Comparison

Stress Level Tracker for Watch vs PortionCheck

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

Head to head
About

Stress Level Tracker for Watch

Features
Read full description

The Stress Level app shows how your body responds to everyday life. It measures on your Apple Watch and keeps your history on your iPhone. The app combines heart rate and heart rate variability (HRV) to estimate your stress on a 0–100 scale, color-coded from low to high. It accounts for movement, workouts, and sleep, so physical activity isn't mistaken for stress. Key features: • Tracks stress all day in the background on your Watch, even without your iPhone nearby • Reads data securely from Apple Health, and your health data stays on your devices • 0–100 stress scale with clear colors: low, medium, high • On-demand check: one tap on your wrist for a fresh reading • Charts for today and yesterday on your Watch • A week of stress history on your iPhone, with daily averages Whether you're curious about stress or just like learning more about your body, the Stress Level app makes it simple. Disclaimer: The Stress Level app is not a medical device. Results are estimates intended for wellness and self-awareness only. The app performs best when used with a single Apple Watch worn consistently throughout the day.

About

PortionCheck

This app uses AI to quickly track your calorie and macronutrient intake by analyzing food photos, voice input, or barcode scans. It offers personalized targets, progress tracking, and weekly AI-powered insights, all while prioritizing user privacy.

Highlights
  • AI food photo analysis
  • Voice and text meal logging
  • Barcode and nutrition label scanning
  • Macro rings visualization
  • Personalized calorie and macro targets
  • Progress tracking and streaks
  • Weekly AI coaching reports
Features
Read full description

Know your calories, protein, carbs and fat in seconds. Snap a photo of your plate, say what you ate, or scan a barcode. PortionCheck turns it into a full macro breakdown you can edit with one slide. No account. No ads. LOG A MEAL IN SECONDS • Photo: point the camera at your plate. Several dishes? Add another photo to the same meal. • Voice or text: "two eggs, toast with butter, black coffee." Done. • Barcode: scan any grocery product. Not in the database? Scan the nutrition label and it is saved for next time. • Search your foods, reuse meal templates, or enter values by hand. Always unlimited, no AI needed. • Countable portions: 2 eggs, 3 rotis, 1 banana. The grams are worked out for you. • Every estimate is editable. Slide a portion and every macro updates live. THREE MACRO RINGS Protein, carbs and fat as three rings with calories left in the center. See at a glance what is left today. Separate targets for training days and rest days, switched automatically from your workouts in Apple Health if you like. TARGETS BACKED BY RESEARCH Pick muscle gain, fat loss or body recomposition. PortionCheck calculates your calories and macros with published equations, cites every source in the app, and never goes below safe minimums. Prefer your own numbers? Set them yourself. A WEEKLY AI COACH Every Monday, a short report on your week: what worked, one pattern to watch, one thing to try next. Written from your own data. STAY ON TRACK • Streaks with a monthly streak shield, so one missed day does not erase your progress. • Weight trend, protein and calorie adherence charts, and private progress photos. • Water tracking with a one-tap widget. • Gentle reminders you control. BUILT FOR iPHONE DUO Fully open, Summary, Progress and Profile split into two panes, one on each side of the fold. Closed, everything fits the outer screen. The camera controls stay clear of the hinge. BUILT ON APPLE INTELLIGENCE Photo and voice logging run on Apple's Foundation Models, using Private Cloud Compute with on-device fallback. Your photos and descriptions are processed by Apple's models and are never stored or used for training. EVERYWHERE ON YOUR iPHONE • Siri: "Log a meal in PortionCheck" or "How much protein do I have left?" • Home Screen and Lock Screen widgets, plus a Control Center button that opens the camera. • Apple Health: meals, water and weight are written to Health; weight, height and workouts can be read from it. • Syncs across your devices through your private iCloud. FREE AND PRO Free includes 3 AI meal logs per day, plus unlimited barcode, search, template and manual logging, all progress tools, widgets, Siri and Apple Health. Your first weekly report is free. PortionCheck Pro removes the daily AI limit and unlocks the weekly AI coach. Monthly, yearly, or a one-time lifetime purchase. PRIVATE BY DESIGN No sign-up, no email, no third-party analytics, no ads. Meal photos stay on your device. Your food log syncs only through your own iCloud. Privacy Policy: https://apps.whitedigit.com/portion-check/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Photo and voice logging need an iPhone with Apple Intelligence (iPhone 15 Pro or later). Barcode, search, template and manual logging work on every supported iPhone. PortionCheck provides nutrition estimates for informational purposes only and is not medical advice.

Screenshots

Stress Level Tracker for Watch4 screens
PortionCheck4 screens

Verdict

The call

The clearest difference is update cadence: Stress Level Tracker for Watch at every 5 days against PortionCheck's every 2 weeks. 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. Stress Level Tracker for Watch sells 3 one-off in-app purchases and PortionCheck sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Stress Level Tracker for Watch ships an update every 5 days, PortionCheck every 2 weeks. Both last shipped on October 25, 2026.

Scorecard1 real difference · 8 level
Stress Level Tracker for Watch versus PortionCheck: the parameters behind the verdict, then further details
ParameterStress Level Tracker for WatchPortionCheck
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS26.0 — better27.0
Further details — not scored
Size16 MB16 MB
Age rating4+4+
DeveloperBlazej BiesiadaWHITE DIGIT LLC

In-app purchases

3 purchases

Stress Level Tracker for Watch

One-time3
  • Small Tip$1.99
  • Medium Tip$5.99
  • Large Tip$14.99
3 purchases

PortionCheck

Subscriptions2
  • PortionCheck Pro7 Days trial$6.991 Month
  • PortionCheck Pro (Annual)7 Days trial$39.991 Year
One-time1
  • Pro Lifetime$89.99

Questions

Is Stress Level Tracker for Watch free?
Stress Level Tracker for Watch is free to download, with in-app purchases available.
Is PortionCheck free?
PortionCheck is free to download, with in-app purchases available.
Do Stress Level Tracker for Watch or PortionCheck have ads?
Neither Stress Level Tracker for Watch nor PortionCheck shows ads.
Which is updated more often, Stress Level Tracker for Watch or PortionCheck?
Stress Level Tracker for Watch ships an update every 5 days, and PortionCheck every 2 weeks. Most recently, Stress Level Tracker for Watch was updated on October 25, 2026 and PortionCheck on October 25, 2026.

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