Comparison

Castra App vs HyperResponder

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

Head to head
About

Castra App

Features
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The platform where fitness coaches seamlessly manage clients and everyone can discover motivation for free FEATURES: - Log your workout with a simple and easy to use interface - Ready to use workouts to get you started, or get a personalized AI-generated plan the moment you sign up - Hundreds of exercises in our library or create your own - Create your own custom exercises for your workouts - Follow and copy your friends workout - Analyze your workout in details with charts and graphs - Analyze your body measure progress - Lead or join your dream team of athletes, or discover and join public communities and challenges - Manage your clients workouts and track their performance - Send and track check-ins and custom forms with your clients - Find your coach that will help you achieve your dream body, and book their sessions and services directly - Share your workouts and achievements as branded images to Instagram, Facebook and beyond - Chat with your coach or clients in real time ATHLETE: - Unlimited workouts per day - Unlimited custom exercises - Unlimited Graph History - Instantly connect with coaches - Book coaching sessions and services - Join challenges and earn rewards - Support our small team COACH: - Lead your own team of athletes - Manage and organize your clients workouts - Assign and review check-ins and custom forms - Publish bookable services and manage your schedule - Chat with your clients in real time - Support our small team Th Athlete and Coach subscriptions automatically renews if you do not cancel it at least 24 hours before the end of the current subscription period. Your account will be charged for the next subscription period up to 24 hours prior to the current subscription's expiration. You can manage your subscription and disable automatic renewal at any time by adjusting your Apple account settings. You have the right to withdraw from your initial subscription within 14 days of starting it. By purchasing, you accept our Tems & Conditions and Privacy Policy. Terms & Conditions https://castra.app/terms-and-conditions/ Privacy Policy https://castra.app/privacy-policy/ Own your journey!

About

HyperResponder

Features
Read full description

HyperResponder helps you log gym workouts faster, keep training organised, and track progress across sets, reps, weights, PRs, programs, and workout history. Built for lifters, HyperResponder gives you the speed of workout notes with the structure of a proper gym tracker. Type your workout naturally, including exercises, sets, reps, weights, and notes, and HyperResponder turns it into a clean training log you can review and build on. LOG WORKOUTS FASTER Stop rebuilding every exercise set by set during your session. Enter your workout in plain text, finish the session, and keep moving. Track: • Exercises • Sets • Reps • Weight • Workout duration • Training notes • Previous performance • Session feedback Whether you train for strength, hypertrophy, bodybuilding, general fitness, or consistency, HyperResponder gives you a faster way to log what matters. TURN NOTES INTO CLEAN TRAINING DATA HyperResponder organises plain-text workout notes into structured training data, without forcing you through a slow manual workflow. Write your workout the way you would in your notes app. HyperResponder structures it into exercises, sets, reps, weights, and session data, so your workouts are easier to review later. TRACK PROGRESS OVER TIME Track changes in strength, volume, frequency, and consistency across your workouts, exercises, and training blocks. Review: • Personal records • Estimated 1RM • Volume • Workout frequency • Exercise history • Strength trends • Consistency • Training stats From your latest bench press PR to your long-term workout volume, HyperResponder turns your training history into something you can actually use. KEEP EVERY WORKOUT ORGANISED Use calendar and history views to see what you trained, when you trained it, and how each session fits into your wider progress. Quickly review previous workouts, check completed sessions, search your history, and keep a clear record of your training over time. FOLLOW WORKOUT PROGRAMS Build and follow the programs you actually train. Create, save, import, and follow workout programs that match your split, goals, and training schedule. Use programs for: • Push Pull Legs • Upper Lower • Full-body training • Strength blocks • Hypertrophy routines • Custom workout plans STAY CONSISTENT Keep your training momentum visible with streaks, XP, badges, milestones, and rank progression. HyperResponder helps you see completed sessions, consistency, and progress as part of one training system. BUILT FOR REAL GYM LOGGING Use HyperResponder as your: • Gym workout log • Strength training tracker • Weightlifting tracker • Bodybuilding workout tracker • Workout planner • Exercise history tracker • Progress tracker • PR tracker HYPERRESPONDER PRO Upgrade to HyperResponder Pro for more natural-language workout logs each day, deeper progress tracking, longer-term stats, expanded workout history, more saved programs, advanced analytics, an ad-free experience, and other Pro features available in the app. See beyond recent sessions with 90-day and all-time progress views, so you can track strength, volume, consistency, and performance over the long term. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.hyperresponder.com/privacy-policy

Screenshots

Castra App4 screens
HyperResponder4 screens

Verdict

The call

The clearest difference is update cadence: Castra App at weekly against HyperResponder's every 2 months. Castra App also leads on iOS requirement (16.6 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

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

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

Both are free to download. Castra App sells 4 in-app purchases, starting at $4.99 per month and HyperResponder sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Castra App ships an update weekly, HyperResponder every 2 months. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

Scorecard2 real differences Ā· 4 level
Castra App versus HyperResponder: the parameters behind the verdict, then further details
ParameterCastra AppHyperResponder
PriceFreeFree
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS16.6 — better18.6
Further details — not scored
Size66 MB56 MB
Age rating17+17+
DeveloperCASTRA APP OODVYKO TECHNOLOGIES LTD

In-app purchases

4 purchases

Castra App

Subscriptions4
  • Athlete Subscription14 Days trial$4.991 Month
  • Coach Monthly Subscription14 Days trial$29.991 Month
  • Athlete Annual Subscription14 Days trial$49.991 Year
Show 1 more
  • Coach Yearly Subscription14 Days trial$269.991 Year
4 purchases

HyperResponder

Subscriptions2
  • HyperResponder Pro (Monthly)$4.991 Month
  • HyperResponder Pro (Yearly)7 Days trial$49.991 Year
One-time2
  • HyperResponder Pro (Founders)$99.99
  • HyperResponder Pro (Lifetime)$199.00

Questions

Is Castra App free?
Castra App is free to download, with in-app purchases available.
Is HyperResponder free?
HyperResponder is free to download, with in-app purchases available.
Do Castra App or HyperResponder have ads?
Neither Castra App nor HyperResponder shows ads.
Which is updated more often, Castra App or HyperResponder?
Castra App ships an update weekly, and HyperResponder every 2 months. Most recently, Castra App was updated on October 5, 2026 and HyperResponder on October 10, 2026.

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