iTech Duo vs Letsfit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iTech Duo
Enhance your analog smartwatch experience by tracking daily activity, setting fitness goals, and monitoring sleep patterns. Receive notifications, control your camera, and locate your phone with this companion app.
- Set calorie and distance goals
- Track water intake and weight
- Monitor sleep stages (Light, Deep, Awake)
- Set silent alarms
- Remote camera control
- Find your phone feature
- Connected GPS for route tracking
- Sedentary reminders
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Get the best of both worlds with your analog smartwatch, the iTech Duo! The iTech Duo app helps take your iTech Duo analog smartwatch to the next level. When your device is paired with the app it will not only challenge you during your days but it will help track your progress as you sculpt the new YOU! Once you’re fully connected, you can expect to enjoy the following wonderful features: · Set calorie and distance goals based on your daily steps goal · Get quick look updates with the newly improved motion gesture · Log the amount of water you drank for the day · Record your weight so you never miss a weigh-in again · Record your sleep and view ‘Light’, ‘Deep’ and ‘Awake’ levels of sleep based on how well (or not so well) you slept for the night · Set Silent Alarms (so you wake yourself and not others around you) · Enjoy taking photos with the flick of your wrist · Receive notifications from your most favorite apps and services! · Find your phone – Will ensure that you never leave anywhere without your phone again! · Connected GPS will allow you to know exactly where you went during your morning run · Sedentary Reminder will allow you to remain active during your day · Backed with IP67 Water Resistance, the iTech Duo will help you tackle every day splashes (your iTech Duo device should not be submerged in water) · And so much more!!! This app can be used together with Apple Health to provide an overall more fuller experience for your health related activities and statistics. This app utilizes GPS location to record your route while running (connected GPS function) while your watch and phone are paired. Stylish enough for your late night adventures, strong enough to withstand your full circuit workouts, the iTech Duo analog smartwatch is perfect for every event!
Letsfit
Track your daily fitness and wellness with this app. It records and interprets health data like steps, sleep, and heart rate, and analyzes exercise routines with route mapping. It also acts as a notifications assistant for your connected smartwatch.
- Health data display (steps, sleep, heart rate, calories)
- Exercise data analysis with route tracking
- Smartwatch notifications assistant (calls, SMS)
- Professional data interpretations
- Synchronization with Apple Health (HealthKit)
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Letsfit cares about people's daily fitness and wellness. When you use the Letsfit app for long enough in conjunction with exercise, you will see noticeable improvements in your health. The main features: 1. Health data display: Letsfit records data relevant to your physical condition such as steps taken, sleep hours, heart rate, calories burned, while also provides you with professional interpretations over these data. 2. Exercise data analysis: Letsfit is also able to record while you exercise, and will display various data, including a detailed route and various exercise data analysis afterwards. 3. Notifications assistant: Letsfit pushes CALL、SMS and other app notifications to the connected smartwatch, you can mute, answer, or hang up on the connected device while receiving an incoming call. We will keep updating the app to support more devices, with more reliability and exciting features. Please note: screenshots shown represent features supported but devices might not have all the features listed. Connect to synchronize data to Apple Health (HealthKit), to achieve data movement, data and consumed calories sleep simultaneous recording to Apple Health (HealthKit).
Screenshots
Verdict
The clearest difference is rating: Letsfit at 4.2 against iTech Duo's 3.7. Letsfit also leads on ratings volume (6.3K vs 269). iTech Duo's advantage is review sentiment (34% vs 25%) and iOS requirement (9.0 vs 12.0). On price, update cadence, ads and in-app purchases 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.
Letsfit holds the better App Store score, 4.2 against 3.7. That said, the two scores are not equally well evidenced: Letsfit has 6.3K ratings behind it against 269, so its average is the more settled of the two. Written reviews complicate that: 34% of iTech Duo's written reviews are positive against 25% of Letsfit's, so the app with the better star average is not the one people write more warmly about.
iTech Duo ships an update every 2 months, Letsfit every 5 weeks. The most recent releases landed on October 29, 2026 and November 2, 2026 respectively.
| Parameter | iTech Duo | Letsfit |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (269 ratings) | 4.2 (6.3K ratings) — better |
| Positive reviews | 33.8% of reviews — better | 25.3% of reviews |
| Number of ratings | 269 | 6.3K — better |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 50 MB | 134 MB |
| Age rating | 12+ | 4+ |
| Developer | AX Technologies | Letsfit LLC |
Customer experience
iTech Duo
Letsfit
User reviews
iTech Duo
From 269 App Store ratingsWhat we love
- 👍 Stylish and professional design
- 💪 Effective step tracking functionality
- 🔋 Good battery life (3-4 days)
- 💰 Affordable price point
- ⌚ Dual analog and digital display
Room to improve
- 🐛 Persistent Bluetooth connection issues
- 🐛 App fails to detect watch device
- 📵 Notification system unreliable
- 😴 Sleep tracking highly inaccurate
- 🔌 Charging problems and defective chargers
Letsfit
From 6.3K App Store ratingsWhat we love
- 🚀 Great overall watch
- 👍 Affordable and stylish
- 👍 Helpful health tracking features
- 👍 Comfortable and durable
- 👍 Excellent customer support
Room to improve
- 🐛 Syncing and connectivity issues
- 🐛 Inaccurate step and sleep tracking
- 🐛 Unreliable heart rate monitoring
- 🐛 Frequent software glitches and crashes
- 🔋 Short battery life
Bugs and requests
iTech Duo
Reported bugs
15 issues- Watch won't connect to phone despite proximity
- App cannot find device even when Bluetooth shows connected
- App crashes on iPhone (versions 11 and 6S)
- Notifications not displaying despite being enabled
- Sleep tracker shows no data or highly inaccurate readings
Show 10 moreShow fewer
- Charging port connection issues with charging puck
- Analog clock loses 4 minutes per 24 hours
- Digital time becomes offset (6+ hours)
- Watch buzzes constantly for no reason
- Step counter sends duplicate data to health app
- Activity tracker fails to calculate calories and distance
- Wrist raise to wake feature doesn't work
- App won't reconnect after accidental disconnect
- Firmware updates break app compatibility
- Find iPhone/Watch features don't work properly
Requested features
12 requests- Blood pressure and oxygen level tracking
- Ability to answer calls from watch
- More app notification options (Snapchat, Messenger)
- Manual sleep time adjustment
- Direct step tracking on watch without app
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- Time setting directly on watch
- Stopwatch and timer integration
- Disable active display option that actually works
- Manual device reconnection after accidental disconnect
- Daytime sleep tracking mode
- Water resistance clarification and improvement
- Ability to reply to messages
Letsfit
Reported bugs
4 issues- Watch time not updating correctly
- App fails to sync data consistently
- Inability to change watch faces
- Disconnection issues between watch and phone
Requested features
5 requests- Add more workout modes
- Allow editing of activity data
- Improve notification handling
- Provide map tracking for activities
- Add blood pressure monitoring
In-app purchases
iTech Duo
No in-app purchases
Letsfit
No in-app purchases








