Comparison

hai vs Pebble Core

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

Head to head
About

hai

This app helps you install and manage a smart shower system. It tracks your water and energy usage, providing insights and tips to reduce environmental impact and encourage self-care rituals. Transform your daily shower into a mindful experience.

Highlights
  • Easy installation guide
  • Track water and energy usage
  • Customize LED eco-goal alerts
  • Mobile alerts for water temperature
  • At-home spa ritual inspiration
Read full description

The hai app guides you through installing your hai smart shower in minutes - no fancy tools or plumber needed. Then pair it with your showerhead to find out why it’s never been more fun to make a difference. You’ll see the eco-impact of your showers’ water use, energy use, temperature and duration – and their collective impact too. Do better for yourself and better for the planet with a wellspring of personal data, insights, inspiration and tips. Let the self-care revolution begin... • Use the companion guide for an easy install • Track your water and energy usage over time • Customize LED alerts to reach your eco goals • Get mobile alerts when your water is at the perfect temp • Elevate your life with new at-home spa rituals This app requires a hai showerhead and an iPhone 6s or later with iOS 13 or later.

About

Pebble Core

Manage your Pebble smartwatch, Index 01 ring, and other Core Devices products. Pair devices, customize settings, and explore a gallery of watchfaces, apps, and tools. Sync health data and control notifications.

Highlights
  • Bluetooth pairing
  • Watchface and app gallery
  • Firmware updates
  • Notification control
  • Health data sync
  • Developer tools
Read full description

Pebble Core is the official iPhone app for managing your Pebble smartwatch, Pebble Index 01 ring and other Core Devices products. Pair your watch and/or ring, customize your settings, and discover a growing ecosystem of watchfaces, apps, and tools designed for your device. Features include: • Bluetooth pairing and reconnection • Watchface and app gallery browsing • Firmware updates and bug reporting • Notification control and preferences • Health data sync (steps, sleep, heart rate*) • Developer tools for sideloading and debugging This app supports all Core Devices smartwatches (Pebble 2 Duo, Pebble Time 2, Pebble Round 2), Pebble Index 01 ring, and older Pebble models (Pebble, Pebble Steel, Pebble Time, Time Steel, Time Round, and Pebble 2) Built for long battery life, fast sync, and full compatibility. This app is open source - https://github.com/coredevices/mobileapp.

Screenshots

hai4 screens
Pebble Core4 screens

Verdict

The call

The clearest difference is ads: Pebble Core at none against hai's shown. Pebble Core also leads on update cadence (every 10 days vs monthly) and monetization model (free vs ad-supported). hai's advantage is review sentiment (97% vs 67%) and rating (4.9 vs 4.4). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

hai holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 118 and 77 respectively. Written reviews point the same way: 97% of hai's written reviews are positive against 67% of Pebble Core's.

UpkeepUpdate frequency

hai ships an update monthly, Pebble Core every 10 days. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

Scorecard6 real differences · 4 level
hai versus Pebble Core: the parameters behind the verdict, then further details
ParameterhaiPebble Core
PriceFreeFree
Rating4.9 (118 ratings) — better4.4 (77 ratings)
Positive reviews97.4% of reviews — better67.4% of reviews
Number of ratings118 — better77
Update frequencyMonthlyEvery 10 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size75 MB166 MB
Age rating4+12+
DeveloperGethai, Inc.Core Devices LLC

Customer experience

hai

All ratings100 ratings
Positive98.0%
Neutral1.0%
Negative1.0%
Written reviews39 reviews
Positive97.4%
Neutral0.0%
Negative2.6%

Pebble Core

All ratings75 ratings
Positive85.3%
Neutral4.0%
Negative10.7%
Written reviews46 reviews
Positive67.4%
Neutral4.3%
Negative28.3%

User reviews

hai

From 118 App Store ratings

What we love

  • 💡 App usefulness for shower head
  • 👍 Easy to use and install
  • 📈 Water usage tracking
  • 💧 Water savings conscious
  • ✨ Neat hydro turbine charging

Room to improve

  • 🐛 App connection issues
  • 🐛 App doesn't always connect
  • 🐛 Bluetooth requires phone nearby
  • 🐛 Slight hum from impeller

Pebble Core

From 77 App Store ratings

What we love

  • 🚀 Usable for basic functionality
  • 👍 Works great
  • 👍 No issues since installing
  • 👍 Supports legacy Pebble watches
  • 👍 Excited for the future

Room to improve

  • 🔒 Requires restrictive Rebble login
  • 🔒 Violates privacy

Bugs and requests

hai

Reported bugs

2 issues
  • App may connect or more often it won't
  • Asks to check WiFi when it works sometimes

Requested features

3 requests
  • Push notifications for water use limit
  • Wi-Fi connectivity instead of Bluetooth
  • Infuse addons

Pebble Core

Reported bugs

1 issue
  • None mentioned

Requested features

1 request
  • Standard email registration option

In-app purchases

None

hai

No in-app purchases

None

Pebble Core

No in-app purchases

Questions

Is hai free?
hai is free to download, with no in-app purchases.
Is Pebble Core free?
Pebble Core is free to download, with no in-app purchases.
Which has better reviews, hai or Pebble Core?
hai is rated higher. hai averages 4.9 out of 5 from 118 ratings, while Pebble Core averages 4.4 from 77 ratings.
Do hai or Pebble Core have ads?
hai shows ads; Pebble Core does not.
Which is updated more often, hai or Pebble Core?
hai ships an update monthly, and Pebble Core every 10 days. Most recently, hai was updated on November 3, 2026 and Pebble Core on November 12, 2026.

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