SmartHIIT vs Instruct
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartHIIT
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Make room for your next workout with SmartHIIT. YOUR FOUR-WEEK PLAN Choose your experience, time available, weekly frequency and preference for no jumping. SmartHIIT builds a flexible schedule from its offline bodyweight workout library. See your next session on the Home screen and preview the movements before starting. TRY A COMPLETE SESSION FREE Your first plan session is free, with no subscription required. The free interval timer and sample workouts are also available to help you get started. ADJUST TO YOUR DAY Choose a shorter session when you have less time. Rate a completed plan workout as easy, just right or hard. Hard feedback reduces future work intervals while preserving rest breaks. Intensity does not increase automatically. GUIDED WORKOUTS, EVEN OFFLINE Follow exercise instructions and available demonstrations, with work, rest and preparation intervals. The four-week plan uses the built-in library and works without an internet connection. YOUR WORKOUT TOOLS Create custom interval workouts, use voice cues, save routines and review workout history. Pro also includes AI workout generation when online. If AI is unavailable, switch to a beginner bodyweight circuit from the offline library. SMARTHIIT PRO Pro unlocks all four weeks, the workout builder and AI tools. Monthly and annual subscriptions provide the same features. Prices, billing periods and any eligible introductory offer are displayed before purchase. Annual subscriptions are billed for the full year upfront. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel through your Apple Account subscription settings. Your saved history, saved routines and free timer remain available after your subscription ends. Plans and feedback are stored on your device. SmartHIIT does not assess injuries or replace individual professional guidance. Preview movements, warm up at your own pace, and stop if you feel pain or unwell. Privacy: https://smarthiit.dltechdigital.com/privacy/ Terms: https://smarthiit.dltechdigital.com/terms.html
Instruct
This app helps group fitness instructors quickly plan, design, and choreograph classes. It offers an AI-powered bot to generate custom workouts, a smart library for organizing past classes, and automatic timer integration. Spend less time planning and more time teaching.
- On-demand Class Builder Bot
- Smart Library for past classes
- Automatic timer integration
- Review and edit class flow
- Save and reuse workout templates
- Instructor-first interface
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Instruct is an AI-powered interval timer built for group fitness instructors. Plan, program, and run your classes in seconds—without manual setup. Using the most advanced AI, you can now build workouts, time intervals, and organize your templates in seconds. Timing your fitness classes just got easier: Instant Class Programming Turn ideas into fully structured interval timers: Prompt: “30-min HIIT with dumbbells + core” → ready-to-run timer AI Interval Timer Engine Automatically builds work/rest blocks, circuits, and workout flows for HIIT, Cycling, Bootcamp, Boxing, Treadmill, Rowing, TRX, Strength, Pilates, etc. Template to Timer Conversion Already have your class plan? Upload or reuse class templates → instantly converted into timed intervals Real-Time Class Runtime Run your class with beeps, voice cues, and seamless transitions No Timer Setup Required Skip manual interval programming completely. Instruct fills in time, exercise, and description in seconds. Smart Class Library Store, remix, and regenerate workouts from past classes Built for How You Actually Teach Supports HIIT, strength, bootcamp, cycling, conditioning, boxing, pilates, yoga, aquafit, and more. Audio & Compatibility Works alongside your music apps (Spotify, FitRadio, SoundCloud, PowerMusic, Apple Music, etc.) Does not interrupt music playback Choose voice cues, beeps, or silent transitions Instruct is a subscription-based app. There is no free or limited mode—an active subscription is required to use all features, including class builders and timers. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://instructgroupfitness.com/privacy
Screenshots
Verdict
The clearest difference is update cadence: SmartHIIT at every 3 days against Instruct's every 2 months. Instruct's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 18.5). On price, 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. SmartHIIT sells 2 in-app purchases, starting at $4.99 per month and Instruct sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
SmartHIIT ships an update every 3 days, Instruct every 2 months. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.
| Parameter | SmartHIIT | Instruct |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 3 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Subscription |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.5 | 14.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 42 MB |
| Age rating | 4+ | 17+ |
| Developer | Diego Dias de Macedo | Instruct |
In-app purchases
SmartHIIT
- SmartHIIT Pro Monthly7 Days trial$4.991 Month
- SmartHIIT Pro Annual7 Days trial$34.991 Year
Instruct
- Weekly Pro Access (Instruct +)7 Days trial$2.997 Days
- Monthly Pro Access (Instruct +)7 Days trial$7.991 Month
Questions
Is SmartHIIT free?
Is Instruct free?
Do SmartHIIT or Instruct have ads?
Which is updated more often, SmartHIIT or Instruct?
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