Comparison

Solar Calibrator vs PACEEX BMS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • 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
Read full description

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

Solar Calibrator4 screens
PACEEX BMS4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Solar Calibrator ships an update every 11 months, PACEEX BMS every 5 weeks. Both last shipped on November 3, 2026.

Scorecard7 real differences · 3 level
Solar Calibrator versus PACEEX BMS: the parameters behind the verdict, then further details
ParameterSolar CalibratorPACEEX BMS
Price$9.99Free — better
Rating5.0 (2 ratings) — better2.1 (8 ratings)
Positive reviews100.0% of reviews — better31.3% of reviews
Number of ratings28 — better
Update frequencyEvery 11 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size39 MB40 MB
Age rating4+17+
DeveloperFawzi FakhroSHENZHEN PACE ELECTRONICS CO., LTD.

Customer experience

Solar Calibrator

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PACEEX BMS

All ratings7 ratings
Positive28.6%
Neutral14.3%
Negative57.1%
Written reviews16 reviews
Positive31.3%
Neutral18.8%
Negative50.0%

In-app purchases

None

Solar Calibrator

No in-app purchases

None

PACEEX BMS

No in-app purchases

Questions

Is Solar Calibrator free?
Solar Calibrator costs $9.99, with no in-app purchases.
Is PACEEX BMS free?
PACEEX BMS is free to download, with no in-app purchases.
Which has better reviews, Solar Calibrator or PACEEX BMS?
Solar Calibrator is rated higher. Solar Calibrator averages 5.0 out of 5 from 2 ratings, while PACEEX BMS averages 2.1 from 8 ratings.
Do Solar Calibrator or PACEEX BMS have ads?
Neither Solar Calibrator nor PACEEX BMS shows ads.
Which is updated more often, Solar Calibrator or PACEEX BMS?
Solar Calibrator ships an update every 11 months, and PACEEX BMS every 5 weeks. Most recently, Solar Calibrator was updated on November 3, 2026 and PACEEX BMS on November 3, 2026.

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