HYDROX vs Rep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Personalized hydration targets
- Training intensity adjustment
- One-tap logging
- Smart reminders
- HealthKit integration
- Apple Watch app
- Widgets
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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
Rep
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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
Verdict
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
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.
| Parameter | HYDROX | Rep |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 13 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | BALL VENTURES LLC | Mitaanshu Agarwal |
In-app purchases
HYDROX
- HYDROX Pro7 Days trial$0.997 Days
- HYDROX PRO Monthly7 Days trial$2.991 Month
- HYDROX Pro7 Days trial$24.991 Year
- HYROX Americas DC Race Pack$14.99
- HYROX Miami Race Pack$14.99
Rep
- Rep - Workout Logger Pro Monthly7 Days trial$2.991 Month
- Rep - Workout Logger Pro Yearly7 Days trial$19.991 Year









