Comparison

Strong Tabata and HIIT timer vs RunIntensity

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

Head to head
About

Strong Tabata and HIIT timer

Features
Read full description

Strong Timer is a free, simple and clean timer app for Tabata, HIIT and other workouts. - Clean and minimal interface with a user-friendly design that is quick to glance at a distance - Supports multiple training profiles, and automatically selects the last used - Provides audible feedback for workouts - Native IOS app, so everything is quick and smooth - Workouts are automatically saved to Apple Health if you choose it - No ads and does not collect any information

About

RunIntensity

This app provides advanced running analytics, calculating training load with a multi-factor model that considers intensity, terrain, and environmental stress. It offers daily readiness scores and personalized workout plans to optimize training and recovery.

Highlights
  • Stress-Adjusted Miles (SAM) calculation
  • Daily readiness score
  • Readiness-first "Today" home screen
  • Training planner with periodization
  • Social features to train with friends
  • AI coaching options
  • Shoe mileage tracking
Features
Read full description

Your 40 miles this week hit like 55. RunIntensity is the running app that knows the difference. Distance and pace don't tell you how hard a week really was. A hilly run in the heat or a tempo on tired legs costs more than the mileage suggests. RunIntensity scores every run in Stress-Adjusted Miles (SAM), a five-factor training load model built from heart rate, terrain, surface, cumulative fatigue and conditions. Your weekly mileage becomes a weekly training load you can plan around. TWO NUMBERS, ONE ANSWER EVERY MORNING RunIntensity reads what your watch already writes to Apple Health and scores two things separately, 0–100: • Recovery — heart, nervous system and sleep. HRV, sleep and resting heart rate against your own baseline. Snaps back overnight. • Freshness — muscles, tendons and joints. How much of your recent training your legs have absorbed. Drops with a hard session, climbs back over hours or days. Then one call: Ready, Steady or Recover. Ready only when both are high; Steady when one system is still catching up; Recover when rest is the workout. Recovered isn't the same as healed — this is the app that knows when you're overdoing it. KNOW WHAT TO DO TODAY Your verdict, today's workout, your weekly training load budget and a one-tap start. Widgets, Siri ("What's my readiness?") and Control Center keep it one glance away. FREE FOR EVERY RUNNER • Stress-Adjusted Miles — the real cost of every run • Recovery, Freshness and a daily Ready / Steady / Recover verdict • Weekly SAM budget with mid-week pacing tips • 26-week training load charts • Training planner with periodized phases and race milestones • Personal records and trophies • Shoe mileage tracking • Body soreness tracker — spot patterns before you overdo it • The peer-reviewed research behind every number WORKS WITH ANY WATCH Apple Watch, Garmin, COROS, Polar and more — any run that syncs to Apple Health flows in automatically, duplicates merged. No manual logging. APPLE WATCH APP • Workouts from your wrist with live heart rate, pace and distance • Race Pace interval timer with custom segments and repeats • Complications and Watch widgets with Recovery, Freshness and today's verdict • Live Activity on the Dynamic Island during workouts FRIENDS & THE BOARD — FREE See how your friends are training: readiness, training load, workouts, reactions, weekly leaderboards, head-to-head challenges and streaks. COACH BRADY — YOUR AI RUNNING COACH ($19.99/year, 7-day free trial) An AI running coach that has actually read your training. Every answer is grounded in your readiness, training load and workout history. Coach Brady plans workouts onto your calendar, sends weekly reviews and tracks your goals. Includes the web coach dashboard. COACH MODE — FOR COACHES ($39.99/year) Everything in Coach Brady plus unlimited athletes and groups, side-by-side readiness and load comparisons, assigned plans and push notifications when athletes sync. Coach Brady and Coach Mode require Sign in with Apple and an auto-renewable subscription. PRIVACY FIRST Core calculations happen on your device. RunIntensity reads Apple Health but never writes to it, and syncs only what you choose to share. No ads. No analytics SDKs. No tracking. A training tool, not a medical device. REQUIREMENTS iOS 17.0 or later; watchOS 10.0 or later for the Watch app (optional). Sign in with Apple for Friends, Coach Brady and Coach Mode. SUBSCRIPTION TERMS Coach Brady and Coach Mode are auto-renewable yearly subscriptions charged to your Apple ID at confirmation and renewed automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel in Settings > Apple ID > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.zerodi.net/runintensity-privacy

Screenshots

Strong Tabata and HIIT timer4 screens
RunIntensity4 screens

Verdict

The call

The clearest difference is in-app purchases: Strong Tabata and HIIT timer at none against RunIntensity's 2. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RunIntensity sells 2 in-app purchases, starting at $19.99 per year. Strong Tabata and HIIT timer asks for nothing beyond the download.

UpkeepUpdate frequency

Strong Tabata and HIIT timer ships an update weekly, RunIntensity every 2 weeks. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 9 level
Strong Tabata and HIIT timer versus RunIntensity: the parameters behind the verdict, then further details
ParameterStrong Tabata and HIIT timerRunIntensity
PriceFreeFree
Rating—5.0 (10 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—10 — better
Update frequencyWeekly — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS17.617.0 — better
Further details — not scored
Size1 MB15 MB
Age rating4+4+
DeveloperChrsitian StærkZero Di, LLC

In-app purchases

None

Strong Tabata and HIIT timer

No in-app purchases

2 purchases

RunIntensity

Subscriptions2
  • Coach Brady — Yearly7 Days trial$19.991 Year
  • Coach Mode — Yearly7 Days trial$39.991 Year

Questions

Is Strong Tabata and HIIT timer free?
Strong Tabata and HIIT timer is free to download, with no in-app purchases.
Is RunIntensity free?
RunIntensity is free to download, with in-app purchases available.
Do Strong Tabata and HIIT timer or RunIntensity have ads?
Neither Strong Tabata and HIIT timer nor RunIntensity shows ads.
Which is updated more often, Strong Tabata and HIIT timer or RunIntensity?
Strong Tabata and HIIT timer ships an update weekly, and RunIntensity every 2 weeks. Most recently, Strong Tabata and HIIT timer was updated on September 30, 2026 and RunIntensity on October 7, 2026.

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