JARVISH vs Variometer+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JARVISH
This app connects to smart helmets, allowing users to manage recorded videos and photos. It enables voice control for helmet functions like calls, music, and camera operation, with options for live streaming.
- Copy videos and photos from smart helmet
- Upload media to the cloud
- Voice control for helmet functions
- Receive phone calls and play music
- Control camera and stream videos live
- Voice navigation support
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JARVISH App is an app specially designed for JARVISH smart helmets. Just download the app from Apple Store and install it on your smartphone. Use the app to copy videos and photos from your smart helmet and upload them to the cloud. JARVISH smart helmets feature voice control, Wi-Fi and Bluetooth links, and varied powerful functions including receiving phone calls, playing music, adjusting volume on built-in devices, controlling the camera, and streaming videos recorded while riding on Facebook live to share them with the whole world. App features ◉ Voice-controlled and tailored to riding in all conditions. ◉ No need to reach for your phone while riding. ◉ Operation not affected either during nighttime riding or rainy day riding. ◉ Supporting Wi-Fi and Bluetooth connections and links to the cloud, adding new functions to the smart helmets. ◉ Ready availability of newest functions, which can be obtained simply through App upgrades. ◉ Strong voice recognition capability, voice reception free of ambient noise disturbance, and voice commands easily recognizable even on noisy streets. ◉ Voice navigation, on-line maps support, and Bluetooth-enabled transmission of navigation commands to smart helmet headphones. ◉ Fine volume adjustment and voice transmission effects reaching Japan’s SG safety standards. ◉ Clear voice and sound transmission and zero disturbance to the rider’s auditory recognition of surrounding traffic. Features of newest software upgrades: ◉ Allowing users to stream videos on Facebook live while riding and share real-time footages with Facebook friends. ◉ Brand-new simple-to-use operation interface, user-friendly menu design, and greater ease of use. About JARVISH JARVISH is an all-round company specializing in the design and manufacturing of motorcycle smart helmets as well as the development of software. Its research and development personnel are capable of integrating software and hardware as required for system development, optimizing application configuration and component placement, assisting cloud and system operations, and designing human machine interface and graphic user interface. Its cross-disciplinary operations encompass system software, electronic hardware, materials, institutions, micro-photoelectric technology, and patent portfolio management. About JARVISH smart helmets JARVISH smart helmets are top-of-the-line adjustable products featuring highest-level safety specifications and built-in smart mobile devices. They have passed strict safety checks and are certified as such. The built-in devices include a high-definition wide-angle sports dashboard camera, an aerospace-grade black box, motion sensors, a noise-free voice and headphone system, wireless links, a military-grade anti-explosion lithium ceramic battery, and an awesome auto-sensing taillight (for certain specific models only). Their application could be further expanded with software upgrades and peripheral service extension. With a smart helmet, the rider can activate the built-in camera to record everything that happens throughout the riding process. Videos and photos can be downloaded from the helmet-mounted camera to the App through Wi-Fi links. The helmet supports Bluetooth protocols. After getting the smart helmet connected, the rider can use voice commands to control video recording, phone call receiving, volume adjustment, and playing of music. All these operations can proceed in a hands-off manner. With the support of a navigation App and on-line maps, the rider can receive through Bluetooth links navigation voice commands via the headphones in the helmet. Devices 1 2K water-resistant wide-angle camera 2 Smart voice control 2.1 Receiving phone calls 2.2 Music playing control 2.3 Volume control 2.4 Video recording control APP 1. Connecting devices 2. Downloading videos 3. On-line map navigation 4. Video recording control
Variometer+
This app provides a highly responsive variometer for paragliding, hang gliding, and aviation. It offers customizable beeps, haptic feedback, and ground speed/altitude displays, with an independent Apple Watch app for full functionality on your wrist.
- Highly responsive variometer algorithm
- Audible beeps and haptic feedback
- Ground speed and altitude display
- Sink alarm
- Customizable settings and sounds
- Independent Apple Watch app
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Variometer+ is the most responsive variometer for your iPhone or/and Apple Watch. Works for all activities (paragliding, hang gliding, aviation, ...). • Super reactive / responsive thanks to a very advanced algorithm • Beeps like a real variometer (or haptic feedback on your wrist) • Shows ground speed & altitude (sea level & relative to take-off) • Sink alarm • Entirely configurable (settings sync with Apple Watch through iCloud) • Choose among several gauges • Change units (m/s, ft/min, ...) • Customize beeps tresholds • Customize gauge max & min values based on your activity • Customize the sound of your vario (frequency, cadence, ...) for maximum comfort • Independent Apple Watch app (sound, haptic feedback, ...) → everything on your wrist • ... and more Use at your own risk. The creator cannot be held responsible for any issue that might arise. Common sense should prevail. Fly safe! This app respects your privacy and does not collect any data. Feedback is welcome and appreciated, you can contact me from within the app :-). Please be nice with me ;-). About the algorithm: This variometer is not an ordinary app. To provide this level of responsiveness, a very advanced mathematical technique is being used. This is called ‘Sensor fusion’. It uses data from multiple sensors of your devices, and combines them to increase accuracy and responsiveness. This has been developed in collaboration with researchers from the university of UCLouvain in Belgium. Because of the efficiency, hence complexity, of the algorithm, a great amount of computational power is required. This is why, based on the tests, the advanced level of responsiveness is only available on recent devices. The app still works - but is less responsive - on older devices though. Enjoy! --------- The terms of use & privacy policy can be found here: https://variometer.app/terms-and-privacy.html
Screenshots
Verdict
The clearest difference is review sentiment: Variometer+ at 89% against JARVISH's 41%. Variometer+ also leads on ratings volume (27 vs 2) and device support (4 vs 2). JARVISH's advantage is in-app purchases (none vs 3) and rating (5.0 vs 4.8). On price, update cadence and ads 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
Both are free to download. Variometer+ sells 3 in-app purchases, starting at $6.99 per month. JARVISH asks for nothing beyond the download.
JARVISH holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Variometer+ has 27 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 41% of JARVISH's written reviews are positive against 89% of Variometer+'s, so the app with the better star average is not the one people write more warmly about.
JARVISH ships an update monthly, Variometer+ every 3 weeks. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.
| Parameter | JARVISH | Variometer+ |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.8 (27 ratings) |
| Positive reviews | 40.9% of reviews | 89.5% of reviews — better |
| Number of ratings | 2 | 27 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 9.0 — better | 15.4 |
| Further details — not scored | ||
| Size | 253 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | GuoGuang Qiu | iSolid apps |
Customer experience
JARVISH
Variometer+
In-app purchases
JARVISH
No in-app purchases
Variometer+
- Vario PRO Monthly$6.991 Month
- Vario PRO Yearly3 Days trial$14.991 Year
- Vario PRO Lifetime$49.99









