Gravity by Vaonis vs LingvaSfero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gravity by Vaonis
Transform your smartphone into a smart telescope to explore the cosmos. Capture stunning images of galaxies, nebulae, and star clusters with advanced image stacking. Observe the Sun and Moon with dedicated modes and educational content.
- Smartphone as smart telescope
- 25x optical zoom
- Live image stacking
- Sun and Moon observation
- Deep sky object photography
- Landscape and wildlife photography
- Educational cosmic content
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Gravity by Vaonis is the dedicated application for the Hestia instrument, transforming your smartphone into a smart telescope! Intuitive and user-friendly, this mobile application enables you to explore the Cosmos with ease. Track the activities of the Sun and the Moon, and immortalize your journey through the Universe by photographing galaxies, nebulae, and star clusters at your fingertips. CAMERA MODE Boost the power of your smartphone to achieve a 25x optical zoom on your mobile's camera, allowing you to observe the wonders of the Universe up close. IMAGE PROCESSING Make the invisible visible with Hestia's live image stacking technology. Choose your target and let the magic happen. Gravity by Vaonis enhances your observation experience using exclusive image processing algorithms. It intelligently combines and aligns multiple short-exposure images captured by your smartphone to create a single high-quality photograph. SPACE CENTER Monitor the real-time activity of the Moon and the Sun. LANDSCAPE MODE With Gravity by Vaonis, your surroundings become a new playground. Observe and photograph distant landscapes or even wild animals in their natural habitat. SOLAR AND LUNAR MODE Easily and safely observe the closest star to Earth during the day using Hestia's solar filter. Track the sun's activity and witness the evolution of solar spots and faculae. Track the sun's activity by examining the variations on its visible surface. Once night falls, admire the details of the lunar craters and track the different phases of the Moon. DEEP SKY MODE Observe the brightest objects in the deep sky. The Gravity by Vaonis application will guide you step by step to help you take your own photos of galaxies, nebulae, and star clusters. EDUCATIONAL CONTENT Gravity by Vaonis offers a comprehensive educational journey, providing you with the opportunity to explore the mysteries of the Universe.
LingvaSfero
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Master new languages naturally with LingvaSfero, the ultimate content discovery hub built for Input-Based Language Learning and Comprehensible Input. Stop searching endlessly for material that matches your skills. LingvaSfero aggregates top-tier audio, video, and text media tailored precisely to your target language, current proficiency level, and personal interests. Discover Content You Love YouTube Channels: Watch engaging videos with content suited for beginners through advanced speakers. Podcasts via Spotify: Listen to native speakers on topics ranging from culture to story-driven content. RSS Feeds & Articles: Read real-world blogs, news, and text at a pace that fits your reading ability. Enjoy extensive, curated content libraries for: French, English, Spanish, Russian, Italian, German, Ukrainian (Additional languages constantly expanding!) Learn at Your Own Level Whether you are a complete beginner seeking accessible, slow-paced input or an intermediate/advanced learner looking to immerse yourself in native media, LingvaSfero filters out the noise so you can focus entirely on acquiring your target language. Download LingvaSfero today and elevate your language learning journey through authentic content! Terms of Use (EULA) By using this app, you agree to the standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Gravity by Vaonis at none against LingvaSfero's shown. Gravity by Vaonis also leads on iOS requirement (16.0 vs 18.5). LingvaSfero's advantage is update cadence (daily vs every 2 months). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Gravity by Vaonis ships an update every 2 months, LingvaSfero daily. The most recent releases landed on October 20, 2026 and October 26, 2026 respectively.
| Parameter | Gravity by Vaonis | LingvaSfero |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (50 ratings) — better | — |
| Positive reviews | 47.7% of reviews | — |
| Number of ratings | 50 — better | — |
| Update frequency | Every 2 months | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 331 MB | 59 MB |
| Age rating | 4+ | 17+ |
| Developer | Vaonis | Alexis Aneas |
Bugs and requests
Gravity by Vaonis
Reported bugs
11 issues- App doesn't locate anything
- QR code not working
- Black screen when trying to find objects
- Latest update broke deep sky tracking on iOS
- App is slow and doesn't track planets/stars
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- Can't get camera aligned
- App requires full photo library access
- Deep sky guidance broken
- App shows incorrect object location
- App goes black when switching to moon on Android
- App auto-crops pictures to low quality
Requested features
11 requests- Add possibility to use iPhone telephoto lens
- Add possibility to trigger photo with Apple Watch
- Add constellation guide
- Allow remote shutter control
- Add a 2-second timer for photos
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- Add Timelapse and video functions
- Improve photo quality and resolution
- Add re-alignment shortcut
- Add tracking software for planets
- Add constellation option
- Provide better instructions for locating objects
LingvaSfero
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Gravity by Vaonis
No in-app purchases
LingvaSfero
No in-app purchases
Questions
Is Gravity by Vaonis free?
Is LingvaSfero free?
Do Gravity by Vaonis or LingvaSfero have ads?
Which is updated more often, Gravity by Vaonis or LingvaSfero?
Other comparisons
