# Gravity by Vaonis

> Gravity by Vaonis is the dedicated application for the Hestia instrument.

Canonical page: [https://chrome-stats.com/d/com.vaonis.heliapp](https://chrome-stats.com/d/com.vaonis.heliapp)

## Overview

- **ID:** `com.vaonis.heliapp`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Vaonis
- **Category:** EDUCATION
- **Downloads:** 14,209
- **Rating:** 1.71 / 5 (217 ratings)
- **Version:** 1.9.1
- **Last updated:** 2026-05-04
- **First published:** 2023-12-08
- **Publisher country:** FR
- **Size:** 340 MB
- **Data as of:** 2026-09-17
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.vaonis.heliapp)
- **Website:** [https://vaonis.com/fr](https://vaonis.com/fr)
- **Privacy policy:** [https://vaonis.com/gravity-general-term-of-use](https://vaonis.com/gravity-general-term-of-use)

## Description

"Gravity by Vaonis" is a dedicated app for the Hestia instrument, transforming your smartphone into a powerful telescope. With features like 25x optical zoom, live image stacking, and real-time tracking of Solar and Lunar activities, it enhances your cosmic exploration. The app guides you to photograph galaxies and nebulae while providing educational content about the Universe, making it an intuitive tool for both beginners and enthusiasts.

## Rankings

- #495,605 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_COARSE_LOCATION`
- `android.permission.ACCESS_FINE_LOCATION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.CAMERA`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.vaonis.heliapp.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users praise the app for eclipse/solar/lunar shots and improved images versus an unaided phone, but many report major issues: frequent crashes, Android camera/black‑screen problems, failed deep‑sky stacking and star alignment, stabilization preventing photos, and missing/unfinished features making the app feel like an Android beta.

### Pros

- Produces good results for solar/eclipse and lunar imaging for many users.
- Can improve astrophotography compared with using the phone alone when properly focused and set up.
- Useful for observing bright targets (Sun, Moon, bright stars) and can serve as a handy finder/phone mount for some setups.

### Cons

- Frequent crashes, freezes and app lockups reported by many users.
- Camera access problems on Android (black screen, won’t use camera even with permissions).
- Deep‑sky stacking and star‑tracking/stack alignment often fails or creates duplicate stars and doesn’t save stacks.
- App often refuses to take photos — hangs waiting for “stabilization” or stops time‑lapse after one frame.
- Key advertised features missing or unreliable (compass/location, catalogue/observe workflow); Android app appears behind iPhone and is still effectively in beta.

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.vaonis.heliapp)