Comparison

DT Smart Battery vs Smart FM+

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

Head to head
About

DT Smart Battery

Monitor your smart battery pack's performance and status remotely via Bluetooth. View real-time data like voltage, current, temperature, and remaining power. Receive alerts for critical conditions and set custom reminders.

Highlights
  • Real-time battery status monitoring
  • Voltage, current, and temperature readings
  • Remaining power percentage
  • Protection information alerts
  • Individual cell voltage monitoring
  • Customizable power and temperature reminders
Features
Read full description

The smart battery pack has a built-in remote Bluetooth module, and the APP can read the following information by connecting the APP with the mobile phone through Bluetooth: 1. Working status of battery pack: charging point, discharge, working voltage, current, temperature, residual power, etc.; 2. Overvoltage, undervoltage, overcurrent, overtemperature and other protection information; 3. The number of strings of cells, the voltage and release of each cell; 4. Hardware short circuit and delay, equalization opening voltage; 5. Set the threshold of the remaining power and temperature reminder, and receive a reminder below the value of the fixed threshold;

About

Smart FM+

This app helps you locate your parked car using your phone's location and Bluetooth connectivity. It also monitors your car's battery voltage and provides historical data. Simply plug in the transmitter, connect via Bluetooth, and set your car radio to a matching FM frequency.

Highlights
  • Car-seeking positioning
  • Voltage detection
  • FM frequency settings
  • Bluetooth connectivity
  • Parking location recording
  • Map navigation to car
Read full description

Smart FM + is an application based on Bluetooth and mobile location Usage:Plug smart FM+ transmitter into the vehicle's DC 12V or 24V cigarette lighter socket. After the car is started, the transmitter will be automatically turned on. The indicator light flashes blue to enter the Bluetooth pairing mode.Open the Smart FM+ APP and click “Connect” to connect the device via Bluetooth. Once connected, the icon “Connected” appears. Major function: 1、FM Settings:Turn on the car radio, set the frequency between 88.1-107.9 MHZ, plug in the device, adjust the frequency to the same frequency you set on the radio. 2、Voltage Detection:Voltage Detection:\nThis product will automatically detect the battery voltage of your car and the voltage of USB1 and USB2 outputs. The log icon below can check the voltage history of the car. Click the battery voltage to check the battery voltage status of the car. Green/Yellow/Orange icons are to help you determine battery status. 3、Car-seeking positioning:Find My Car:\nWhen your stop the engine, the product will automatically record the location and time of your current parking. When you don't remember the parking position of your car, open the app and follow the direction of the arrow. You can also open the map navigation to help you find the last recorded parking position. When you are close to the car, you will be prompted “The car is close, please unlock your car.“.

Screenshots

DT Smart Battery4 screens
Smart FM+4 screens

Verdict

The call

The clearest difference is review sentiment: Smart FM+ at 50% against DT Smart Battery's 0%. Smart FM+ also leads on rating (2.3 vs 1.5) and update cadence (every 3 weeks vs every 3 months). On price, ratings volume, ads and in-app purchases 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

Smart FM+ holds the better App Store score, 2.3 against 1.5. Both are backed by a comparable volume of ratings — 8 and 15 respectively. Written reviews point the same way: 0% of DT Smart Battery's written reviews are positive against 50% of Smart FM+'s.

UpkeepUpdate frequency

DT Smart Battery ships an update every 3 months, Smart FM+ every 3 weeks. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
DT Smart Battery versus Smart FM+: the parameters behind the verdict, then further details
ParameterDT Smart BatterySmart FM+
PriceFreeFree
Rating1.5 (8 ratings)2.3 (15 ratings) — better
Positive reviews0.0% of reviews50.0% of reviews — better
Number of ratings815 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS11.0 — better12.0
Further details — not scored
Size28 MB17 MB
Age rating4+4+
Developer应刚 郑桂标 曾

Customer experience

DT Smart Battery

All ratings7 ratings
Positive14.3%
Neutral0.0%
Negative85.7%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Smart FM+

All ratings15 ratings
Positive26.7%
Neutral6.7%
Negative66.7%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

DT Smart Battery

No in-app purchases

None

Smart FM+

No in-app purchases

Questions

Is DT Smart Battery free?
DT Smart Battery is free to download, with no in-app purchases.
Is Smart FM+ free?
Smart FM+ is free to download, with no in-app purchases.
Which has better reviews, DT Smart Battery or Smart FM+?
Smart FM+ is rated higher. DT Smart Battery averages 1.5 out of 5 from 8 ratings, while Smart FM+ averages 2.3 from 15 ratings.
Do DT Smart Battery or Smart FM+ have ads?
Neither DT Smart Battery nor Smart FM+ shows ads.
Which is updated more often, DT Smart Battery or Smart FM+?
DT Smart Battery ships an update every 3 months, and Smart FM+ every 3 weeks. Most recently, DT Smart Battery was updated on October 24, 2026 and Smart FM+ on October 9, 2026.

Other comparisons