SkyAtlas vs Nexis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SkyAtlas
Explore the night sky with a digital atlas and control your telescope mount. Plan astrophotography compositions with simulated camera fields of view and track celestial objects in real-time. Features one-click GoTo and mode switching for an enhanced stargazing experience.
- Digital sky atlas exploration
- Telescope mount control (ZWO ASI)
- Simulated camera field of view
- Real-time telescope pointing display
- One-click GoTo functionality
- Object tracking
- EQ and AltAz mode switching
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SkyAtlas is the control app for ZWO AM series mounts, with Bluetooth support for ZWO EAF. Use your phone to control the mount and focuser with ease. The built-in star map includes thousands of stars and deep-sky objects. "Best Tonight" recommends the best targets in your current sky. Tap GoTo, and the mount automatically tracks your chosen object. Preview your telescope's aim and frame shots right on your screen—what you see is where it points. Switch between equatorial and alt-az modes with one tap. SkyAtlas, explore the night sky, simplified.
Nexis
Control and manage your iFi Internet of Things devices remotely. Activate network and IoT functionalities after purchasing compatible hardware. View diagnostic information and ensure seamless operation of your connected devices.
- Device activation
- Network setup
- Remote control
- Diagnostic information
- IoT functionality management
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The Nexis app is an app developed for Internet of Things (IoT) devices. After purchasing the relevant devices, you can use this app to activate the network and IoT functionalities of the devices. Additionally, you can use this app to manage and remotely control devices, as well as view diagnostic information of the devices.
Screenshots
Verdict
The clearest difference is rating: SkyAtlas at 2.4 against Nexis's 1.4. SkyAtlas also leads on review sentiment (40% vs 10%) and iOS requirement (11.0 vs 15.0). On price, ratings volume, 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. Neither carries in-app purchases, so what you see is what you pay.
SkyAtlas holds the better App Store score, 2.4 against 1.4. Both are backed by a comparable volume of ratings — 17 and 13 respectively. Written reviews point the same way: 40% of SkyAtlas's written reviews are positive against 10% of Nexis's.
Both ship on a similar rhythm, roughly monthly. Both last shipped on November 3, 2026.
| Parameter | SkyAtlas | Nexis |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (17 ratings) — better | 1.4 (13 ratings) |
| Positive reviews | 40.0% of reviews — better | 10.0% of reviews |
| Number of ratings | 17 — better | 13 |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 911 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | SuZhou ZWO Co., Ltd | Abbingdon Limited |
Customer experience
SkyAtlas
Nexis
In-app purchases
SkyAtlas
No in-app purchases
Nexis
No in-app purchases
