YSJActive vs Sip
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
YSJActive
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Download the YSJActive app to easily book classes and manage your fitness experience - anytime, anywhere. Make a reservation, get added to a wait list, purchase class packages, check your profile and membership status, keep up to date with the latest products and services, and more – all from your device. Visit https://www.yorksj.ac.uk/health-and-wellbeing/ysjactive to learn more.
Sip
This app tracks hydration by modeling your body's real-time fluid status using a decay algorithm. It automatically adjusts your daily water intake goals based on weather and activity, syncing seamlessly with Apple Health.
- Real-time hydration decay modeling
- Adaptive goal setting
- One-tap Quick Log buttons
- Live Activity & Dynamic Island support
- Interactive Widgets
- Deep Apple Health integration
- Streak motivation system
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Your body isn't a bucket — it’s a river. Standard water trackers treat hydration like a static container you fill up until you hit a random number. Sip changes the game by treating your hydration like a metabolic battery that naturally drains throughout the day. Using our proprietary decay algorithm, Sip visualizes your body’s real-time fluid status, giving you an accurate, science-backed view of when you actually need to drink. Why choose Sip? METABOLIC DECAY TRACKING Most apps ignore that your body processes and loses water continuously. Sip accounts for this, showing you a living hydration level that provides a realistic picture of your health. No more false sense of security after a single morning glass—Sip shows you the truth. ADAPTIVE GOALS Your water needs change daily. Sip connects securely to Apple Health and WeatherKit to automatically adjust your daily intake requirements. If you are logging heavy workouts or experiencing a heat wave, Sip intelligently raises your goal to keep you performing at your peak. SEAMLESS ECOSYSTEM INTEGRATION Your data should be where you are. Sip features: Dynamic Island & Live Activities for instant, at-a-glance status updates. Interactive Home Screen Widgets that let you log drinks in one tap. Apple Watch Complications that track your decay directly from your wrist. Two-Way Apple Health Sync so your logs always stay consistent across all devices. STREAK MOTIVATION Build long-term health habits with our integrated streak system. Visualize your weekly and monthly progress with professional-grade, native Apple charts that help you identify patterns and stay consistent. PRIVACY FIRST Sip does not track your data on our servers. All processing happens on your device and inside Apple Health. You own your health data, and we keep it that way. KEY FEATURES: Real-time hydration decay modeling Adaptive goal setting based on weather and activity One-tap Quick Log buttons (fully customizable) Native Live Activity & Dynamic Island support Interactive Widgets for iPhone and Apple Watch Deep Apple Health integration for total data accuracy Dark mode optimized, minimalist interface Stop filling buckets. Start managing your hydration stability with Sip. Download Sip today and experience the future of intelligent health tracking.
Screenshots
Verdict
The clearest difference is update cadence: Sip at weekly against YSJActive's every 17 months. YSJActive's advantage is iOS requirement (15.6 vs 18.6). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
YSJActive ships an update every 17 months, Sip weekly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.
| Parameter | YSJActive | Sip |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 17 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 15.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 31 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | York St. John Computer Science | Michael Brockman |
In-app purchases
YSJActive
No in-app purchases
Sip
No in-app purchases









