Comparison

SmartHIIT vs Instruct

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SmartHIIT

Features
Read full description

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

About

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.

Highlights
  • 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
Features
Read full description

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

SmartHIIT4 screens
Instruct4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
SmartHIIT versus Instruct: the parameters behind the verdict, then further details
ParameterSmartHIITInstruct
PriceFreeFree
Rating—5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 3 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
Monetization—Subscription
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.514.0 — better
Further details — not scored
Size25 MB42 MB
Age rating4+17+
DeveloperDiego Dias de MacedoInstruct

In-app purchases

2 purchases

SmartHIIT

Subscriptions2
  • SmartHIIT Pro Monthly7 Days trial$4.991 Month
  • SmartHIIT Pro Annual7 Days trial$34.991 Year
2 purchases

Instruct

Subscriptions2
  • Weekly Pro Access (Instruct +)7 Days trial$2.997 Days
  • Monthly Pro Access (Instruct +)7 Days trial$7.991 Month

Questions

Is SmartHIIT free?
SmartHIIT is free to download, with in-app purchases available.
Is Instruct free?
Instruct is free to download, with in-app purchases available.
Do SmartHIIT or Instruct have ads?
Neither SmartHIIT nor Instruct shows ads.
Which is updated more often, SmartHIIT or Instruct?
SmartHIIT ships an update every 3 days, and Instruct every 2 months. Most recently, SmartHIIT was updated on October 2, 2026 and Instruct on September 30, 2026.

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