Spark DietTracker vs HardCORE Fit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spark DietTracker
Easily track your diet, including Keto, Paleo, and Low-Carb plans. This app automatically reads ketone and pH test strips, providing immediate and accurate results. Monitor your weight, mood, and macronutrients with weekly summaries and recipe recommendations.
- Automatic ketone and pH test strip reading
- Diet tracking (Keto, Paleo, Low-Carb)
- Weight and mood tracking
- Macronutrient monitoring (calories, net carbs, protein)
- Recipe and supplement recommendations
- Weekly diet summaries
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Spark DietTracker app provides a new and simple way to keep track of your diet (Keto, Paleo, Low-Carb, Atkins or Alkaline). The app integrates automatic test strips reading of the Spark Diagnostics’s Ketone Test Strips (Ux-1k) and Ketone/pH Test Strips (Ux-2ka) products. It seamlessly integrates the Spark Diagnostics test products to measure ketones or pH of Urine to record and track the effectiveness of the diet. The urine ketone test strip reader included in app automatically reads the test strip from the image of the test strips and delivers hassle-free, immediate, and accurate results in your phone screen without having to interpret the complex visual color chart. Note: App requires the use of Spark Diagnostics products. Further, also track your weekly summary of the key diet parameters for you such as calories, net carbs, and protein for users to keep informed and adjust your diet plan accordingly. You can record and track your weight and mood too! APP FEATURES: FAST, FREE, AND CONVENIENT FREE SMARTPHONE MOBILE APP READING of KETONE TEST STRIPS for Ketosis – automatically reads the test strip and delivers hassle-free, immediate, and accurate results in your phone screen without having to interpret a complex visual color chart. RECORD/TRACK YOUR DIET GOALS AND MONITOR YOUR MACROs - The App keep tracks all the key parameters including your Urine Ketone, Urine pH, weight, calories, and even your mood! It shows daily trends that help to improve consistency in maintaining your Diet goals and weight. I RECOMMENDATION ON RECIPES and SUPPLEMENTS: get a recommendation on Recipes and Supplements that can help to stay on track with your diet. Note: Instructions on the product package take precedence over the recommendations made by the app. In the event of unexpected or questionable results by App follow instructions from product package inserts.
HardCORE Fit
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Hard 'CORE' Fitness, by Lisa Hansen, is not your ordinary fitness program. Our workouts focus on CORE strength and FUNCTION - the "powerhouse" of our body. Learn how to engage your muscles effectively, how to move in a way that suits YOUR mobility, fitness level and physical limitations (such as pelvic floor dysfunction or back/hip pain, sore knees or sore wrists!).... so that you not only avoid injuries but feel maximum benefits from your workouts. The Ultimate CORE FOCUSED TRAINING to Change Your Life! Choose from a variety of training - from pilates/stretching to bootcamp, pregnancy fitness, postpartum core recovery and total beginner programs. From pregnancy through to your postpartum recovery and beyond. SAFE and EFFECTIVE training that is suitable for the common issues faced by mums - pelvic floor dysfunction, ab separation, back/hip pain, sore wrists and knees. PREGNANCY Workouts: * Suitable for ALL trimesters and all fitness levels. * Entirely low impact. * The perfect mix of pelvic floor work, pelvic stability work (hips) and chest opening/back strengthening work. * Suitable for pelvic floor dysfunction and diastasis recti. POSTPARTUM CORE RECOVERY Workouts: * Suitable for ALL stages of postpartum recovery (no matter how old your kids are!). * In depth pelvic floor work, lower abs and butt muscles. * Suitable for Pelvic floor dysfunction and diastasis recti (ab separation). * Strengthen hips and knees and reduce/alleviate back/hip pain. POSTPARTUM FITNESS and MENOPAUSE Workouts: * Suitable for ALL fitness levels. * PILATES/STRETCH and Full Body Fitness Workouts. * Entirely low impact (NO jumping/running/bouncing). * The perfect mix of pelvic floor work, hip/knee/ankle stability work and chest opening/back strengthening work. * Suitable for pelvic floor dysfunction, core weakness and hip/back pain. TOTAL BEGINNER Workouts: * Starting with just 5 minute workouts and slowly building up to 20 minute workouts by week 5! * Suitable for ALL fitness levels, including total beginners. This is a great way to ease back in to workouts after an injury/illness, after a baby, or the perfect place to START if you haven't exercised in years (or ever!!!). * A focus on technique so you can workout safely, prevent injuries and get maximum results. ALL LOW IMPACT (no jumping). * Learn how to ACTIVATE your core effectively - including butt muscles and lower abs. PLUS much more including CHALLENGES, MINDSET COURSES and INTENSE SHORT Workouts! Regain your spark and lust for fitness! No more exacerbating or causing ISSUES or INJURIES! Create a STRONG, FUNCTIONING CORE and feel your best yet! INFORMATION ABOUT THE APP AND PURCHASE OPTIONS By signing up, you will get access to subscription(s) that include features such as progress tracking, and offline sync. The download of HardCORE Fit is free of charge. Should you use HardCORE Fit to access in-app content via available subscription(s), a payment will be charged to your credit card after the trial period ends and when a subscription renews. A subscription renews automatically unless canceled at least 24 hours prior to the end of the subscription period. There is no increase in price when renewing. Subscription(s) can be managed and auto-renewal turned off in Account Settings in the App Store after purchase. Read our full Terms of Service and our Privacy Policy: https://passion.io/terms-of-service https://passion.io/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: Spark DietTracker at none against HardCORE Fit's 8. Spark DietTracker also leads on ads (none vs shown). On price, update cadence, device support 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
Both are free to download. HardCORE Fit sells 7 in-app purchases, starting at $3.95 per month. Spark DietTracker asks for nothing beyond the download.
Spark DietTracker ships an update monthly, HardCORE Fit every 4 weeks. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.
| Parameter | Spark DietTracker | HardCORE Fit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 16.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly | Every 4 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 52 MB | 65 MB |
| Age rating | 12+ | 4+ |
| Developer | SPARK DIAGNOSTICS, LLC | Lisa Hansen |
In-app purchases
Spark DietTracker
No in-app purchases
HardCORE Fit
- Monthly Subscription$3.951 Month
- Monthly Subscription2 variants$5.951 Month
- Monthly Subscription7 Days trial$12.951 Month
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- Beginners Workouts!$20.001 Month
- 7 min Workouts7 Days trial$20.001 Month
- Core Recovery$25.001 Month
- Pregnancy Fitness$30.001 Month
Questions
Is Spark DietTracker free?
Is HardCORE Fit free?
Do Spark DietTracker or HardCORE Fit have ads?
Which is updated more often, Spark DietTracker or HardCORE Fit?
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