Comparison

HAIDI vs MAP BMS

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

Head to head

Hai Di

About

HAIDI

Features

Read full description

This App is for the 12V lithium battery (LiFePO4). Get real-time battery information using this app. FEATURES: Works with Bluetooth 4.0 or higher Monitors state of charge, cycles, current, voltage, temperature, capacity, average time to empty and average time to full.

About

MAP BMS

Features

Read full description

1. The uniqueness of the Bluetooth name ensures that the user can accurately connect and manage the corresponding lithium battery pack. 2. The information visualization query management of the battery can be carried out, and the user can query the relevant status of each string of battery packs, and replace or maintain the abnormal battery. 3. Security setting and reading battery protection parameters, users can set parameters and need to enter a password to modify the parameters. 4. Monitor battery failure alarms and display the current battery failures and the number of failures.

Screenshots

HAIDI3 screens

MAP BMS4 screens

Verdict

The call

The clearest difference is update cadence: MAP BMS at every 13 months against HAIDI's every 32 months. MAP BMS also leads on iOS requirement (11.0 vs 14.0). 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

HAIDI ships an update every 32 months, MAP BMS every 13 months. The most recent releases landed on September 29, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 4 level

HAIDI versus MAP BMS: the parameters behind the verdict, then further details
Parameter	HAIDI	MAP BMS
Price	Free	Free
Update frequency	Every 32 months	Every 13 months — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	14.0	11.0 — better
Further details — not scored
Size	11 MB	48 MB
Age rating	17+	4+
Developer	SHENZHEN SMARTEC TECHNOLOGY COMPANY LIMITED	Haidi Energy Tehcnogy Co., Ltd

In-app purchases

None

HAIDI

No in-app purchases

None

MAP BMS

No in-app purchases

Questions

Is HAIDI free?

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

Is MAP BMS free?

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

Do HAIDI or MAP BMS have ads?

Neither HAIDI nor MAP BMS shows ads.

Which is updated more often, HAIDI or MAP BMS?

HAIDI ships an update every 32 months, and MAP BMS every 13 months. Most recently, HAIDI was updated on September 29, 2026 and MAP BMS on October 4, 2026.