Comparison

iTHRVE chakra vs Opti Calm

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

Head to head
About

iTHRVE chakra

This app visualizes heart rate data as chakra and sacred geometry graphs. It translates heartbeats per minute into musical keys and displays chakra resonance based on your heart's signature. Requires compatible heart rate sensors.

Highlights
  • Heart rate data visualization
  • Chakra resonance graphs
  • Sacred geometry displays
  • Real-time heart activity monitoring
  • Musical key signature calculation
  • Bluetooth sensor integration
Features
Read full description

itHRVe chakras app is designed to receive data from your heart rate and translates them into graphs related to chakras and sacred geometry. itHRVe chakras collects and displays in real-time informations on heart activity (through Polar H7 or H10 chest strap sensors). We convert the actual Heartbeats per minute as displayed in the HRV to calculate a musical fundamental key signature of your heart. The chakras graph displays the resonance of your chakras according to the key signature of your heart rate. This app only provides the ability to receive and display hardware data (HRV sensors) via Bluetooth, This app is not a medical device, is not intended for medical use, and does not provide diagnostic features. The hardware (HRV sensors ) via Bluetooth involved in this application is used only in a jurisdiction that complies with applicable laws and regulations and is not intended as a substitute for medical advice or diagnostic results. Users of the hardware are solely responsible for ensuring compliance with relevant laws, regulations and standards.

About

Opti Calm

Train your brain to reach optimal performance patterns with this app. It uses a compatible external brain-sensing accessory to provide visual and audio feedback, guiding you to a state of calm for meditation or high-pressure activities. Improve efficiency and recall your best performance brain patterns.

Highlights
  • Brain activity sensing integration
  • Visual feedback (score, video, brain representation)
  • Audio feedback (music volume)
  • Calm brain training algorithm
  • Performance optimization
  • Meditation and sports training modes
Features
Read full description

**This application requires a subscription with Opti Brain to use. **This application also requires an external accessory that senses your brain activity to use. Compatible brain sensing hardware includes: -Muse Headband, -Smith Lowdown Focus Glasses powered by Muse The brain sensing hardware will connect your brain activity to this app and help you BETTER YOUR BEST™ by training your brain to reach its optimum performance pattern! Visit MyOptiBrain.com and purchase a subscription to learn to reach your optimum potential today! The Opti Calm app is produced by Opti Brain, a company dedicated to performance optimization. Opti Calm features our Calm brain training algorithm. Calm (previously know as Serenity in Opti Train) teaches the brain to decrease in activity. This algorithm is popular for daily meditation because less brain activity is reflected by a clear mind. In addition, this algorithm is popular to train with in high-pressure, performance sports because it can help you create more efficiency in your brain. For example, in a repetitive task such as putting a ball or throwing a pitch your goal while practicing can be to decrease your brain activity which increases the efficiency of your brain. Your goal would be to perform the same motion (with a high success rate) with less thought. Opti Calm offers visual feedback to guide your brain to an optimized brain pattern in the form of a percentage score, a playing/pausing video, or a color-changing brain representation. When the video is playing, when your index is higher, when the brain is completely colored you have found your Calm. Visual feedback is ideal to use while sitting still when you are thinking meditatively about an upcoming performance. Opti Calm also offers audio feedback in the form of music increasing or decreasing in volume to guide your brain. When the music is the most quiet you have found your Calm. It is ideally used while in motion to BETTER YOUR BEST™. For example, let your favorite music (chosen from your personal iTunes library) guide your brain while putting a golf ball, shooting at a target, or throwing a pitch. The more you train with Opti Calm, the easier it will be to identify your best performance brain pattern. Then take your Opti Calm best pattern to your performance. If you don't remember, your brain will! Opti Calm's sister app Opti Brain allows you to view the brain maps from your trainings. When you save a training it becomes available to be mapped in Opti Brain. To see how much Calm was present in your training, select the brain icon featuring the same aqua color theme as Opti Calm on the setup screen in Opti Brain.

Screenshots

iTHRVE chakra4 screens
Opti Calm4 screens

Verdict

The call

The clearest difference is price: Opti Calm at Free against iTHRVE chakra's $4.99. Opti Calm also leads on update cadence (every 2 months vs every 10 months) and iOS requirement (9.0 vs 12.0). iTHRVE chakra's advantage is rating (3.8 vs 3.0) and ratings volume (12 vs 2). On ads, in-app purchases 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

Opti Calm is free to download; iTHRVE chakra costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

iTHRVE chakra holds the better App Store score, 3.8 against 3.0. That said, the two scores are not equally well evidenced: iTHRVE chakra has 12 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

iTHRVE chakra ships an update every 10 months, Opti Calm every 2 months. The most recent releases landed on September 7, 2026 and September 10, 2026 respectively.

Scorecard6 real differences · 4 level
iTHRVE chakra versus Opti Calm: the parameters behind the verdict, then further details
ParameteriTHRVE chakraOpti Calm
Price$4.99Free — better
Rating3.8 (12 ratings) — better3.0 (2 ratings)
Positive reviews50.0% of reviews—
Number of ratings12 — better2
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid — betterSubscription
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.09.0 — better
Further details — not scored
Size31 MB280 MB
Age rating9+4+
DeveloperPatrick BotteOptiherence

Customer experience

iTHRVE chakra

All ratings12 ratings
Positive58.3%
Neutral25.0%
Negative16.7%
Written reviews6 reviews
Positive50.0%
Neutral16.7%
Negative33.3%

Opti Calm

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

iTHRVE chakra

No in-app purchases

None

Opti Calm

No in-app purchases

Questions

Is iTHRVE chakra free?
iTHRVE chakra costs $4.99, with no in-app purchases.
Is Opti Calm free?
Opti Calm is free to download, with no in-app purchases.
Which has better reviews, iTHRVE chakra or Opti Calm?
iTHRVE chakra is rated higher. iTHRVE chakra averages 3.8 out of 5 from 12 ratings, while Opti Calm averages 3.0 from 2 ratings.
Do iTHRVE chakra or Opti Calm have ads?
Neither iTHRVE chakra nor Opti Calm shows ads.
Which is updated more often, iTHRVE chakra or Opti Calm?
iTHRVE chakra ships an update every 10 months, and Opti Calm every 2 months. Most recently, iTHRVE chakra was updated on September 7, 2026 and Opti Calm on September 10, 2026.

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