Smart FM+ vs Bytech
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Car-seeking positioning
- Voltage detection
- FM frequency settings
- Bluetooth connectivity
- Parking location recording
- Map navigation to car
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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.“.
Bytech
Manage and control all your smart home devices from a single application. Organize devices into groups for simultaneous control, schedule automated actions with timers and alarms, and easily grant access to other household members.
- Remote device control
- Group device management
- Automation with timers and alarms
- Device sharing with family
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1. Control all your smart devices remotely. 2. Easily set up groups to control multiple devices. 3. Set timers and alarms to automate functions at certain times. 4. Share devices with other family members.
Screenshots
Verdict
The clearest difference is update cadence: Smart FM+ at every 3 weeks against Bytech's every 6 months. Smart FM+ also leads on review sentiment (50% vs 28%). Bytech's advantage is rating (2.6 vs 2.3) and ratings volume (108 vs 15). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Bytech holds the better App Store score, 2.6 against 2.3. That said, the two scores are not equally well evidenced: Bytech has 108 ratings behind it against 15, so its average is the more settled of the two. Written reviews complicate that: 50% of Smart FM+'s written reviews are positive against 28% of Bytech's, so the app with the better star average is not the one people write more warmly about.
Smart FM+ ships an update every 3 weeks, Bytech every 6 months. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.
| Parameter | Smart FM+ | Bytech |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (15 ratings) | 2.6 (108 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 27.9% of reviews |
| Number of ratings | 15 | 108 — better |
| Update frequency | Every 3 weeks — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 17 MB | 189 MB |
| Age rating | 4+ | 4+ |
| Developer | 桂标 曾 | BYTECH NY, INC. |
Customer experience
Smart FM+
Bytech
Bugs and requests
Smart FM+
Not enough reviews yet to summarise bugs or requests.
Bytech
Reported bugs
23 issues- Light bulb glitches and blinks
- Light turns on randomly
- Poor signal reported
- Scheduling does not work
- Light dims and comes back on periodically
Show 18 moreShow fewer
- Colored bulb only works with blue and green
- App barely connects
- App constantly fails
- Pairing fails repeatedly
- Lightbulb blinks a super bright white intermittently
- Device stops working
- App crashes every time profile picture is updated
- Keeps telling user they are disconnected
- Lights are offline when leaving the house
- Lights will not connect back
- Flashing lights when turning on
- Difficulty connecting after a month
- Randomly flashing lights
- One bulb refuses to change color and is stuck on white
- App demands access to more information than necessary
- Could not find or operate lightbulbs
- Doesn't want to connect to the bulb
- App is small on tablet layout
Requested features
6 requests- Apple Home app compatibility
- Siri integration for control
- Music sync with multiple devices
- Apple widget for quick control
- Android widget for quick control
Show 1 moreShow fewer
- Ability to use music sync with multiple devices
In-app purchases
Smart FM+
No in-app purchases
Bytech
No in-app purchases
