Nautics vs GravitX
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Nautics
This game serves as a psychometric assessment tool for evaluating personality traits. It's designed for recruitment and learning & development, requiring internet access for data download and result submission.
- Psychometric assessment
- Personality evaluation
- Recruitment tool
- L&D purposes
- Scientific development
- Reliability and validity standards
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Nautics is a game designed and developed by Talent Litmus to be used as a psychometric assessment. Nautics is ideal for evaluating personality characteristics of individuals during recruitment and L&D purposes. Make sure you have internet access while playing the game. Internet access is needed to download a few game details and also to submit results. Nautics has been developed through an intensive and thorough scientific process. It conforms to accepted reliability and validity standards for psychometric assessments. For more details, visit www.talentlitmus.com Thank you, The Talent Litmus Team
GravitX
Experience a unique mobile game controlled entirely by your head movements. Navigate a ball through challenging levels, avoiding obstacles and collecting checkpoints. This innovative title offers a fun workout for your eyes and neck, and is accessible for players with mobility impairments.
- Head-tracking controls
- Unique gameplay concept
- Obstacle avoidance challenges
- Checkpoint progression
- Eye and neck workout
- Accessible for mobility impairments
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It’s not often that we come across an entirely new concept in the world of mobile games, but GravitX absolutely qualifies. The gameplay sees you guiding a ball around on a series of surfaces, all the while making sure to avoiding obstacles and pitfalls while passing through a succession of checkpoints. So far so familiar. The twist is in the input method. GravitX is the first game we’ve come across that you control entirely with your head. Using face-tracking technology, the game turns your uppermost extremity into a giant joystick that you have to rock and swivel to guide the ball to its goal. It’s pretty wild. GravitX effectively makes you dance, albeit only from the neck up. To accompany your moves developer Improvis’s top-notch sound engineers have created a seamless, utterly satisfying audio-visual experience. The gameplay is fun, the design is slick and tasteful, and GravitX is unlike anything we’ve played before. GravitX has tangible health benefits, too. The technological age is terrible for our eyes, forcing us to flit between phones, computer monitors, tablets, and other kinds of screens. A ten minute session with GravitX gives your eyes a real workout, while additionally improving concentration and peripheral vision. At least, that’s the claim of Mao Shing Ni, L.Ac, D.O.M, PhD. And who are we to argue with all those letters? GravitX provides a good workout for your neck, too. Finnish researchers in 2003 found that isometric strength training decreases pain and disability in women with chronic neck pain over an extended period. The spine is designed to be mobile. And, of course, GravitX is a godsend for anybody with the kind of mobility issues or limb impairments that make traditional video games impossible to play.
Screenshots
Verdict
The clearest difference is rating: GravitX at 5.0 against Nautics's 3.0. GravitX also leads on ratings volume (4 vs 1). Nautics's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 18.2). On price, update cadence, ads 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
Both are free to download. GravitX sells 1 one-off in-app purchase. Nautics asks for nothing beyond the download.
GravitX holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.
Nautics ships an update monthly, GravitX every 3 weeks. The most recent releases landed on October 29, 2026 and October 18, 2026 respectively.
| Parameter | Nautics | GravitX |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 1 | 4 — 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 |
| Requires iOS | 11.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 337 MB | 594 MB |
| Age rating | 4+ | 4+ |
| Developer | Stairwell Ventures Private Limited | Improvis LLC |
Customer experience
Nautics
GravitX
In-app purchases
Nautics
No in-app purchases
GravitX
- "Metal" world$0.99









