Comparison

WeightWatchers Program vs Healstack

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

Head to head
About

WeightWatchers Program

This app offers a science-backed weight loss tracker and personalized diet plans. It includes specialized support for weight-loss medications, AI-powered progress tracking beyond the scale, and flexible tools for various weight management goals. Connect with coaches and a supportive community for lasting results.

Highlights
  • Personalized diet plans
  • Weight-loss medication support
  • AI body scanner
  • Weight Health Score
  • Points® Program
  • Macro tracking
  • Virtual coaching sessions
Features
Read full description

The #1 Doctor-Recommended Weight Loss Program† Get a science-backed weight loss tracker and diet plan tailored to your body. Whether you want to lose weight, maintain, or manage weight loss medication, Weight Watchers provides the tools for lasting results. NEW: GLP-1 & Clinical Support GLP-1 Success Program: Specialized nutrition, dose tracking, and side-effect management for members on weight-loss medications. Weight Watchers Med+: Access clinical experts and weight-loss medication prescriptions (if eligible). AI-Powered Progress Tracking AI Body Scanner: See 3D progress beyond the scale, including muscle and body fat changes. Weight Health Score: Get a holistic view of how your sleep, activity, and nutrition impact your health. Flexible Weight Loss Tools Customized Modes: Choose your path—Lose, Maintain, go All-In, or take a break from tracking with new Vacation Mode. Menopause Support: Manage symptoms and weight changes with tailored guidance. Points® Program: Our famous calorie counter alternative—track foods easily with ZeroPoint® foods and a barcode scanner. Macro Tracking: Monitor protein, fiber, carbs, and calories in one place. Integration & Coaching App and Device Syncs: Connect Apple Health™, Fitbit®, and more to track activity and sleep automatically. Virtual Experiences: Join live sessions led by expert Weight Loss Coaches. Registered Dietitians: Get 1:1 meal planning and nutrition support.* Food & Recipes Log Meals Instantly: Snap a photo or search our database of 12,000+ recipes and 450+ restaurants. Community: Join an exclusive social network of members for daily motivation. MEMBERSHIP TERMS Privacy Policy: https://www.weightwatchers.com/us/privacy/policy Terms of Service: https://www.weightwatchers.com/us/termsandconditions/membership †Based on a 2023 survey by Cerner Enviza of 500 doctors who recommend weight-loss programs to patients. *For as low as $0 for WeightWatchers members with qualified insurance coverage. Copays, coinsurance & deductibles may apply. Apple, the Apple logo, and iPhone are trademarks of Apple Inc., registered in the U.S. and other countries and regions.

About

Healstack

Features
Read full description

Healstack is a personal substance tracker, harm reduction wiki, and health dashboard. Log doses with a journal you can filter and search, browse a 200+ substance wiki with harm reduction data, and see your health trends in one dashboard. Your data stays in your account — no ads, no data sales. FEATURES - Dose logging with journal, filters, and search - 200+ substance wiki with harm reduction information - Health dashboard with trends over time - Private by design Healstack is built for harm reduction: honest information and personal tracking to help you make safer choices.

Screenshots

WeightWatchers Program4 screens
Healstack4 screens

Verdict

The call

The clearest difference is in-app purchases: Healstack at none against WeightWatchers Program's 10. Healstack also leads on ads (none vs shown). WeightWatchers Program's advantage is chart position (#24 vs unranked) and device support (3 vs 1). On price, update cadence and iOS requirement 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. WeightWatchers Program sells 7 in-app purchases, starting at $19.99 per month. Healstack asks for nothing beyond the download.

UpkeepUpdate frequency

WeightWatchers Program ships an update every 2 weeks, Healstack every 3 weeks. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

Scorecard4 real differences · 7 level
WeightWatchers Program versus Healstack: the parameters behind the verdict, then further details
ParameterWeightWatchers ProgramHealstack
PriceFreeFree
Rating4.8 (2.4M ratings) — better—
Positive reviews95.4% of reviews—
Number of ratings2.4M — better—
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#24 — better—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size561 MB5 MB
Age rating17+12+
DeveloperWW International, Inc.Joshua Trommel

Bugs and requests

WeightWatchers Program

Reported bugs

4 issues
  • Incorrect weight tracking
  • Disappearing activity/sleep data
  • Inability to add/edit recipes
  • Unreliable syncing with fitness trackers

Requested features

6 requests
  • Ability to edit/delete tracked foods
  • Improved food search and database
  • Ability to share/sync meals with others
  • Customizable meal planning and tracking
  • Detailed nutrition information (calories, macros)
Show 1 more
  • Sleep and water tracking integration

Healstack

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

WeightWatchers Program

Subscriptions7
  • Monthly Plan2 variants$19.991 Month
  • Monthly Plan$21.991 Month
  • Monthly Plan2 variants$23.991 Month
Show 4 more
  • Monthly Plan14 Days trial$23.991 Month
  • Monthly Plan2 variants$24.991 Month
  • Monthly Plan14 Days trial$24.991 Month
  • WW Digital 6-month14 Days trial$108.996 Months
None

Healstack

No in-app purchases

Questions

Is WeightWatchers Program free?
WeightWatchers Program is free to download, with in-app purchases available.
Is Healstack free?
Healstack is free to download, with no in-app purchases.
Do WeightWatchers Program or Healstack have ads?
WeightWatchers Program shows ads; Healstack does not.
Which is updated more often, WeightWatchers Program or Healstack?
WeightWatchers Program ships an update every 2 weeks, and Healstack every 3 weeks. Most recently, WeightWatchers Program was updated on October 14, 2026 and Healstack on October 5, 2026.

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