Comparison

Interval Weight Loss vs Zing Wellbeing

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

Head to head
About

Interval Weight Loss

This scientifically developed program offers a structured approach to sustainable weight loss by resetting metabolism and building healthy habits. It provides flexible meal plans, educational resources, progress tracking tools, and optional access to a personal dietitian.

Highlights
  • Habit tracker for balanced eating, exercise, and sleep
  • Flexible and adaptable meal plans with new recipes
  • Educational videos and articles on weight loss science
  • Tools to track weight, blood changes, and measurements
  • 24/7 access to a personal dietitian (PLUS plan)
  • Stepped approach to weight loss without starvation mode
Features
Read full description

Interval Weight Loss is a scientifically developed health and weight loss program that's proven to deliver lasting results. It is currently ranked the number 1 program globally for sustainable weight loss. Developed and tested by Dr Nick Fuller from the University of Sydney, IWL takes a stepped approach to weight loss that's sustainable, resets your metabolism, and allows your body to return to a healthy weight without going into starvation mode. Unlike other programs, we’re not sexy, but we are proven - and we’re easy for everyone to follow. Download and start your weight loss journey today. FEATURES Transform yourself building healthy habits: Use our habit tracker to consistently build and maintain habits from IWL’s core principles. Integrate daily routines like balanced eating, regular exercise, and good sleep patterns for lasting health transformations. Flexible meal plans for your lifestyle: Gain access to an extensive collection of adaptable recipes that will help you enjoy a varied diet without feeling restricted. New recipes are regularly added to cater to diverse tastes and nutritional needs. Empower yourself with knowledge: Dive into videos and articles to understand the science behind IWL’s weight loss and wellness strategies, equipping you with the knowledge to make informed health decisions for lasting change. Tools to track your success: Monitor your journey and celebrate your milestones in weight loss, blood changes, waist measurements and more. See the tangible results of your long-term efforts. Your personal dietitian, just a message away: Benefit from 24/7 access to a personal IWL dietitian with the PLUS plan, offering customised dietary guidance to align your nutritional choices with your personal health goals, tailored to your unique journey with IWL. View terms here: Privacy policy: https://intervalweightloss.com/privacy-policy Terms of use: https://intervalweightloss.com/terms-and-conditions Billing Terms: https://intervalweightloss.com/billing-terms

About

Zing Wellbeing

This app offers a holistic approach to women's health and wellness, aiming to improve energy, digestion, mental well-being, and physical fitness. It provides recipes, meal plans, fitness videos, and mental wellness programs, supported by expert coaching.

Highlights
  • 750+ recipes
  • 20+ specialized meal plans
  • On-demand fitness videos
  • Mental wellness programs
  • Expert group coaching
  • Women-only support group
Features
Read full description

Join over 20,000 women to transform your health and wellness. Zing Wellbeing takes a holistic approach to women's health and wellness. Through our program, you can expect to feel healthier, with more energy, better digestion, improved mental wellness, better skin hair and nails, lose weight and be fitter and stronger - both physically and mentally. Features Include: * Over 750+ delicious recipes * 20+ meal plans catering to gut health, high protein, anti inflammatory, hormone balancing, anti bloating and menopause. * On demand fitness videos and mental wellbeing programs including better sleep, reducing stress and behaviour change. * Plus get expert group coaching in our women only support group.

Screenshots

Interval Weight Loss4 screens
Zing Wellbeing4 screens

Verdict

The call

The clearest difference is review sentiment: Zing Wellbeing at 100% against Interval Weight Loss's 60%. Zing Wellbeing also leads on in-app purchases (none vs 11). Interval Weight Loss's advantage is iOS requirement (15.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Interval Weight Loss sells 11 in-app purchases, starting at $14.00 per month. Zing Wellbeing asks for nothing beyond the download.

UpkeepUpdate frequency

Interval Weight Loss ships an update fortnightly, Zing Wellbeing monthly. The most recent releases landed on September 21, 2026 and July 31, 2026 respectively.

Scorecard4 real differences Β· 4 level
Interval Weight Loss versus Zing Wellbeing: the parameters behind the verdict, then further details
ParameterInterval Weight LossZing Wellbeing
PriceFreeFree
Positive reviews60.0% of reviews100.0% of reviews β€” better
Update frequencyFortnightly β€” betterMonthly
AdsNoNo
In-app purchasesYesNo β€” better
MonetizationSubscriptionFree β€” better
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.0 β€” better18.6
Further details β€” not scored
Size119 MB20 MB
Age rating4+4+
DeveloperInterval Weight LossZing Wellbeing PTY LTD

Customer experience

Interval Weight Loss

Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Zing Wellbeing

Written reviews77 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

11 purchases

Interval Weight Loss

Subscriptions11
  • IWL Plan Monthly$14.001 Month
  • IWL Plus Monthly$29.001 Month
  • IWL Essential$40.001 Month
Show 8 more
  • IWL Plan Quarterly$59.003 Months
  • IWL Plan Quarterly (Trial)1 Month trial$59.003 Months
  • IWL Plus Quarterly$129.993 Months
  • IWL Plus Quarterly (Trial)1 Month trial$129.993 Months
  • IWL Plan Yearly$179.001 Year
  • IWL Plan Yearly (Trial)1 Month trial$179.001 Year
  • IWL Plus Yearly$399.001 Year
  • IWL Plus Yearly (Trial)1 Month trial$399.001 Year
None

Zing Wellbeing

No in-app purchases

Questions

Is Interval Weight Loss free?
Interval Weight Loss is free to download, with in-app purchases available.
Is Zing Wellbeing free?
Zing Wellbeing is free to download, with no in-app purchases.
Do Interval Weight Loss or Zing Wellbeing have ads?
Neither Interval Weight Loss nor Zing Wellbeing shows ads.
Which is updated more often, Interval Weight Loss or Zing Wellbeing?
Interval Weight Loss ships an update fortnightly, and Zing Wellbeing monthly. Most recently, Interval Weight Loss was updated on September 21, 2026 and Zing Wellbeing on July 31, 2026.

Other comparisons