Solar Calibrator vs PACEEX BMS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solar Calibrator
This professional toolkit helps PV installers precisely calibrate panel angles, size battery banks and wire gauges, and generate PDF quotes. It includes tools for obstruction analysis and load auditing, all accessible offline.
- Solar compass and tilt angle calibration
- Battery and inverter sizing
- Wire gauge calculation
- Load audit and quote builder
- PV array and string sizing
- Obstruction analysis
- Offline functionality
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The Professional Solar Installer's Toolkit Solar Calibrator is the all-in-one pocket utility for PV installers, engineers, and advanced DIYers. Calibrate panel angles with precision, size battery banks, calculate wire gauges, and generate professional PDF quotes—all without internet access. CORE TOOLS: Solar Compass & Tilt: Align panels to True North/South and find the optimal tilt angle for Summer or Winter efficiency. Uses advanced sensor damping for steady, professional readings. Battery & Inverter Sizing: Calculate exact off-grid storage needs based on load. Supports Lithium (LiFePO4) and Lead-Acid profiles. Wire Gauge Calculator: Prevent voltage drop and fire hazards. Calculates safe wire thickness (AWG/mm²) based on voltage, current, and run length. Load Audit & Quote Builder: Build a complete appliance load profile and generate instant PDF estimates to share with clients. PV Array & String Sizing: Determine the maximum number of panels per string based on local temperature lows (Voc limits) to protect your inverter. Obstruction Analysis: Calculate shadow cast distance to ensure your array stays shade-free during winter solstice. NEW IN V2.0: Field Mode UI: High-contrast Dark Mode for visibility in bright sunlight. PDF Reports: Export detailed calculation reports and client quotes. Smart Location: Auto-detects latitude for precise sun-hour estimations.
PACEEX BMS
Monitor and manage your device's battery health remotely or locally. View real-time and historical data, set up custom alerts for critical battery conditions, and manage your connected devices with ease.
- Real-time battery data monitoring
- Historical data logging and analysis
- Customizable warning and alarm settings
- Local Bluetooth and remote Wi-Fi connectivity
- Device management and sharing
- Battery health status and diagnostics
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PACEEX Technology has developed an app specifically for customers, which is convenient for customers to bind their own devices anytime, anywhere, view battery health status, and record, diagnose and warn the real-time status of the battery,It is a good helper for customers in operating and maintaining their devices. 【Parameter settings】 Preset warning values for over-charge, over-discharge , over-current, and over-temperature,When the battery status reaches the preset warning value, the system will send out an alarm signal to remind users to pay attention to the battery's status and performance. 【Real-time data】 Summary data: including battery current, voltage, number of cells, cycle times, SOC, SOH, temperature and other parameters; Cell data: including independent voltage, independent current, cycle times, SOC, SOH, temperature and other parameters of the cell; Voltage temperature: including the number of cells, cell voltage, cell temperature and other parameters; Status data: including protection, indication, control, fault, battery balance, alarm and other status. 【Historical data】 Record the alarm state, protection state, fault occurrence state and development process of the battery history,which can help the users to understand the state and performance of the battery. 【Connection method】 Local control: Through Bluetooth communication, no need to log in with an account, directly search for nearby Bluetooth signals, one-to-one connection, ready to use; Remote control: through WIFI communication,need to register an account to log in, the APP and the device will automatically perform network distribution operations, and bind the account and device. 【My device】 Forgot password: reset password through email; Edit device: Long press the device item, the edit menu will pop up at the bottom, you can modify the device nickname or delete the device; Share device: Long press the device item, the device administrator who first configures the network and binds the account, can generate a QR code for the device for other users to scan the code to add. 【About us】 If you have any suggestions or encounter any problems during the use of the APP, please feel free to contact us at any time through our website: Official website:https://www.paceic.com/
Screenshots
Verdict
The clearest difference is review sentiment: Solar Calibrator at 100% against PACEEX BMS's 31%. Solar Calibrator also leads on rating (5.0 vs 2.1). PACEEX BMS's advantage is price (Free vs $9.99) and update cadence (every 5 weeks vs every 11 months). On ads, in-app purchases and device support 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
PACEEX BMS is free to download; Solar Calibrator costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Solar Calibrator holds the better App Store score, 5.0 against 2.1. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews point the same way: 100% of Solar Calibrator's written reviews are positive against 31% of PACEEX BMS's.
Solar Calibrator ships an update every 11 months, PACEEX BMS every 5 weeks. Both last shipped on November 3, 2026.
| Parameter | Solar Calibrator | PACEEX BMS |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | 2.1 (8 ratings) |
| Positive reviews | 100.0% of reviews — better | 31.3% of reviews |
| Number of ratings | 2 | 8 — better |
| Update frequency | Every 11 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 39 MB | 40 MB |
| Age rating | 4+ | 17+ |
| Developer | Fawzi Fakhro | SHENZHEN PACE ELECTRONICS CO., LTD. |
Customer experience
Solar Calibrator
PACEEX BMS
In-app purchases
Solar Calibrator
No in-app purchases
PACEEX BMS
No in-app purchases
Questions
Is Solar Calibrator free?
Is PACEEX BMS free?
Which has better reviews, Solar Calibrator or PACEEX BMS?
Do Solar Calibrator or PACEEX BMS have ads?
Which is updated more often, Solar Calibrator or PACEEX BMS?
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