SSTrainer vs MLAstro Hub
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SSTrainer
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小智慧,多功能训练器,SSTrainer
MLAstro Hub
Control your OnStep telescope mount wirelessly from your phone. Manage mount status, navigate celestial catalogs, and perform alignment and configuration tasks without a laptop.
- Live mount status monitoring
- Directional control with adjustable slew rates
- One-tap home and park functionality
- Access to celestial object catalogs for Go-To slewing
- Guided alignment workflow
- Flexible Wi-Fi network setup
- Configuration and tuning options
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MLAstro is the wireless remote control companion for OnStep-based telescope mounts connected through SmartWebServer. Whether you're in your backyard or at a dark-sky site, MLAstro gives you everything you need right from your phone — no laptop, no cables, no hassle. KEY FEATURES ● Live Mount Status See your mount's current state at a glance: tracking mode, guide rates, slew status, and connection health — all updated in real time. ● Full Directional Control A responsive on-screen directional pad lets you nudge the mount in any direction. Adjust slew rates, start or stop tracking, and send mount utility commands with a tap. ● Home & Park Safely home or park your mount at the end of a session with dedicated one-tap controls. ● Go-To Catalogs Browse built-in catalogs and send your mount directly to any object: - Messier catalog (110 objects) - Caldwell catalog (109 objects) - Bright Stars list - J2000 coordinate entry for any custom target ● Target Detail & Slew View object details before slewing, confirm the target, and watch your mount move — all from one clean screen. ● Alignment Workflow Step through the alignment process guided by the app, so your mount points accurately every time. ● Flexible Network Setup Supports both Access Point and Station (router) Wi-Fi modes. Save your controller's IP address and port so you're always one tap from connecting. ● Configuration & Tuning Adjust meridian flip settings, slew limits, slew rates, tracking mode, time & location, and controller / axis parameters — all without leaving the app. ● Light & Dark Theme Choose light, dark, or follow your system preference. REQUIREMENTS - An OnStep-based telescope mount controller - SmartWebServer (or compatible TCP bridge) running on port 9998 (configurable) - iOS 15 or later - Same local Wi-Fi network as the mount MLAstro is built for amateur astronomers who want a clean, capable mobile controller for their OnStep rig. No account required. No cloud. Just your phone and your mount.
Screenshots
Verdict
The clearest difference is device support: MLAstro Hub at 3 against SSTrainer's —. SSTrainer's advantage is iOS requirement (13.0 vs 15.0). On price and in-app purchases 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.
| Parameter | SSTrainer | MLAstro Hub |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 5 days |
| Ads | — | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | — | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 31 MB | 86 MB |
| Age rating | 17+ | 4+ |
| Developer | 东莞市斯波阿斯体育用品科技有限公司 | To Ngoc Khanh |
In-app purchases
SSTrainer
No in-app purchases
MLAstro Hub
No in-app purchases





