KidneyOS vs FORM Training
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
KidneyOS
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Managing kidney disease takes a team. KidneyOS is built for CKD and dialysis patients β and the family members who help them β to track nutrition, fluid, medications, and labs together in one private, iCloud-based dashboard. KIDNEY SCORE Every day receives a 0β100 Kidney Score based on how your sodium, potassium, and phosphorus intake compares to your personal targets. It's a fast, at-a-glance summary of how your day is going β not a diagnosis, but a motivating educational signal. CAREGIVER SHARING (Plus) Invite a family member or caregiver via iCloud. They can co-log meals, fluid, and medications from their own device in real time β no shared password required. SMART FOOD SEARCH & BARCODE SCANNER Search pulls from USDA FoodData Central (lab-verified nutrients) and Open Food Facts (packaged foods). KidneyOS automatically routes whole-food searches to USDA and branded-product searches to the best available source. Scan any barcode to instantly fill in potassium and phosphorus values that aren't always on the label. FLUID TRACKER Kidney disease often requires a strict daily fluid limit. Log every glass, cup, or IV with quick-add buttons or custom amounts. An animated ring shows exactly how much fluid you have left today. LAB-DRIVEN TARGET SUGGESTIONS Enter your most recent potassium, phosphorus, sodium, albumin, and dialysis context. KidneyOS analyzes trends and suggests whether to tighten or relax your daily nutrient targets β then shows its work so you can review it with your care team. MEDICATION REMINDERS Add phosphate binders, blood pressure medications, or any other daily meds. KidneyOS schedules local notification reminders at the exact times you choose. WEEKLY INSIGHTS & TRENDS (Plus) Seven-day nutrient trend charts with auto-generated observations help you and your dietitian spot patterns before your next appointment. DOCTOR EXPORT (Plus) Generate a PDF summary of your food log, fluid intake, labs, and medications to share with your nephrologist or renal dietitian. FOOD LIBRARY & RECIPES Save custom foods and build kidney-friendly recipes. Every recipe automatically calculates sodium, potassium, phosphorus, and calories per serving. SAVED MEALS Create meal templates for dishes you eat regularly. Log an entire meal in one tap. ICLOUD SYNC Your data stays private and syncs automatically across all your iPhone and iPad devices through your personal iCloud account. IMPORTANT MEDICAL DISCLAIMER KidneyOS is intended for informational wellness and nutrition awareness purposes only and is not a medical device. The app does not diagnose, treat, prevent, monitor, or manage any disease or medical condition. Always seek a doctorβs advice in addition to using this app and before making any medical decisions. KidneyOS is an educational self-tracking tool. Always confirm diet changes, fluid limits, target adjustments, and medication decisions with your nephrologist, renal dietitian, or licensed care team. KidneyOS Plus is available as a monthly subscription, annual subscription (best value), or one-time lifetime purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
FORM Training
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FORM is a clean, powerful workout tracker built for people who actually go to the gym. Log every exercise, set, rep, and weight in seconds. See your previous session's numbers right next to your current set so you always know what you need to beat. Hit a personal record and FORM catches it automatically. Whether you follow a structured program or build your own sessions from scratch, FORM adapts to how you train. The exercise library is fully gender-specific β men and women each see exercises and images tailored to them. What's inside (subscription required): Fast, minimal workout logging built for mid-session use Previous session data shown as a reference target for every set Automatic PR detection and celebration Progress charts for your key lifts over time Effort tracking from 1 to 10 so you know how hard you actually pushed Coached mode or self-programmed β your choice, changeable anytime Recovery log that feeds into your dashboard Full progress history synced to your account No fluff. No social feed. Just your training, tracked properly. SUBSCRIPTION REQUIRED Access to FORM's features requires an auto-renewing subscription: $4.99/week, $9.99/month, or $29.99/year (the annual plan includes a 3-day free trial). Prices are in USD and may vary by region. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://formprivacypolicy.carrd.co/
Screenshots
Verdict
The clearest difference is update cadence: KidneyOS at every 2 days against FORM Training's weekly. On price, ads, in-app purchases 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
Both are free to download. KidneyOS sells 3 in-app purchases, starting at $2.99 per month and FORM Training sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
KidneyOS ships an update every 2 days, FORM Training weekly. Both last shipped on September 21, 2026.
| Parameter | KidneyOS | FORM Training |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days β better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 β better | 18.0 |
| Further details β not scored | ||
| Size | 8 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | Btown Labs, LLC | Everett Thomas |
In-app purchases
KidneyOS
- KidneyOS Plus Monthly$2.991 Month
- KidneyOS Plus Annual$19.991 Year
- KidneyOS Plus Lifetime$49.99
FORM Training
- Weekly$4.997 Days
- Monthly$9.991 Month
- Annual3 Days trial$29.991 Year









