Comparison

Interval Rush vs CrossFit ENG

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

Head to head
About

Interval Rush

Features
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Unlock your fastest running potential with a training app built for progress, precision, and performance. This app combines custom interval programming and detailed performance analytics to help you train with purpose and run stronger, whether you're preparing for your first 5K or chasing a new personal best. Train With Control Build fully customized interval workouts Set time, distance, pace targets, rest, and repeats Choose from proven workout templates for speed, endurance, thresholds, and recovery Personalized Running Guidance Create a training plan based on your goal Workouts matched to your level, pace, and target distance Train with structure and consistency Run Anywhere. Track Everything. Open run mode for free running Live pace, distance, cadence, and heart-rate tracking Audio and haptic guidance to keep you on target Apple Watch Native Start and complete runs from your wrist Train without your phone Sync sessions for detailed review on your phone Analyze. Learn. Improve. Interval breakdowns and detailed pacing Heart-rate zones and training load Splits and performance trends over time Built for Every Runner Whether you are a beginner building endurance, a competitive runner chasing speed, or someone who wants smarter training structure, this app gives you the tools to reach the next level. Train with intention. Run with confidence. Improve with every session.

About

CrossFit ENG

Features
Read full description

For members of CrossFit ENG to reserve their place in a class, sign up for gym events, and general account management like updating headshots and credit card on file.

Screenshots

Interval Rush4 screens
CrossFit ENG4 screens

Verdict

The call

Interval Rush and CrossFit ENG are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Interval Rush versus CrossFit ENG: the parameters behind the verdict, then further details
ParameterInterval RushCrossFit ENG
PriceFreeFree
Update frequencyโ€”Every 5 weeks
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod
Requires iOS15.615 โ€” better
Further details โ€” not scored
Size40 MB94 MB
Age rating12+4+
DeveloperMartijn Robert LinstraCape Coral Fitness LLC

In-app purchases

None

Interval Rush

No in-app purchases

None

CrossFit ENG

No in-app purchases

Questions

Is Interval Rush free?
Interval Rush is free to download, with no in-app purchases.
Is CrossFit ENG free?
CrossFit ENG is free to download, with no in-app purchases.
Do Interval Rush or CrossFit ENG have ads?
Both Interval Rush and CrossFit ENG show ads.

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