Comparison

StackWise vs Contraction Timer

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

Head to head
About

StackWise

Features
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Taking supplements, but not sure if you're doing it right? AI Supplement Planner takes the guesswork out of your daily supplement routine. Tell us about your health goals, lifestyle, and diet โ€” our AI builds a personalized supplement plan tailored specifically to you. No more Googling dosages or wondering what to take with food. Everything is organized, timed, and tracked in one place. HOW IT WORKS 1. Complete a quick health profile โ€” your goals, diet, lifestyle, and any medications 2. Our AI analyzes your inputs and generates a personalized supplement plan 3. Follow your daily checklist, get reminders, and track your progress over time KEY FEATURES - Personalized Plans โ€” AI creates a supplement routine based on your unique health profile, goals, and preferences - Interaction Checker โ€” Automatically flags potential interactions between supplements and any medications you take, so you can make informed decisions - Daily Tracking โ€” Simple checklist to log your supplements each day. Build streaks and stay consistent - Smart Reminders โ€” Get notified when it's time to take your morning, afternoon, or evening supplements - AI Chat Assistant โ€” Have questions about timing, dosage, or a specific supplement? Ask the built-in AI chat anytime - Progress History โ€” View your tracking history day by day. See your streaks and consistency over time - Meal-Aware Scheduling โ€” Your plan accounts for whether supplements should be taken with food, on an empty stomach, or at specific times - Clean, Simple Design โ€” No clutter, no ads. Just a focused tool to help you stay on top of your supplement routine WHO THIS APP IS FOR - People who take multiple supplements and want an organized routine - Anyone starting a new supplement regimen and unsure where to begin - Health-conscious adults looking to optimize their daily nutrition - People who want to check for potential supplement-medication interactions SUBSCRIPTION OPTIONS AI Supplement Planner offers a free tier with limited features. For the full experience, choose a subscription: - Monthly: $4.99/month - Annual: $29.99/year (save 50%) Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account at confirmation of purchase. You can manage or cancel your subscription in your Apple ID account settings. IMPORTANT DISCLAIMER AI Supplement Planner is a wellness tool designed for informational purposes only. It does not provide medical advice, diagnoses, or treatment recommendations. The AI-generated plans and suggestions are not a substitute for professional medical advice from a qualified healthcare provider. Always consult your doctor or pharmacist before starting, stopping, or changing any supplement or medication regimen. Individual results may vary. Privacy Policy: https://supplementplanner.app/privacy Terms of Service: https://supplementplanner.app/terms

About

Contraction Timer

Features
Read full description

Contraction Timer: Popzy is the simplest way to time your contractions when labor starts. One tap when a contraction begins, one tap when it ends. Popzy tracks the length and the time between each one, shows you the pattern as it builds, so you know when to call your midwife or hospital. No ads, no sign-up, no waiting. Contraction Timer: Popzy works offline, so it keeps timing in the car, in the elevator and in the delivery room. Nothing gets between you and the button. How it works 1. Tap when a contraction starts, tap again when it ends 2. Popzy records the duration and the interval automatically 3. Watch the pattern build and follow the 5-1-1 guide Know when it is time Contraction Timer: Popzy follows the 5-1-1 rule most midwives and doctors use: contractions about five minutes apart, lasting about one minute, for one hour. When your timing matches the rule, Popzy shows it clearly, so you can call your care provider. You can adjust the rule to whatever your own midwife or doula recommends. Made for the moment Big buttons you can find without looking Rate the intensity of each contraction with one tap A live timer showing time since the last contraction Edit or delete an entry if you missed a tap Your full labor history saved to share with your care team See your full contraction pattern at a glance Save the story Every contraction is saved. When your baby arrives, keep the timeline of your labor as part of your pregnancy keepsake and share it with family. Contraction Timer: Popzy is not a medical device and does not replace the advice of your midwife, doctor or hospital. Always contact your care provider if you are unsure, if your waters break, if you notice bleeding or reduced movements, or if anything feels wrong. Contraction Timer: Popzy requires a subscription to access all features. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://klikklakstudio.com/privacy-policy/

Screenshots

StackWise4 screens
Contraction Timer4 screens

Verdict

The call

The clearest difference is update cadence: Contraction Timer at every 3 weeks against StackWise's every 2 months. StackWise's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. StackWise sells 2 in-app purchases, starting at $4.99 per month and Contraction Timer sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

StackWise ships an update every 2 months, Contraction Timer every 3 weeks. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

Scorecard2 real differences ยท 4 level
StackWise versus Contraction Timer: the parameters behind the verdict, then further details
ParameterStackWiseContraction Timer
PriceFreeFree
Update frequencyEvery 2 monthsEvery 3 weeks โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 โ€” better15.1
Further details โ€” not scored
Size36 MB48 MB
Age rating17+4+
DeveloperAliaksandr LiubchankaUtku Gogen

In-app purchases

2 purchases

StackWise

Subscriptions2
  • Premium (Monthly)$4.991 Month
  • Premium (Annual)$29.991 Year
2 purchases

Contraction Timer

Subscriptions1
  • Contraction Timer Weekly$4.997 Days
One-time1
  • Contraction Timer Lifetime$14.99

Questions

Is StackWise free?
StackWise is free to download, with in-app purchases available.
Is Contraction Timer free?
Contraction Timer is free to download, with in-app purchases available.
Do StackWise or Contraction Timer have ads?
Neither StackWise nor Contraction Timer shows ads.
Which is updated more often, StackWise or Contraction Timer?
StackWise ships an update every 2 months, and Contraction Timer every 3 weeks. Most recently, StackWise was updated on October 14, 2026 and Contraction Timer on October 25, 2026.

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