iTHRVE chakra vs Opti Calm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Heart rate data visualization
- Chakra resonance graphs
- Sacred geometry displays
- Real-time heart activity monitoring
- Musical key signature calculation
- Bluetooth sensor integration
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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.
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.
- 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
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**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
Verdict
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
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.
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.
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.
| Parameter | iTHRVE chakra | Opti Calm |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 3.8 (12 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 12 — better | 2 |
| Update frequency | Every 10 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid — better | Subscription |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 280 MB |
| Age rating | 9+ | 4+ |
| Developer | Patrick Botte | Optiherence |
Customer experience
iTHRVE chakra
Opti Calm
In-app purchases
iTHRVE chakra
No in-app purchases
Opti Calm
No in-app purchases









