SleepisolC vs K·DERM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SleepisolC
This app offers customized sound therapy and versatile modes like sleep, stress relief, and focus. It connects seamlessly with a dedicated device to help users achieve a healthier lifestyle through improved sleep and mental well-being.
- Customizable intensity and time settings
- Multiple modes: sleep, stress, healing, focus
- Binaural beats sound therapy
- Automatic device connection
- User-friendly interface
Read full descriptionHide full description
Experience enriches your life to be healthier with its diverse functions. Why choose SleepisolC? • Customized Solution: Tailor your experience by adjusting stimulation intensity and time from levels 1 to 5 what works best for you. • Versatile Modes: Explore a variety of modes search as sleep, stress, healing, and focus for your specific needs. • Sound Therapy: Utilize the binaural beats function in 4 modes (sleep, concentration, stress, healing). - What are Binaural Beats? Sounds regulate brainwaves with specific frequencies. (Experience optimal effects when used in conjunction with your Sleepisol device.) • Convenient Connection: Sleepisol device automatically connects when you launch the app, eliminating a cumbersome setup. • User-Friendly Interface: The intuitive and easy-to-navigate UI ensures a seamless experience. Start a healthier life with sleepisol C! • Deep sleep: For those who want to fall asleep comfortably and have a deep sleep • Improved focus: For those who face difficulty focus on their studies or work • Stress relief: For those who want to relieve stress in their busy daily lives • Healing: For those who want to calm their mind through comfortable relaxation. The following permission setting are required to connect with a sleepisol device. • Permission for BLE (Bluetooth) search and connection Sleepisol devices can be purchased on the site below or within the sleepisolC App. • sleepisol website: https://sleepisol.com/
K·DERM
Read full descriptionHide full description
K·DERM is an information helper for visitors exploring Korean aesthetic dermatology. ◆ 1-minute skin quiz — answer a few questions about your concerns, area, age and skin; get treatment categories matched by logic informed by dermatologists' published opinions. ◆ Market price ranges — typical ranges and publicly listed reference prices for 20+ treatments (Ultherapy, Thermage, Botox, Rejuran and more). ◆ Seoul clinic directory — Myeongdong, Gangnam, Hongdae, Itaewon and more, with addresses and official websites. ◆ 5 languages — English, 日本語, 繁體中文, 简体中文, 한국어. ※ For reference only — not medical advice or diagnosis. Always consult a medical professional. Prices vary; confirm directly with each clinic.
Screenshots
Verdict
The clearest difference is ads: SleepisolC at none against K·DERM's shown. K·DERM's advantage is update cadence (every 3 days vs every 5 weeks). On price, in-app purchases, device support and iOS requirement 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.
SleepisolC ships an update every 5 weeks, K·DERM every 3 days. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.
| Parameter | SleepisolC | K·DERM |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 5 weeks | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 210 MB | 33 MB |
| Age rating | 4+ | 12+ |
| Developer | leesol | GI WOONG PARK |
In-app purchases
SleepisolC
No in-app purchases
K·DERM
No in-app purchases









