Comparison

dialysisPal vs C

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

Head to head
About

dialysisPal

This app helps peritoneal dialysis patients quickly log daily treatment data, including fluid amounts, weight, and blood pressure. It visualizes trends over time with charts and allows data export for medical appointments. HealthKit and iCloud sync are supported.

Highlights
  • Log daily treatment data
  • Visualize trends with charts
  • Export PDF/CSV reports
  • HealthKit integration
  • iCloud sync
  • Offline functionality
  • Accessibility features
Features
Read full description

dialysisPal. Open. Enter. Leave. I built this app because I got tired of waiting for my own data. I've been on peritoneal dialysis since 2016. Like most PD patients, I started tracking my treatment with pen and paper. Then a spreadsheet copied from my nephrologist's template. Then Airtable. It worked fine, except that opening it, entering my numbers, and waiting for the sync took one or two minutes every single time. That doesn't sound like much. But when you do it twice a day, every day, those minutes add up. Eventually I thought: I can build something faster. So I did. I've been using dialysisPal myself for almost a year now. It does exactly what I need, and nothing else. What dialysisPal tracks: Set up your profile once (your dialysate type and cycler configuration), then log your daily treatment in seconds: • Morning: ultrafiltration amount from your overnight treatment, dwell time, weight, blood pressure, pulse • During the day (optional): interim drainage if you do a midday drain • Evening: the rest of the day's drainage, plus your evening weight, blood pressure, and pulse That's all of it. No features you won't use, no menus to navigate. Open the app, tap in your numbers, you're done. Why tracking matters: Day to day, you feel fine. Your blood pressure looks normal this morning. Your weight hasn't changed much since yesterday. Everything seems okay. The tricky thing about peritoneal dialysis is that the problems that matter creep up slowly. Fluid builds up gram by gram. Blood pressure rises point by point. Any single reading tells you almost nothing. The trend tells you everything. dialysisPal makes that trend visible. Charts show you what's actually happening over time, not just what today felt like. What else it does: • Trend charts — ultrafiltration, weight, blood pressure, and drainage patterns over time • Export — generate PDF or CSV reports for your nephrologist appointments • HealthKit integration — your weight and blood pressure sync with Apple Health • iCloud sync — your data stays backed up privately across your iOS devices Sanity checks — catches obvious entry mistakes (like typing 700 kg instead of 70 kg) • Offline — works without internet • Accessible — full VoiceOver support, Dynamic Type, WCAG AA compliance A few honest things: This is version 1. I use it myself every night, and it does what it needs to. The app is a one-time purchase. No subscription, no ads, no analytics, no account needed. Your data stays on your phone. I'm not a medical device company. Not a startup with a growth team. I'm someone who does PD every night and wanted a tracker that didn't waste my time. Now I'm sharing it with you. Built by a patient. For patients. Questions? support@dialysepal.de

About

C

This app verifies gym check-ins with GPS to track real progress and build streaks. It allows users to log workouts, compete on leaderboards, and connect with friends and local gym communities. Premium features offer advanced analytics and customization.

Highlights
  • GPS-verified gym check-ins
  • Workout logging (exercises, sets, reps, weight)
  • Streaks and XP for gym attendance
  • Monthly gym leaderboards
  • Social features: follow friends, group challenges
  • Muscle group identification
  • Rest timer with Lock Screen Live Activities
Features
Read full description

Most fitness apps take your word for it. C-Rex does not. C-Rex is a GPS-verified gym and workout tracker that turns showing up into real progress. Every check-in is tied to the gym you are actually visiting. Build streaks, earn XP, compete on monthly gym leaderboards and train with people around you. SHOW UP AND MAKE IT COUNT Check in when you arrive at the gym. C-Rex uses GPS to verify that you are actually there. Build a streak based on real gym sessions, not good intentions. Earn XP and climb your gym’s monthly leaderboard. Join challenges and earn rewards when you complete them. TRAIN WITH YOUR PEOPLE Follow friends and see who is training right now. View your friends’ workout activity in one feed. Create or join groups with your training partners. Take on group challenges together. Message the people you train with without leaving the app. LOG EVERY WORKOUT Track exercises, sets, reps, weight, duration and cardio. Choose from a database of 500+ exercises. See a weekly muscle map showing what you have trained. Identify the muscle groups you keep neglecting. Select the muscles you want to work and build a session around them. Use the rest timer while you train. Keep your timer visible on your Lock Screen with Live Activities. FIND YOUR GYM COMMUNITY Discover gyms near you on the map. See who is training at nearby gyms. Find gym buddies who match your training lifestyle. Share workouts, progress and achievements with the community. C-REX PREMIUM Upgrade to Premium for: Progress charts over time Private progress comparisons with friends The ability to see who viewed your profile Custom name colours and emojis GIFs in group chats Streak Shield protection C-Rex’s core features — including gym check-ins, workout logging, streaks, XP, social features, challenges and chat — are available for free. Premium is available as a monthly or yearly subscription. Subscriptions automatically renew unless cancelled at least 24 hours before the current billing period ends. Payment is charged to your Apple Account upon confirmation of purchase. You can manage or cancel your subscription through your Apple Account settings after purchase. Privacy Policy: https://gym-app-ce4a9.web.app/privacy Terms of Service: https://gym-app-ce4a9.web.app/terms

Screenshots

dialysisPal4 screens
C4 screens

Verdict

The call

The clearest difference is price: C at Free against dialysisPal's $5.09. C also leads on ratings volume (5 vs 1) and iOS requirement (16.0 vs 26.0). dialysisPal's advantage is in-app purchases (none vs 2). On rating, update cadence, ads and device support 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

C is free to download; dialysisPal costs $5.09 up front. C sells 2 in-app purchases, starting at $4.99 per month. dialysisPal asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for dialysisPal against 5.0 for C. That said, the two scores are not equally well evidenced: C has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

dialysisPal ships an update weekly, C every 5 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
dialysisPal versus C: the parameters behind the verdict, then further details
ParameterdialysisPalC
Price$5.09Free — better
Rating5.0 (1 ratings)5.0 (5 ratings)
Positive reviews—100.0% of reviews
Number of ratings15 — better
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhoneiPhone
Requires iOS26.016.0 — better
Further details — not scored
Size21 MB125 MB
Age rating17+12+
DeveloperAlexander KuceraJerry Kwong

Customer experience

dialysisPal

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

C

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

dialysisPal

No in-app purchases

2 purchases

C

Subscriptions2
  • C-Rex Monthly Subscription$4.991 Month
  • C-Rex Yearly Subscription$49.991 Year

Questions

Is dialysisPal free?
dialysisPal costs $5.09, with no in-app purchases.
Is C free?
C is free to download, with in-app purchases available.
Which has better reviews, dialysisPal or C?
dialysisPal and C are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.
Do dialysisPal or C have ads?
Neither dialysisPal nor C shows ads.
Which is updated more often, dialysisPal or C?
dialysisPal ships an update weekly, and C every 5 days. Most recently, dialysisPal was updated on October 30, 2026 and C on November 5, 2026.

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