FXC Control vs SkyAtlas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FXC Control
Control and adjust settings for your Freedom X/XC inverter or inverter/charger. Requires a compatible remote control panel with Bluetooth. Consult user guides for setup and operation.
- Change settings
- Control parameters
- Bluetooth communication
- Inverter/charger management
- System configuration
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This application allows you to change settings and control available parameters on your Freedom X/XC inverter or inverter/charger. Please note it requires the Freedom X/XC remote control panel with the support of Bluetooth communication. Please read the Freedom X/XC inverter/charger and FX Remote Panel user guides before configuring and operating the Freedom X/XC system. Ensure that your iOS is updated to the latest version.
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.
Screenshots
Verdict
The clearest difference is review sentiment: SkyAtlas at 40% against FXC Control's 14%. SkyAtlas also leads on rating (2.4 vs 2.2) and iOS requirement (11.0 vs 13.0). 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 2.2. Both are backed by a comparable volume of ratings — 24 and 17 respectively. Written reviews point the same way: 14% of FXC Control's written reviews are positive against 40% of SkyAtlas's.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on July 19, 2026 and August 25, 2026 respectively.
| Parameter | FXC Control | SkyAtlas |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (24 ratings) | 2.4 (17 ratings) — better |
| Positive reviews | 14.3% of reviews | 40.0% of reviews — better |
| Number of ratings | 24 — better | 17 |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 911 MB |
| Age rating | 4+ | 4+ |
| Developer | Xantrex Canada ULC | SuZhou ZWO Co., Ltd |
Customer experience
FXC Control
SkyAtlas
In-app purchases
FXC Control
No in-app purchases
SkyAtlas
No in-app purchases
