HDOR vs Smart Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HDOR
This app encourages consistent physical activity through a 100-day challenge. It focuses on building healthy habits and community support for participants of all fitness levels. Track your progress, celebrate achievements, and become part of a global movement.
- 100-day fitness challenge
- Builds consistent activity habits
- Community support and motivation
- Track personal progress
- Celebrate milestones
- Global participation
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100 Days of Running (HDOR) is a global fitness movement started in 2015 with a simple goal - to help people make running and physical activity a part of their everyday lives. The challenge is built around consistency, discipline and community. For 100 days, participants commit to staying active, building healthier habits and pushing themselves a little further each day. The 2026 edition begins on 10 October 2026 and is expected to bring together more than 50,000 participants from India and around the world, making HDOR one of the largest multi-day fitness challenges of its kind. HDOR is not about being the fastest runner. It is about showing up, staying committed and making movement a habit - whether you are taking your first steps towards fitness or already an experienced runner. Track your journey, stay motivated, participate in challenges, celebrate milestones and be part of a growing community that believes every goal is achievable with consistency. Mumkin Hai. Come What May. 100 Days. One Commitment. A Habit for Life.
Smart Sync
This app syncs with Titan smartwatches to track daily activity, heart rate, and SpO2. It monitors sleep patterns, manages notifications, and offers features like female health tracking and Alexa integration. Stay connected and manage your well-being effortlessly.
- Activity tracking and progress trends
- Heart rate and SpO2 monitoring
- Sleep data synchronization
- App notification customization
- Female health tracking
- Alexa, Phone Finder, Music/Camera control
- Sedentary and hydration reminders
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The ultimate app to sync your latest Titan smartwatches - Titan Smart. - Track your daily activity metrics and progress and see weekly and monthly performance trends - Monitor your Heart Rate and spO2 metrics through interactive graphs and UI - Sync your Sleep data to keep track of your sleep quality, Deep sleep, Light sleep and Awake time, in addition to other useful metrics. - Customize the list of apps that you want to receive notifications from, on our watch - don't miss out on important calls or messages anymore! - With Female Health Tracking, you no longer need to calculate anything mentally. We've got you covered. - Enable features that simplify your life like Alexa, Phone Finder, Music and Camera control - Set Sedentary Reminders and Hydration alerts so that you can focus on work and the watch does the job of reminding you to move or take a sip! Unlock unlimited possibilities with Titan Connected World. Sync your style! *Actual features may vary from product to product. Refer to the digital user manual for your watch on www.titan.co.in for details.
Screenshots
Verdict
The clearest difference is rating: HDOR at 3.4 against Smart Sync's 1.0. HDOR also leads on update cadence (fortnightly vs every 2 months) and review sentiment (48% vs 26%). Smart Sync's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, 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.
HDOR holds the better App Store score, 3.4 against 1.0. That said, the two scores are not equally well evidenced: HDOR has 22 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 48% of HDOR's written reviews are positive against 26% of Smart Sync's.
HDOR ships an update fortnightly, Smart Sync every 2 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.
| Parameter | HDOR | Smart Sync |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (22 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 48.1% of reviews — better | 26.4% of reviews |
| Number of ratings | 22 — better | 2 |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 123 MB | 90 MB |
| Age rating | 12+ | 4+ |
| Developer | Procam International Private Limited | Titan Company Limited |
Customer experience
HDOR
Smart Sync
Bugs and requests
HDOR
Not enough reviews yet to summarise bugs or requests.
Smart Sync
Reported bugs
20 issues- App keeps crashing after dashboard opens
- Unable to scan Titan watch
- Watch not pairing again after unpairing on iOS
- App not connecting to phone after unpairing
- App shows connected to phone but phone shows disconnected
Show 15 moreShow fewer
- Average pace number appearing more than max pace
- Notifications turned off turn on again automatically
- App blinks and sends back to home page
- App crashes on startup
- Call and other notifications not received
- App not sending OTP
- Software full of bugs in watch and app
- App crashes when opened
- App keeps hanging
- Pairing is taking lot of time
- App keeps logging out
- Shows device not connected even if paired
- Unable to pair watch after reset
- QR scanner picks up blur image and pairing fails
- App not sending activation SMS
Requested features
13 requests- Update the app for updated software
- Provide a guide for QR code on watch
- More robust and feature-rich watch
- More watch faces with all information
- Improve watch face design to show time, date, battery, steps, HR
Show 8 moreShow fewer
- Add dark mode option
- Improve sleep data measurement
- Fix OTP issues for international users
- Add option to forget device and reconnect for iOS users
- Improve app stability and reduce crashes
- Provide regular app updates
- Improve notification delivery speed
- Allow manual data entry to iOS health app
In-app purchases
HDOR
No in-app purchases
Smart Sync
No in-app purchases
