Solarpeak vs SQM Mobile
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Solarpeak
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The Apps main feature is to monitor the details of the Solarpeak Lithium batteries. It can monitor multiple batteries at the same time, showing the main data details after series or parallel, showing details of each battery. Re-nameable each battery pack and auto-connect. The Phone via Bluetooth connectivity will monitor the following information from the battery. Battery Capacity Battery Voltage Battery Current (Amps) Battery State of Charge (SOC) Battery Status Individual Cell Voltage Battery Temperature Battery Cycles Please Note: Only one mobile device can connect to the battery at any one time. If you wish to connect a second device to the battery, you must close the program on the first device. This app is only applicable to the Solarpeak Lithium batteries and will not work with any other brand/type of Bluetooth battery monitoring system, nor will any other branded app work with the Solarpeak lithium battery.
SQM Mobile
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Bring all your sky quality measurements together in one place. SQM Mobile is the ideal companion for handheld Sky Quality Meters, automatically synchronizing field measurements with SQM Toolbox on your Mac. It also imports measurements exported from Dark Sky Meter Pro, making it easy to build a single long-term archive of all your observations. KEY FEATURES Field-Ready Data Collection * Quick and easy measurement entry for handheld SQM devices * Manual entry of measurements from Dark Sky Meter * Automatic GPS location recording for each measurement * Timestamp for accurate astronomical correlation * Offline measurement storage โ sync whenever a connection becomes available * Bubble level for accurate zenith pointing * Import measurements exported from Dark Sky Meter Pro Smart Location Features * Automatic GPS coordinate capture * Manual location override (to define local sky-background conditions during site surveys) * Perfect for camping trips, dark-sky site surveys and travel observations Automatic Cloud Sync * Seamlessly sync measurements to SQM Toolbox on your Mac via iCloud * Private, secure storage โ only you can access your measurements * Works anywhere with an internet connection โ no complex setup required * Real-time synchronization across all your Apple devices Quick Analysis * Instant Bortle classification for every measurement * On-device light pollution assessment * Comparison with natural sky-background brightness * Simple graphical display including twilight conditions * Measurement validation and quality indicators * Clean, intuitive interface designed for field use Astronomical Context * Automatic twilight condition detection * Moon phase information for every measurement * Sun elevation calculations Simple and Reliable * Designed for easy use in the dark * Large, clear controls for nighttime operation * No account setup required โ simply use your existing iCloud account Perfect for * Amateur astronomers and citizen scientists carrying out site surveys * Researchers monitoring light pollution * Dark-sky organizations documenting observing conditions * Anyone using handheld SQM instruments or Dark Sky Meter who wants long-term storage, synchronization and analysis of their measurements Requires: iOS 17.0 or later, iCloud account Works with: Unihedron Sky Quality Meter (SQM, SQM-L), Dark Sky Meter Pro imports, and manual entry from Dark Sky Meter. Companion to: SQM Toolbox for macOS (available separately)
Screenshots
Verdict
The clearest difference is update cadence: SQM Mobile at every 4 weeks against Solarpeak's every 41 months. Solarpeak's advantage is iOS requirement (12.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Solarpeak ships an update every 41 months, SQM Mobile every 4 weeks. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.
| Parameter | Solarpeak | SQM Mobile |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 41 months | Every 4 weeks โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod โ better | iPhone |
| Requires iOS | 12.0 โ better | 17.6 |
| Further details โ not scored | ||
| Size | 43 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | E&Jtechnology | GerSpatial |
In-app purchases
Solarpeak
No in-app purchases
SQM Mobile
No in-app purchases









