Comparison

iSOQI EMD vs Vyyz

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

Head to head
About

iSOQI EMD

Features
Read full description

Merit International Group to develop an energy detector APP, provides our agents a convenient tool for managing members. Currently offers a variety of language versions, in the future we will continue to amplify. Agents can establish membership information, membership records detection record. Members provide health analysis feature that lets you know the physical condition of membership, dealer can provide membership-related health consultation and product recommendations.

About

Vyyz

This app helps you track your daily water intake with simple, one-tap logging. It offers smart reminders, weather-based intelligence, and integrates with Apple Health, all while prioritizing your privacy with local data storage.

Highlights
  • One-tap water logging
  • Complete privacy with local storage
  • Apple Watch app and multi-device sync
  • Smart, schedule-aware reminders
  • Weather-based hydration nudges
  • Apple Health integration
  • Personalized daily goal calculator
Features
Read full description

Vyyz is a privacy-first water and drink tracker designed exclusively for iPhone, iPad, and Apple Watch. Built with native technologies and a deep respect for user privacy, it helps you stay hydrated without compromising your personal data. One-Tap Logging. Add your usual with a single tap. The interface is deliberately simple – tap the plus button, and you're done. Vyyz learns your most-used amounts and adapts to your habits over time. Complete Privacy. Your water intake data never leaves your devices and your private iCloud account. Apple Watch App and Seamless Multi-Device Synchronization. Log your water intake anywhere and see it instantly on all your devices. Widgets and Apple Watch. Quick Add widgets on the Home Screen log your favorite amounts with one tap, a Daily Chart widget shows the day so far, and a Lock Screen gauge shows your progress. A complication that isn’t really all that complicated. Monitor your progress on your Watch with just a glance. Smart Reminders. Set your active hours and reminder frequency. Vyyz respects your schedule, sending gentle nudges only during your specified times. When you reach your daily goal, reminders automatically stop. Weather-Based Intelligence. Enable weather notifications to get extra reminders on hot days or when UV levels are high. Simply choose a city close to you from a pre-loaded list. Works with Apple Health. Using Vyyz with the Apple Health app helps you build a more complete picture of your wellness. With your permission, Vyyz can write water intake data to the Apple Health app, and read manual entries or data from other hydration apps. Drinks and Nutrients. Log your water intake, but you can add your own drinks, too: juice, coffee, sports drinks, anything you pour. Scan the nutrition label with the camera, and Vyyz reads the sugar, caffeine, sodium, vitamin C and minerals content, and logs them to Apple Health with every serving. Personalized Goals. Set your daily goal manually or use an intelligent calculator that considers your age, weight, activity level, diet, lifestyle and other factors. Based on guidelines from EU and US health authorities, it provides personalized recommendations. Privacy: https://vyyz.app/en/privacy/ Terms of Use: https://vyyz.app/en/terms/

Screenshots

iSOQI EMD1 screens
Vyyz4 screens

Verdict

The call

The clearest difference is in-app purchases: iSOQI EMD at none against Vyyz's 2. iSOQI EMD also leads on iOS requirement (10.0 vs 18.5). On price, update cadence, ads and device support there is nothing between them.

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

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

Both are free to download. Vyyz sells 2 in-app purchases, starting at $3.99 per month. iSOQI EMD asks for nothing beyond the download.

UpkeepUpdate frequency

iSOQI EMD ships an update every 6 weeks, Vyyz every 3 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard2 real differences Β· 6 level
iSOQI EMD versus Vyyz: the parameters behind the verdict, then further details
ParameteriSOQI EMDVyyz
PriceFreeFree
Positive reviewsβ€”100.0% of reviews
Update frequencyEvery 6 weeks β€” betterEvery 3 months
AdsNoNo
In-app purchasesNo β€” betterYes
Monetizationβ€”Subscription
DevicesiPhone, iPodiPhone, iPad, Apple Watch β€” better
Requires iOS10.0 β€” better18.5
Further details β€” not scored
Size23 MB28 MB
Age rating4+17+
DeveloperηΎŽεˆ©ε›½ι™…ι›†ε›’Tamas Bartal

In-app purchases

None

iSOQI EMD

No in-app purchases

2 purchases

Vyyz

Subscriptions2
  • Monthly subscription7 Days trial$3.991 Month
  • One-year subscription1 Month trial$44.991 Year

Questions

Is iSOQI EMD free?
iSOQI EMD is free to download, with no in-app purchases.
Is Vyyz free?
Vyyz is free to download, with in-app purchases available.
Do iSOQI EMD or Vyyz have ads?
Neither iSOQI EMD nor Vyyz shows ads.
Which is updated more often, iSOQI EMD or Vyyz?
iSOQI EMD ships an update every 6 weeks, and Vyyz every 3 months. Most recently, iSOQI EMD was updated on November 2, 2026 and Vyyz on October 30, 2026.

Other comparisons