Comparison

AQ vs X

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

Head to head
About

AQ

This app tracks fitness activities and analyzes health metrics to help athletes monitor their recovery and control training load. It uses heart rate variability and resting heart rate data to provide personalized insights into physical readiness for exercise.

Highlights
  • Fitness activity tracking
  • Health metrics analysis
  • Recovery monitoring
  • Training load control
  • HRV and RHR data collection
  • Personalized recovery insights
  • Integration with AQ Trainer
Features
Read full description

AQ is a fitness activity tracker designed for athletes and fitness enthusiasts that analyzes health metrics and helps monitor recovery. This modern and scientific approach allows you to control your training load in order to maximize your potential. AQ collects heart rate variability (HRV) data and resting heart rate (RHR) from either Apple Health or wrist-worn sensors like the J Style V4. The app analyzes this information 24/7 using algorithms to provide personalized insights into your recovery level (Recovery) and physical readiness for exercise. The user-friendly interface, easy sensor setup, and intuitive recovery scale ranging from 0-100% make it simple to navigate and understand how well-prepared your body is for training sessions. Additionally, AQ integrates with the trainer’s application AQ Trainer, enabling coaches to track recovery data and manage personal workout diaries. Supported languages: English, Russian

About

X

This app offers specialized training programs for athletes and fitness enthusiasts, focusing on strength, functional fitness, and conditioning. It also provides EMS training, sports recovery, and injury prevention services to enhance performance and endurance.

Highlights
  • Strength training programs
  • Functional fitness
  • Conditioning workouts
  • EMS training
  • Sports recovery
  • Injury prevention
Features
Read full description

Спортивный клуб X-STREAM – силовая, функциональная и кондиционная подготовка спортсменов и любителей, ЕМS- тренинг, спортивное восстановление, профилактика травм. Развития силы, скорости и выносливости, а также мощности и координации.

Screenshots

AQ4 screens
X4 screens

Verdict

The call

AQ and X are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

AQ ships an update monthly, X every 2 months. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

ScorecardNo meaningful differences
AQ versus X: the parameters behind the verdict, then further details
ParameterAQX
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings1 — better—
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size49 MB63 MB
Age rating4+4+
DeveloperItSportPlusSK STRIM, OOO

Customer experience

AQ

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

X

Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AQ

No in-app purchases

None

X

No in-app purchases

Questions

Is AQ free?
AQ is free to download, with no in-app purchases.
Is X free?
X is free to download, with no in-app purchases.
Do AQ or X have ads?
Neither AQ nor X shows ads.
Which is updated more often, AQ or X?
AQ ships an update monthly, and X every 2 months. Most recently, AQ was updated on October 12, 2026 and X on October 3, 2026.

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