Comparison

TommaTech vs Octopus BMS Lite

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

Head to head

BMS management

About

TommaTech

Monitor your inverter's real-time performance, including power generation and consumption. Analyze operational data at a minute level to ensure optimal inverter function.

Highlights

Real-time inverter data viewing
Minute-level statistical analysis
Online status tracking
Power generation monitoring
Power consumption tracking

Features

Read full description

Tommatech app can view the data reported by the inverter in real time, conduct minute level statistical analysis on whether the inverter is online, power generation, power consumption and on-line power, and master the operation of the inverter in time.

About

Octopus BMS Lite

Read full description

Use the mobile phone Bluetooth to connect to the BMS to achieve real-time monitoring and management of battery information.

Screenshots

TommaTech2 screens

Octopus BMS Lite3 screens

Verdict

The call

The clearest difference is update cadence: TommaTech at every 6 weeks against Octopus BMS Lite's every 12 months. On price, 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

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

UpkeepUpdate frequency

TommaTech ships an update every 6 weeks, Octopus BMS Lite every 12 months. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

Scorecard1 real difference · 7 level

TommaTech versus Octopus BMS Lite: the parameters behind the verdict, then further details
Parameter	TommaTech	Octopus BMS Lite
Price	Free	Free
Positive reviews	12.5% of reviews	—
Update frequency	Every 6 weeks — better	Every 12 months
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	11.0 — better	12.0
Further details — not scored
Size	68 MB	32 MB
Age rating	4+	17+
Developer	TommaTech GmbH	Shanghai Xinzhiheng Electronic Technology Co., Ltd.

In-app purchases

None

TommaTech

No in-app purchases

None

Octopus BMS Lite

No in-app purchases

Questions

Is TommaTech free?

TommaTech is free to download, with no in-app purchases.

Is Octopus BMS Lite free?

Octopus BMS Lite is free to download, with no in-app purchases.

Do TommaTech or Octopus BMS Lite have ads?

Neither TommaTech nor Octopus BMS Lite shows ads.

Which is updated more often, TommaTech or Octopus BMS Lite?

TommaTech ships an update every 6 weeks, and Octopus BMS Lite every 12 months. Most recently, TommaTech was updated on September 17, 2026 and Octopus BMS Lite on September 9, 2026.