Comparison

Heat 1 vs IntervalPro

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

Head to head
About

Heat 1

Engage in functional fitness competitions by predicting athlete performance. Participate in leagues and thrilling game types like Top 10 and Shot Caller to earn points and test your sports strategy.

Highlights
  • Follow functional fitness competitions
  • Participate in leagues
  • Top 10 athlete prediction game
  • Shot Caller pick-per-event game
  • Earn points based on predictions
  • Real-time engagement
Read full description

Immerse yourself in functional fitness competitions with Heat 1! Our app lets you not only follow the action but actively participate in the excitement. Join leagues in Heat 1 and engage in thrilling game types: Top 10: Select the top 10 male and female athletes you believe will dominate the competition. Earn points based on the accuracy of your predictions and see how your choices stack up against the actual results. Shot Caller: Step into the shoes of a strategist with this pick-per-event game. For each event, choose 5 athletes and accumulate points based on their performance in the event. Don't just spectate, be a part of the action! Download our app now with interactive gameplay and real-time engagement.

About

IntervalPro

Features
Read full description

IntervalPro - Your Personal Interval Timer IntervalPro is your all-in-one interval training companion for HIIT, Tabata, EMOM, AMRAP, and now Running. Whether you are crushing a 20-second Tabata round or building up to your first 5K with walk-and-jog intervals, IntervalPro keeps you on track with smart timers, audio cues, and cloud backup to keep your data safe across all your devices. Transform your workouts with IntervalPro, the ultimate high-intensity interval training companion. Design custom HIIT workouts, stay motivated with audio cues, and track your progress over time. KEY FEATURES: • Custom Workout Builder - Create unlimited HIIT workouts tailored to your fitness level • Smart Timer - Visual and audio cues keep you focused during work and rest intervals • 50+ Pre-built Templates - From beginner to advanced, including classic Tabata • Progress Tracking - Monitor your workout streak and completion rates • Workout History - Review past sessions and track improvements • Multilingual Support - Available in English, Spanish, and Portuguese FREE FEATURES: • Create up to 3 custom workouts • Access to all pre-built templates • Full timer functionality with audio cues • 30-day workout history • Basic statistics PREMIUM FEATURES ($3.99/month or $29.99/year): • Unlimited custom workouts • Complete workout history • Advanced statistics and insights • Ad-free experience • Priority support Perfect for: • HIIT enthusiasts • Tabata training • Circuit training • Cardio workouts • Home fitness • Gym workouts Whether you're a beginner starting your fitness journey or an advanced athlete looking to optimize your training, IntervalPro adapts to your needs. Our intelligent timer handles all the counting so you can focus on pushing your limits. Download IntervalPro today and take your fitness to the next level! --- SUBSCRIPTION INFORMATION: • Monthly: $3.99/month • Yearly: $29.99/year (Save 38%) • Payment charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period • Account charged for renewal within 24 hours prior to the end of the current period • Subscriptions managed by user; auto-renewal may be turned off in Account Settings after purchase • No cancellation of current subscription allowed during active subscription period Terms of Use: https://intervalpro-website.onrender.com/terms.html

Screenshots

Heat 13 screens
IntervalPro4 screens

Verdict

The call

The clearest difference is in-app purchases: Heat 1 at none against IntervalPro's 3. Heat 1 also leads on ads (none vs shown). IntervalPro's advantage is device support (3 vs 1). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. IntervalPro sells 3 in-app purchases, starting at $1.99 per month. Heat 1 asks for nothing beyond the download.

UpkeepUpdate frequency

Heat 1 ships an update every 5 days, IntervalPro every 3 days. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
Heat 1 versus IntervalPro: the parameters behind the verdict, then further details
ParameterHeat 1IntervalPro
PriceFreeFree
Rating4.6 (47 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings47 — better—
Update frequencyEvery 5 daysEvery 3 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size30 MB69 MB
Age rating4+12+
DeveloperAdam AmbrosiusTwinSoftware

In-app purchases

None

Heat 1

No in-app purchases

3 purchases

IntervalPro

Subscriptions2
  • Premium Monthly$1.991 Month
  • Premium Yearly$9.991 Year
One-time1
  • IntervalPro Lifetime$19.99

Questions

Is Heat 1 free?
Heat 1 is free to download, with no in-app purchases.
Is IntervalPro free?
IntervalPro is free to download, with in-app purchases available.
Do Heat 1 or IntervalPro have ads?
IntervalPro shows ads; Heat 1 does not.
Which is updated more often, Heat 1 or IntervalPro?
Heat 1 ships an update every 5 days, and IntervalPro every 3 days. Most recently, Heat 1 was updated on October 4, 2026 and IntervalPro on October 9, 2026.

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