Comparison

HYDROX vs Rep

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

Head to head
About

HYDROX

Calculates personalized daily hydration targets based on body weight and training intensity. Offers smart reminders and quick logging features. Pro version integrates with HealthKit for adaptive hydration and includes advanced features like heart rate-based intensity adjustments and travel mode.

Highlights
  • Personalized hydration targets
  • Training intensity adjustment
  • One-tap logging
  • Smart reminders
  • HealthKit integration
  • Apple Watch app
  • Widgets
Features
Read full description

Your hydration target, calculated. Not guessed. HYDROX uses your body weight and training intensity to set a daily target. Half your weight in ounces is the baseline, from Dr. Andy Galpin and Huberman Lab, and training days add fluid using the Galpin equation. Built for athletes: HYROX, Barry's, F45, Orangetheory, CrossFit, runners, cyclists, surfers, skiers, sports enthusiasts and everyday athletes. Not step-counter civilians. SET YOUR BASELINE Your target is your weight in pounds, divided by 2, in ounces, as your starting point (Galpin, Huberman Lab). TRAINING MODE Select Easy, Moderate, or Hard. The additional amounts to drink for every 15-20 minutes of work (Galpin, Huberman Lab) are added. Rest days stay at baseline. ONE-TAP LOGGING Tap the gauge to log, log from your widget or log from the lock screen without opening the app. SMART REMINDERS Hourly pacing that adjusts to your progress, backs off when you're ahead, and nudges when you're behind. HYDROX PRO • Adaptive Hydration takes workout data from HealthKit and adjusts your daily target automatically. Set it and forget it. • Auto-intensity based on heart rate, so a hard session pushes your target up and a rest day keeps it at baseline. • Apple Watch app with gauge and complications on any watch face. • Log from your wrist in a single tap. • Jet Set Mode toggle - travel days impact your hydration needs. You can include flight time to adjust your hydration target. • Heat Wave toggle - takes climate conditions into account (if you train outdoors). EVERYTHING ELSE • HealthKit sync • Lock screen and home screen widgets • Quick actions from home screen • No account, no ads, data stays on your device Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hydrox.app/privacy.html

About

Rep

Features
Read full description

Log your lifts in 2 taps. Free of social-feed bloat. Rep is a privacy-first workout logger built for serious lifters who left Strong's subscription and Hevy's social feed behind. WHY REP - Log a set in 2 taps: weight (last-set default) + reps. - 100+ pre-seeded lifts + add custom. - Routines for guided workouts. Rest timer with haptic feedback. - Stats: per-lift trend, 1RM estimate, volume per muscle group. - 100% on-device via SwiftData. REP PRO - Rep Pro is an auto-renewable subscription (monthly or yearly) that unlocks unlimited routines, the plate calculator, and CSV export. - Free tier: unlimited workouts + 3 routines + full stats. - Payment is charged to your Apple Account at confirmation of purchase and renews automatically unless turned off at least 24 hours before the end of the period. Manage or cancel in your Apple Account settings. ABOUT Rep is built for lifters who want to log fast and analyze later. Apple Watch ergonomics in v1.1. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://rep.uptrail.ai/privacy

Screenshots

HYDROX4 screens
Rep3 screens

Verdict

The call

HYDROX and Rep are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. HYDROX sells 5 in-app purchases, starting at $0.99 per 7 days and Rep sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
HYDROX versus Rep: the parameters behind the verdict, then further details
ParameterHYDROXRep
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size13 MB4 MB
Age rating4+4+
DeveloperBALL VENTURES LLCMitaanshu Agarwal

In-app purchases

5 purchases

HYDROX

Subscriptions3
  • HYDROX Pro7 Days trial$0.997 Days
  • HYDROX PRO Monthly7 Days trial$2.991 Month
  • HYDROX Pro7 Days trial$24.991 Year
One-time2
  • HYROX Americas DC Race Pack$14.99
  • HYROX Miami Race Pack$14.99
2 purchases

Rep

Subscriptions2
  • Rep - Workout Logger Pro Monthly7 Days trial$2.991 Month
  • Rep - Workout Logger Pro Yearly7 Days trial$19.991 Year

Questions

Is HYDROX free?
HYDROX is free to download, with in-app purchases available.
Is Rep free?
Rep is free to download, with in-app purchases available.
Do HYDROX or Rep have ads?
Neither HYDROX nor Rep shows ads.

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