# EZ PUSH-TO

> Sky map app for visual astronomy, assisting with celestial object identification. (iPhone/iPad app by Sun Pao.)

- Source: https://appshunter.io/ios/app/ez-push-to/id1500340494 (this page in markdown: same URL + `.md`)
- Developer: [Sun Pao](https://appshunter.io/developer/1252197882)
- Category: Education, Entertainment
- Price: Free
- Rating: 4.00/5 from 4 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 54 MB
- Languages: English
- Released: 2020-02-29
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ez-push-to/id1500340494/reviews.md

## What is EZ PUSH?

EZ PUSH TO is a sky map app running precisely when the Bluetooth encoders on GSO Dobsonian is connected. Without encoders, the app still works relying on iPhone's compass and gravity sensor. 

EZ PUSH TO is designed for visual astronomy. The star map assists you browsing the real sky. The map is concise, but completed with Messier/NGC /Herschel catalogue, double and binary stars, comets and asteroids, and magnitude 10.5 stars (270K stars) for general purpose.

EZ PUSH TO features lots amazing interface, such as lazy "roaming" in the deep sky, and "Messier marathon" to enhance your stargazing skills.

It absolutely brings you and telescope freely to reach the real deep sky at your backyard, or in your family camping.

## Key features

- Real-time sky mapping
- Celestial object identification
- Deep sky catalog integration
- Stargazing skill enhancement tools
- Bluetooth encoder compatibility

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/ez-push-to/id1500340494/reviews.md

### 4/5 — Looks promising

*2022-04-26, version 3*

Just got my kit a couple of days ago, and am trying to test it. Having a problem with Bluetooth on IOS 15.4.1. I get ‘“Romer Optics” is not supported’ when I try to pair Bluetooth in Bluetooth settings.

Just heard back from the developer. He said ensure that bluetooth is turned on, but do the pairing IN THE APP, not in iPhone bluetooth settings

I already verified that the hardware is good using my Android tablet and the Android app.

### 5/5 — Excellent addition to your GSO Dobsonian telescope

*2022-01-11, version 3*

I have been using the Romer Optics Ez-Pushto encoders and this app since 2019. I have two GSO Dobsonian telescopes both fitted with the Ez-Pushto encoders. Once I figured out how to use the App, i have come to appreciate how well it works. I Initially align with Polaris, then add 1 or 2 alignment stars/targets. This takes less than a minute and usually enough to start using the App. The App also lets you add additional alignment stars (one for each zone) which improves the accuracy of the system. The App also lets you correct any alignment errors later in the session when you are pushing to a selected target, thereby allowing continual improvement of accuracy. 

It is much easier to setup than my other motorized mounts (Celestron AGST, Skywatcher HEQ5, Meade LX200). Alignment with these motorized mounts typically take me longer than 10 minutes compared to 1 minute with the EZ-Pushto. Note that the EZ-Pushto works only with GSO manufactured Dobsonian telescopes, so comparison with the other mounts I mentioned is not an apples to apples comparison. 

Overall great product, and it has helped me locate targets much easier and faster than Star hopping.

### 1/5 — Ne marche plus

*2021-05-08, version 3*

Après 2 ans d’utilisation chaotique ne marche plus l’application ne s’allume plus malgré le téléchargement de la nouvelle version

### 2/5 — Good product

*2021-01-17, version 3*

It would be very helpful and easily accomplished if you have a fluent English speaker rewrite your manuals- installation, software use, etc. They are confusing and at times not understandable.

### 5/5 — Fabuleux

*2020-11-25, version 3*

Cela fait plus de deux ans que j’utilise Ez Push To sur mon Dobson de conception personnelle et je viens de l’installer sur un Skywatcher Stargate 458 mm, que du bonheur !!! Si votre installation est propre et le niveau bien réglé vous trouvez tous les objets du ciel sans problèmes. J’ai pu trouver cette année 4 comètes en rentrant les coordonnées dans l’application. Pour 100$ c’est fabuleux.
Denis

### 5/5 — One if the most incredible apps ever devised

*2020-08-02, version 1.0*

This app is probably the most sophisticated and intelligently written app in the app universe. It rivals and compliments Sky Safari as a very powerful astronomy tool. I use EZ Push-To to locate and identify astro objects as a guide for my goto telescopes and as a planner which tells me what objects are visible over the tree lines of my property. Excellent app you must appreciate. I figured out the interface by trial and error. I wish there were better instructions on its use and functions. Stay with it and once you figure it out, it’s just awesome.

## Frequently asked questions about EZ PUSH

### What is EZ PUSH-TO?

EZ PUSH-TO is a sky map application designed for visual astronomy. It helps users identify stars and celestial objects in the real sky, functioning with or without telescope encoders.

### What kind of celestial objects can EZ PUSH-TO identify?

EZ PUSH-TO can identify objects from the Messier, NGC, and Herschel catalogs, as well as double and binary stars, comets, asteroids, and up to magnitude 10.5 stars.

### Does EZ PUSH-TO work offline?

Yes, EZ PUSH-TO works without encoders by relying on the iPhone's compass and gravity sensor, suggesting offline functionality for basic star mapping.

### What are the 'roaming' and 'Messier marathon' features in EZ PUSH-TO?

'Roaming' allows for easy navigation through the deep sky map, while 'Messier marathon' is a feature designed to help users improve their stargazing skills by identifying Messier objects.

### What devices does EZ PUSH-TO support?

EZ PUSH-TO is supported on iPhone and iPod devices, as indicated by its platform compatibility.

### How often is EZ PUSH-TO updated?

The app was last updated on April 6, 2024, with version 4 being the latest release, indicating recent development and maintenance.

### What is the age rating for EZ PUSH-TO?

EZ PUSH-TO has an age rating of 4+, making it suitable for a wide range of users interested in learning about the night sky.

### Does EZ PUSH-TO have ads?

EZ PUSH-TO does not contain advertisements, as indicated by the 'hasAds' flag being false.

## Version history (last 4 releases)

### 4 — 2024-04-06

1. Fix the algorithm for the periodic error correction (PEC) in azimuth encoder
2. Add more visible bright star to align the system quickly in the beginning
3. Integrate Ez Push-To / Ez Goto 
4. More options of BT devices

### 3 — 2020-09-23

Add the roaming option in the settings to show more star in the sky map

### 2 — 2020-08-15

Update the newest comet data base and correct the planets position calculation.

### 1.0 — 2020-02-29

No release notes.

## Apps similar to EZ PUSH

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| [Daily Astronomy Explorer](https://appshunter.io/ios/app/daily-astronomy-explorer/id6461419168) | — | Free | Education |
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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*