Comparison

Caffeine App vs Foundry

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

Head to head
About

Caffeine App

Track your caffeine intake from various beverages and monitor your hydration levels. Visualize your caffeine curve over 24 hours and receive notifications for your optimal sleep time. Integrates with Apple Health and Apple Watch for seamless logging and data syncing.

Highlights
  • Log caffeine from coffee, tea, and energy drinks
  • Visualize 24-hour caffeine curve
  • Calculate optimal sleep time
  • Track daily water intake
  • Apple Watch logging and complications
  • Apple Health integration
  • iCloud sync
Features
Read full description

How much caffeine is still in your body? When can you fall asleep? Are you drinking enough water? Caffeine App gives you the answers — at a glance. Caffeine Tracking • Log every coffee, tea, espresso, energy drink, or mate • Scrollable 24-hour timeline shows your caffeine curve • See how much caffeine is currently in your system • Create custom drinks with individual caffeine amounts • Caffeine calculator for drinks with unusual sizes Optimal Sleep Time • Caffeine App calculates when you're ready to sleep • Get notified when your sleep time is reached • Set your personal caffeine limit and desired sleep time Water Tracking • Track your daily water intake with personalized goals • Save your favorite glass and bottle sizes • Customizable reminders to stay hydrated Statistics • Daily caffeine and water charts across your full history • See which drinks make up most of your caffeine • Compare your water intake against your daily goal Widgets • Caffeine Now: current caffeine level and 30-day history • Water Intake: today's progress towards your goal • Quick Log: log your favorite drink with one tap • Home Screen and Lock Screen widgets Apple Watch • Log caffeine and water right from your wrist • Daily charts for caffeine and water • Complications show your optimal sleep time More Features • Apple Health integration — caffeine and water entries stay in sync • iCloud sync across all your devices • Dynamic Type for optimal readability • URL scheme support

About

Foundry

Features
Read full description

Trained for the body. Anchored in faith. Foundry is a strength coach in your pocket. It builds you a 3-week training block from what you tell it — your goal, your equipment, your schedule, what hurts — and then it does the work with you, session by session. A PLAN THAT CHANGES WHEN YOUR DAY DOES Most apps give you the same workout whether you slept eight hours or two. Foundry doesn't. Short on time, sore, travelling with no gym? Tell the coach before you start and today gets reshaped, not skipped. A SESSION, START TO FINISH Tap Start Session and take it one movement at a time: sets, reps, RPE, tempo, rest and your training max on the card. Log a set with one tap. Hit a PR and Foundry calls it right there. Finish, say how it went — too easy, too brutal, just right — and tomorrow gets tuned off your answer. TELL IT, TAP YES, DONE Sore shoulder? Only 30 minutes? Need Thursday's session on Saturday? Say it to the coach in plain words and it puts the change up as a card. Tap Do it and your plan updates. Nothing changes until you say so. A COACH THAT KNOWS YOU Ask anything, any time. The coach has your plan, your logs and your history, so the answer is about you, not a generic article. When the block ends, one tap builds the next one, picking the progression up right where this one left off — toward your race if you've got one on the calendar. ROOTED IN SOMETHING DEEPER Every training day opens with a short devotional and a passage of scripture, read aloud if you want it. Faith is the foundation here, not a feature you switch on. WHATEVER YOU'RE TRAINING FOR Muscle, strength, Hyrox, everyday health, or your first week back after years off. Foundry meets you there. ALSO IN THE APP • Personal records tracked automatically, with a training max that moves with you • Run logging, with pace and mileage totals, for the days you're on the road • Progress: sessions, sets and load moved, week by week • Share cards for a finished session or the day's devotional • Reminders you turn on yourself, never at launch Foundry gives general fitness, nutrition and supplement guidance. It is not medical advice. Talk to your doctor before starting or changing a program. Foundry is for adults 18 and over. Foundry Membership is an auto-renewing monthly subscription, $24.99 a month. It unlocks the coach: plan building, adjusting a day, the coach chat and devotional audio. Payment is charged to your Apple ID when you confirm the purchase. It renews automatically unless you cancel at least 24 hours before the current period ends. Manage or cancel anytime in Settings under your Apple ID, Subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://foundry.novarahq.io/privacy

Screenshots

Caffeine App4 screens
Foundry4 screens

Verdict

The call

The clearest difference is update cadence: Foundry at fortnightly against Caffeine App's monthly. Foundry also leads on iOS requirement (15.0 vs 18.0). 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. Caffeine App sells 1 one-off in-app purchase and Foundry sells 2 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Caffeine App ships an update monthly, Foundry fortnightly. Both last shipped on November 6, 2026.

Scorecard2 real differences · 8 level
Caffeine App versus Foundry: the parameters behind the verdict, then further details
ParameterCaffeine AppFoundry
PriceFreeFree
Rating4.6 (341 ratings) — better—
Positive reviews73.7% of reviews—
Number of ratings341 — better—
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, Apple Watch, Vision Pro — betteriPhone, iPod
Requires iOS18.015.0 — better
Further details — not scored
Size20 MB2 MB
Age rating4+12+
DeveloperOleg MuellerNovara, LLC

Bugs and requests

Caffeine App

Reported bugs

10 issues
  • Sleep ready time displays current time instead of predicted sleep time
  • Cannot rename custom amounts until after adding them
  • Newly added custom amounts appear at bottom of list
  • Health app data from third-party apps not syncing
  • All presets missing in some versions
Show 5 more
  • HealthKit integration broken in certain versions
  • Shift work time differential not processed correctly
  • Outdated caffeine data for Dunkin Donuts beverages
  • Graphics update delays causing app unresponsiveness
  • Watch app loading issues on initial launch

Requested features

20 requests
  • Toggle option to disable bar chart visualization
  • Taller graph display area with scrolling capability
  • Personalization based on body weight and metabolism
  • Ounce-based measurement options for drinks
  • Multi-day and historical trend analysis
Show 15 more
  • Siri Shortcuts integration for automated logging
  • Today widget for quick access
  • Mood and energy level tracking
  • More granular unit adjustments (fractions of shots)
  • Expanded beverage library (Monster Java, Sheetz coffee, K-cups, etc.)
  • Custom coffee group creation without preset requirements
  • Apple Watch complications showing current caffeine levels
  • Watch app graph visualization
  • Headache threshold level tracking
  • Future-looking graph projections
  • Water consumption tracking integration
  • Ability to rename custom amounts before adding
  • Custom amounts appearing at top of list instead of bottom
  • Shift work schedule support
  • Average daily caffeine statistics

Foundry

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Caffeine App

One-time1
  • Unlock Pro$4.99
2 purchases

Foundry

Subscriptions2
  • Foundry Membership14 Days trial$24.991 Month
  • Foundry Annual Membership14 Days trial$199.991 Year

Questions

Is Caffeine App free?
Caffeine App is free to download, with in-app purchases available.
Is Foundry free?
Foundry is free to download, with in-app purchases available.
Do Caffeine App or Foundry have ads?
Neither Caffeine App nor Foundry shows ads.
Which is updated more often, Caffeine App or Foundry?
Caffeine App ships an update monthly, and Foundry fortnightly. Most recently, Caffeine App was updated on November 6, 2026 and Foundry on November 6, 2026.

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