RunDay - run/walk coaching PT

Contains adsIn-app purchases
4.5
35.2K reviews
1M+
Downloads
Content rating
Everyone
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About this app

★ Google Play Best App of 2016 ★

[Why RunDay?]

▶ 100% Full-voice training
eling like you're running with your own trainer, although you're starting running for the first time, you can finish the 30 minutes running with RunDay trainer.

▶ Various customized running plan
RunDay provides 30 mins running for beginners (24 days course), interval training (6 days repeat), Everyday 30 mins running (everyday repeat), Free running (users customizing running),Hiking, Trail running, and challenge running.

▶ Real-time non-face-to-face marathon
You can run together with runners from all over the world by participating in non-face-to-face real-time competitions in their respective regions.

▶ Stair climbing challenge
We provide a stair climbing training program that allows you to conquer landmark buildings around the world.

▶ Sound mixing system
You can concentrate in running with the suitable music for your running intensity. You can also listen to the music that you want through the music streaming application.

▶ Transverse mode
RunDay provides transverse mode, even if you're running with the arm band, the left and right transverse mode would make you feel comfortable while you're running.

▶ Smartwatch compatibility
You can share the workout data through the connection of Smartwatch.

▶ Runday WearOS app support
With WearOS Runday watch app, you can do without a mobile phone.
Try using the Runday Watch app tile feature to speed up your workout.
To start exercising quickly, try using the tile feature provided by the Runday Watch app. You can reach the app with a simple swipe from the home screen.

▶ Pedometer
You can check the amount of activity in your daily life by measuring your steps in real time without running the app.

[Runday Wear OS smart watch membership information]
* Run more systematically and freely with Runday Wear OS smart watch membership!

▶ Membership benefits
- All newly added training plans such as 30-minute running challenge, 30-minute running ability improvement, 50-minute running challenge, etc.
- Current exercise status, training information, measurement information, record analysis, heart rate information, etc.

▶ All member benefits
- Measurement-based free running, free walking plan, etc.
- Current exercise status, training information, measurement information, record analysis, heart rate information, etc.

※ Access authority guide for using RunDay
Access authority below is required to use the app.

[Choice access authority]
1. Dialing and managing: permissions required to stop ongoing workouts if calls are made during workouts

2. Device Photo/Video Permission: Permission required to store or import photos/video to my phone storage

3. Camera Permission: Permission necessary to take pictures using the camera and update them on social media

4. Audio permissions: The permissions required to import and play stored music from my phone storage.

5. Microphone permission: This is the permission you use to send support to your friend by voice.

6. Nearby device permission: permission for Bluetooth connection and beacon communication in specific challenges.

* You can still use the app by withdrawing your choice access.

[Required Access authority]
1. Location Authority: This authority is required when you're doing workout using the data from Wi-fi or base station.

2. Notification Authority: Authority required for exercise information notification and pedometer information notification.

3. Physical Activity Authority: The authority required to measure steps and exercise perception.

After agreeing to the required access rights, you can reset or withdraw the access rights as follows, but if you withdraw the rights, you will not be able to use the app.

[RunDay Terms and Conditions]
https://bit.ly/342B9q0

[RunDay Privacy Policy ]
https://bit.ly/3AviOy3

Customer center
TTAM INC.
Contact number : +82 070-4050-8537
10:00 AM ~ 5.00 PM (GMT+9) (Break on weekend/legal holiday)
Updated on
Dec 26, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Messages
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.6
34.8K reviews
Yannick Khong
October 21, 2025
Customized Running plan voice isn't in English. Safe to say that they are ignoring their English userbase until they reveal bugs rather than being proactive. Still takes forever to load despite multiple updates. Would still recommend for beginner/intermediate runners looking for tempo and interval runs between 30/50min but will start looking for alternative apps for other things.
5 people found this review helpful
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주식회사 땀
June 24, 2024
Runday offers full voice training unlike other instrumentation apps, so you need to download the first one-time training program. On average, the time to download the training program can take about 20 seconds. However, if the network or Wi-Fi is unstable or in an area with speed limits, it may take more than a minute due to slow download speeds.
Tae
November 30, 2025
Good program, but ads are annoying. The running programs are fantastic, but unless you pay to remove the ads, ads keep popping up after each running session which harms the exercising mood.
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주식회사 땀
December 5, 2025
안녕하세요, 런데이입니다. 현재 런데이는 다양한 운동 플랜을 무료로 제공하고 있으며, 서비스 운영 및 유지를 위해 부득이하게 광고를 노출하고 있습니다. 현재 앱 실행 이후 팝업이 출력되지만 하루동안 보지 않기를 할 경우 더이상 출력되지 않으며 이외의 광고 노출은 운동을 진행하는데 있어서 방해를 받지 않는 선에서 최소한의 광고만 노출하고 있는 점, 그리고 건강과 생활에 필요한 제품들을 선별해서 광고에 싣는점 참고부탁드립니다. 앞으로도 런데이와 함께 건강한 러닝 이어가시길 바라며, 더욱 편리한 서비스를 제공할 수 있도록 노력하겠습니다.
Zele
April 5, 2021
I found this app from a kdrama called Run On (the product placement was top notch) and it's motivated me to run week after week. I might even be addicted now, eventhough I didn't like running at all before. It's free and the ads are barely noticeable. You have the freedom to repeat courses, so I can progress at my own pace. I also put the speaker in Korean to help me improve in the language, and he's words are so motivational. Definitely recommend. I've even gotten my siblings to run with me.
26 people found this review helpful
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주식회사 땀
April 6, 2021
Thank you for giving me the best rating. You have to keep running Do not give up because it works Live a healthy life with RUNDAY Please make it. Thank you.

What’s new

1. Bug fixs

App support

Phone number
+827041235341
About the developer
(주)땀
runday@ttam.ai
서초구 강남대로 311 13층 1302호 (서초동,한화생명보험빌딩) 서초구, 서울특별시 06628 South Korea
+82 10-3398-7515

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