Comparison

Qomolander BMS vs Olelon Connect

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

Head to head
About

Qomolander BMS

This app provides real-time monitoring of battery status, including voltage, current, and temperature. It connects via Bluetooth to display battery information, diagnose issues, and manage settings to extend battery life and enhance stability.

Highlights
  • Real-time battery parameter display (voltage, current, SOC, SOH, temp)
  • Individual cell voltage monitoring
  • Cell balance and voltage difference display
  • Alarm status for various battery issues
  • Battery parameter modification
  • Battery program upgrades
  • Charging and discharging control
Features
Read full description

QOMOLANDER intelligent battery management system can real-time monitor battery status, collect, store and process the information during battery operation. With a Bluetooth connection, it can exchange information with external devices to display battery information and diagnose battery issues. This technology can also extend the lifetime and enhance the stability of the battery. 1. Real-time display of voltage, current ,SOC ,SOH, temperature, other parameters of battery. 2. Real-time display the voltage of battery cells. 3. Real-time display the maximum and minimum voltage of the cell, the voltage difference and the cell balance. 4. Real-time display of over-voltage, under-voltage, over-current, over -temperature, low-temperature, short circuit and other alarm status. 5. Modifying battery parameters. 6. Upgrading battery program. 7. Charging and discharging switch on or off. I hope QOMOLANDER can help you to better understand the convenience of lithium batteries operation.

About

Olelon Connect

Monitor your battery pack's real-time status, including charge level, voltage, and temperature. This app allows for one-button firmware upgrades and provides detailed historical fault information for troubleshooting.

Highlights
  • Real-time battery status monitoring
  • Operational voltage and current display
  • Temperature and remaining battery level
  • One-button Bluetooth firmware upgrades
  • Detailed current fault information
  • Historical fault data viewing
Features
Read full description

The intelligent battery pack has a built-in remote Bluetooth module. It connects to a mobile application via Bluetooth. The application can read the following information: 1. The operational status of the battery pack: charging, discharging, operating voltage, current, temperature, remaining battery level, etc. 2. Bluetooth connection allows for one-button upgrade of device versions. 3. It can display detailed fault information about the current operation of the device. 4. You can view historical fault information about the previous operation of the device. About Olelon Olelon Energy USA Company Limited is devoted to build the best lithium batteries for people all over the world. Through advanced and sophisticated R&D, we have designed all of our batteries to provide years of trouble free service. Only the highest quality of LiFePO4 cells from the best manufacturer in the world will be used on our batteries. Every Olelon battery contains cells that are meticulously sorted and matched for both capacity and resistance. Trust Olelon battery for all of your deep cycle and trouble free battery needs.

Screenshots

Qomolander BMS4 screens
Olelon Connect4 screens

Verdict

The call

The clearest difference is rating: Qomolander BMS at 5.0 against Olelon Connect's 3.0. Qomolander BMS also leads on iOS requirement (13.0 vs 15.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Qomolander BMS holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Qomolander BMS ships an update monthly, Olelon Connect every 4 weeks. The most recent releases landed on June 11, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 8 level
Qomolander BMS versus Olelon Connect: the parameters behind the verdict, then further details
ParameterQomolander BMSOlelon Connect
PriceFreeFree
Rating5.0 (1 ratings) — better3.0 (2 ratings)
Positive reviews—0.0% of reviews
Number of ratings12 — better
Update frequencyMonthlyEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size46 MB26 MB
Age rating17+4+
DeveloperShenzhen Qomolander Technology Co., LTDOLELON ENERGY COMPANY LIMITED

Customer experience

Qomolander BMS

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Olelon Connect

All ratings2 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

Qomolander BMS

No in-app purchases

None

Olelon Connect

No in-app purchases

Questions

Is Qomolander BMS free?
Qomolander BMS is free to download, with no in-app purchases.
Is Olelon Connect free?
Olelon Connect is free to download, with no in-app purchases.
Which has better reviews, Qomolander BMS or Olelon Connect?
Qomolander BMS is rated higher. Qomolander BMS averages 5.0 out of 5 from 1 ratings, while Olelon Connect averages 3.0 from 2 ratings.
Do Qomolander BMS or Olelon Connect have ads?
Neither Qomolander BMS nor Olelon Connect shows ads.
Which is updated more often, Qomolander BMS or Olelon Connect?
Qomolander BMS ships an update monthly, and Olelon Connect every 4 weeks. Most recently, Qomolander BMS was updated on June 11, 2026 and Olelon Connect on September 24, 2026.

Other comparisons