Interval Flow vs TEHLIN NExT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interval Flow
This app revolutionizes fitness routines with deep customization and advanced tracking for various activities like HIIT, Yoga, and CrossFit. It allows users to create, share, and follow personalized workouts with features like color-coded intervals, real-time progress tracking, and voice assistance.
- Color-coded intervals
- Customizable circuits
- Real-time progress tracking
- Voice assist and search
- Exercise library
- Workout sharing
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Interval Flow: Experience a Workout Revolution Interval Flow is your ultimate fitness companion, designed to transform your workout experience with deep customization and advanced tracking. This versatile app is perfect for a wide range of activities including HIIT, TABATA, CrossFit, Yoga, Pilates, Meditation, and more. With Interval Flow, you can stay focused on your fitness goals while the app handles the details. Key Features: - Color-Coded Intervals: Customize your workout visually with color-coded intervals. Set distinct colors for warm-ups, high-intensity bursts, rest periods, and more, to easily navigate through your routine. - Exercise Library: Build your workouts with ease! Add new exercises or select from the existing ones to tailor your workout to your specific needs. - Real-Time Progress Tracking: Keep a live tab on your workout progress. The dynamic interval list updates in real-time, ensuring you know exactly where you are in your routine. - Customizable Circuits: Create the perfect workout sequence by arranging various exercises into repeatable circuits tailored to your fitness level and goals. - Personalized Interval Warnings: Get timely alerts before an interval ends. Customize the warning sounds to suit your style, ensuring smooth transitions without missing a beat. - Interactive Workflow: Enjoy crafting your workouts with a user-friendly interface that’s as intuitive as it is functional. Setting up your ideal workout regime is now as engaging as the workout itself. - Voice Assist: Let our advanced voice assist guide you through your exercises, announcing what’s next so you can remain focused on your form and intensity. - Voice Search: Quickly find your favorite workouts using voice commands, making your preparation seamless and hands-free. - AirShare: Share your custom workouts with friends or clients effortlessly using AirDrop, enhancing connectivity and interaction. Why Choose Interval Flow? With Interval Flow, you don't just exercise, you experience a revolution in workout efficiency and enjoyment. The app’s intuitive interface and comprehensive customization options make it the optimal companion for anyone serious about fitness. Whether you're powering through a high-intensity session or seeking tranquility in yoga, Interval Flow adapts to your pace and preference. Unlock your potential with Interval Flow – where your workout meets innovation. Interval Flow Subscription: The app includes a 1 month long auto-renewable subscription with a 3-day free trial, which will unlock premium features, like unlimited workouts, timer program editing and autoplay and costs $4.99/ month. It will be charged to your credit card through your iTunes account and will automatically renew unless you canceled at least 24 hours before the end of the current period. Any unused portion of a free trial period will be forfeited when you purchase the subscription. Though your subscription for the current month cannot be canceled, you can turn auto-renewal off in your account settings after purchase. See the instructions here: https://support.apple.com/en-us/HT202039 You can read the terms of use and privacy policy here: https://kapi90.github.io/hiit_timer_privacy_policy.html End User License Agreement (EULA) of the App Store applies: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
TEHLIN NExT
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TEHLIN NExT APP 一鍵掌控,享受智慧行動生活 ■用户友善設計,輕鬆微調,快速應變 NExT APP作為TEHIN MPK系列的控制中心,使用者或臨床醫生可以透過 NExT APP直覺輕鬆地設定微調德林全系列智能膝關節,以滿足日常活動變化時的需求。 創新AI智動感知技術,持續適應用戶的需求和步態變化,帶給用戶更多的自由和選擇,盡情享受智慧行動生活。 ■智慧模式,一鍵設定 簡單易懂的自動化智慧編程,專業人員可以用更少的步驟,根據使用者活動能力輕鬆完成設定,並依據每個用戶需求進行更高級的微調。 ■自訂模式,可因應各種活動,即時微調設定 隨著用戶對智能膝關節的熟悉程度越來越高,可以選擇自訂模式來調整,允許用戶根據自己的喜好選擇阻力,並輕鬆更改關節設定。 例如,若用戶想騎腳踏車,可立即手動調降關節阻力, 符合活動需求,或在工作中須長時間站立,可調升關節阻力,以確保安全,隨時透過應用程式輕鬆更改設定。 ■6個預設場景,輕鬆調節,由你決定! 預設六種常用的生活場景:騎自行車、長時間站立、釣魚等,可輕鬆滿足各種情境的需求。 當執行某個手動場景時,該手動場景將自動進入預設狀態,滿足您即時的日常需要,無需反覆操作和設定。 ■偏好設定,自訂我的最愛 可根據您的日常生活方式和個人喜好,在應用程式中自訂我的最愛設置,可以隨時添加模式並調整參數,從而獲得獨特的個人化體驗。 ■適用於所有 TEHLIN MPK 使用 iPhone 智慧型手機上的 NExT應用程式,可以輕鬆設定德林全系列智能膝關節( TEHLIN MPK )
Screenshots
Verdict
The clearest difference is in-app purchases: TEHLIN NExT at none against Interval Flow's 10. TEHLIN NExT also leads on iOS requirement (15.0 vs 18.6). Interval Flow's advantage is update cadence (fortnightly vs every 23 months). On price, ads 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. Interval Flow sells 10 in-app purchases, starting at $4.99 per 3 months. TEHLIN NExT asks for nothing beyond the download.
Interval Flow ships an update fortnightly, TEHLIN NExT every 23 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.
| Parameter | Interval Flow | TEHLIN NExT |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (168 ratings) — better | — |
| Positive reviews | 48.1% of reviews | — |
| Number of ratings | 168 — better | — |
| Update frequency | Fortnightly — better | Every 23 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Bence Kaposzta | TEH LIN PROSTHETIC & ORTHOPAEDIC INCORPORATED |
Bugs and requests
Interval Flow
Reported bugs
10 issues- Programs deleted after update
- App crashes when adding a program
- Show/Hide Instructions adds time to interval
- App defaults to unused workout
- Cannot permanently skip to end of timed activity
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- Intervals revert to previous settings
- App won't remember order of custom circuit interval programs
- Blank screen after download
- Cannot get program to open
- Cannot see bottom of screen on questionnaire
Requested features
5 requests- Increase repetitions to 20
- Streamline adding intervals
- Make it possible to hide unused workouts
- Add music integration or option
- Provide visual instructions for moves
TEHLIN NExT
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Interval Flow
- 3 Month$4.993 Months
- 1 Month$9.991 Month
- 1 Month, 3 day trial3 Days trial$9.991 Month
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- Annual7 Days trial$14.991 Year
- 1 Year discounted$25.951 Year
- 1 Year, 3 day trial3 Days trial$39.991 Year
- 1 Year$39.991 Year
- 1 Year Intro month1 Month trial$39.991 Year
- Free Lifetime subscriptionFree
- Lifetime$24.99
TEHLIN NExT
No in-app purchases









