily basis by category - View and listen to meditations assigned by experts - Creation of tests assigned by experts - Overview of tips - Overview of the calendar and exercise schedule - Review of reports based on completed tests and listened meditations Application language: - English

About

Caffeine Tracker

This app helps you track your caffeine intake and understand its impact on your sleep. It provides personalized insights into your caffeine metabolism, allowing you to build better habits and brew coffee like a pro. Syncs with Apple Health for comprehensive sleep analysis.

Highlights
  • Log caffeine intake with custom drinks
  • Personalized metabolism curve and half-life
  • Caffeine level forecasts
  • Sleep rating and efficiency tracking
  • Brewing calculator and timer
  • Apple Health integration
  • Detox planner
Features
Read full description

Doppio is a native caffeine tracker that estimates how much caffeine is still in your system right now — and how it fades over the hours ahead. Log drinks in a tap, watch your levels decay on a personalized metabolism curve, and finally answer the question that matters: which cup can you still have before bed? TRACK EVERY CUP • 21 built-in drinks plus custom entries • Adjust serving size from 10–100% • Edit, annotate, and delete past entries • Real-time caffeine level based on your personal half-life • History for today, the last few days, this week, or the last month KNOW YOUR METABOLISM • A quick onboarding questionnaire estimates your caffeine sensitivity • Your personalized half-life powers every chart, widget, and forecast BUILD BETTER HABITS • Home suggests what you can still drink before bed, and how many servings fit — plus how the forecast is worked out • Daily limit with notifications • Under-limit streaks with milestone celebrations • A morning suggestion that adapts to how you actually slept • Rate how you slept each night, and see efficiency, awakenings, and sleep stages when Health has the data BREW LIKE A PRO • Caffeine and ratio calculator for 11 methods, from French press to Turkish coffee and a La Pavoni lever • Brew timer with a Lock Screen and Dynamic Island Live Activity • Start your favorite saved brew with Siri or a Shortcut AT A GLANCE • Home Screen widget with your caffeine level, also built for StandBy • One-tap logging from the widget and Control Center, or open straight to the drink picker • Log, check, and undo with Siri — or find your drinks and brews in Spotlight ACROSS YOUR DEVICES • iCloud keeps your caffeine log, coffee shelf, and saved brews in sync • Works on iPhone, iPad, and iPhone Duo, in portrait and landscape APPLE HEALTH • Two-way caffeine sync — write what you log, or import caffeine already in Health, your Apple Watch, or another app • Sleep read and headache-symptom logging • Every sync is opt-in and controlled by you ACCESSIBLE TO EVERYONE • VoiceOver throughout, with charts you can listen to and brew timers that speak • Clear text in every theme, plus Reduce Motion and larger text sizes • A simplified Assistive Access version of Doppio for people who want fewer choices DOPPIO PRO Everything above is free. Doppio Pro adds: • Caffeine Insights — your personal last-coffee time, a Last Call reminder before it, your full stats, and a day-by-day breakdown of everything you've logged • Full History — every day you've ever logged, beyond the last month • Caffeine & Sleep Insights — see how your sleep score changes on high- and low-caffeine nights. Your first finding is free. • Detox Planner — guided 7–30 day plans to cut back, with symptom tracking. Preview your plan for free. • Saved Brews — your first recipe is free; save more and start any in one tap, from the app, a widget, or Siri • Coffee Shelf — keep your beans, roasters, and ratings in one place — with photos and storage tracking • Five extra app themes • Larger Home Screen widgets with your metabolism curve and detox progress Doppio Pro is available as a yearly subscription or a one-time lifetime purchase. Installed Doppio before version 3.0.0? Full history and your last-coffee time stay free for you. Available in English, German, Spanish, French, Italian, Dutch, Portuguese (Portugal and Brazil), Japanese, Korean, Turkish, and Serbian. Caffeine figures in Doppio are estimates. They come from a standard half-life model adjusted by the answers you give during setup — not from measuring your body. Doppio is not a medical device and does not provide medical advice; talk to a clinician about specific health concerns. Your data stays on your device and in your private iCloud unless you enable Apple Health sync. Doppio uses anonymous usage analytics, which never include your caffeine logs, health samples, or notes.

Screenshots

Happy Place Science4 screens
Caffeine Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: Happy Place Science at none against Caffeine Tracker's 2. Happy Place Science also leads on iOS requirement (15.0 vs 18.0). On price, rating, ratings volume and update cadence 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. Caffeine Tracker sells 2 in-app purchases, starting at $6.99 per year. Happy Place Science asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Happy Place Science against 5.0 for Caffeine Tracker. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Happy Place Science ships an update every 11 days, Caffeine Tracker every 8 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Happy Place Science versus Caffeine Tracker: the parameters behind the verdict, then further details
ParameterHappy Place ScienceCaffeine Tracker
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 11 daysEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size45 MB25 MB
Age rating12+4+
DeveloperAmplitudo dooMOBILE CODING FACTORY DOO

Customer experience

Happy Place Science

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Caffeine Tracker

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Happy Place Science

No in-app purchases

2 purchases

Caffeine Tracker

Subscriptions1
  • Doppio Pro Yearly$6.991 Year
One-time1
  • Doppio Lifetime$14.99

Questions

Is Happy Place Science free?
Happy Place Science is free to download, with no in-app purchases.
Is Caffeine Tracker free?
Caffeine Tracker is free to download, with in-app purchases available.
Which has better reviews, Happy Place Science or Caffeine Tracker?
Happy Place Science and Caffeine Tracker are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Happy Place Science or Caffeine Tracker have ads?
Neither Happy Place Science nor Caffeine Tracker shows ads.
Which is updated more often, Happy Place Science or Caffeine Tracker?
Happy Place Science ships an update every 11 days, and Caffeine Tracker every 8 days. Most recently, Happy Place Science was updated on November 3, 2026 and Caffeine Tracker on October 31, 2026.

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