RC Timing vs ISD Go
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RC Timing
This app tracks lap times for radio-control and slot cars using your device's camera. It's ideal for practice sessions when a formal timing system isn't available, allowing you to manage multiple drivers, cars, and tracks. Features include voice synthesis, simultaneous tracking of up to 10 cars, and performance analysis through graphs.
- Lap time tracking for RC and slot cars
- Camera-based car color tracking
- Manage drivers, cars, and tracks
- Voice synthesizer for lap announcements
- Track up to 10 cars simultaneously
- Store and analyze lap times with graphs
- Export lap times to CSV
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This App has been created by an RC Cars and slot cars hobbyist (myself) that had a need: I wanted to know my lap times when practicing in my local club but the expensive Timing System was not installed. So I created RC Timing. RC Timing is an App that tracks lap times for radio-control and slot cars. It can be used in both indoor and outdoor tracks. This App is not intended to replace your club’s timing system. It is thought to help you in situations where you want to practice and the local timing system is not available. It uses the video camera for tracking the car colors and it offers an easy and intuitive configuration. - RadioControl and Slot Racing cars - Manage different drivers/cars/tracks - No human interaction is required - No external systems are required - Training mode/Race mode - Voice synthesizer (you can connect your iOS device to a Bluetooth speaker) - Track up to 10 cars simultaneously - Store all registered lap times - Show basic statistics - Designed to not drain your battery - Both Practice and Race sessions supported - Detailed guide explaining how to use it - Export lap times to CSV - Offers graphs for better performance analysis - Support for car classes - Pitstops
ISD Go
Control and manage wireless smart devices with a user-friendly interface. Connect and operate devices via Bluetooth, and receive automatic firmware updates when new versions are available.
- Connect BLE smart devices
- Wireless device operation
- Automatic firmware detection
- Firmware upgrades
- User-friendly interface
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ISD GO is an APP specially used to connect Aster wireless smart devices, so as to provide users with a more convenient and user-friendly user interface to operate Aster's smart devices. We have added the following features in ISD GO: 1. Bind Esther BLE (Bluetooth Low Energy) smart device Users can bind Aster Bluetooth smart devices with their mobile phones, so that they can wirelessly access and operate the devices through their mobile phones. 2. Firmware upgrade When a new device firmware is released on the official website of Esther, ISD GO will automatically detect it, so as to realize the firmware upgrade of the smart device.
Screenshots
Verdict
The clearest difference is review sentiment: RC Timing at 67% against ISD Go's 19%. RC Timing also leads on rating (3.4 vs 1.8). ISD Go's advantage is in-app purchases (none vs 5) and update cadence (weekly vs every 8 months). On price, ratings volume, ads 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
Both are free to download. RC Timing sells 5 one-off in-app purchases. ISD Go asks for nothing beyond the download.
RC Timing holds the better App Store score, 3.4 against 1.8. Both are backed by a comparable volume of ratings — 33 and 31 respectively. Written reviews point the same way: 67% of RC Timing's written reviews are positive against 19% of ISD Go's.
RC Timing ships an update every 8 months, ISD Go weekly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | RC Timing | ISD Go |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (33 ratings) — better | 1.8 (31 ratings) |
| Positive reviews | 66.7% of reviews — better | 18.5% of reviews |
| Number of ratings | 33 — better | 31 |
| Update frequency | Every 8 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 48 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Oscar Martin | 深圳艾斯特创新科技有限公司 |
Customer experience
RC Timing
ISD Go
Bugs and requests
RC Timing
Not enough reviews yet to summarise bugs or requests.
ISD Go
Reported bugs
56 issues- App crashes during updates
- Device not recognized by app
- Abnormal network connection for firmware server
- App not updated for current iOS
- Bluetooth not reconnecting
Show 51 moreShow fewer
- Inaccurate current readings
- Device disconnected during update
- No device detected
- App corrupts N series chargers
- Batteries showing incorrect discharge status
- Unable to bind to FD-200
- Bluetooth will not connect
- Computer doesn't recognize charger
- App fails to download firmware
- Drag brake not engaging
- ESC not staying connected via Bluetooth
- Timeout messages
- CM1620: inaccurate battery/power display, cut-off info
- A8 Air not seen via USB or Bluetooth
- Unstable firmware update connection
- FD200: impossible to discharge below 3.0V, limited current options, preset conflicts
- N16 recognized as N8
- App shows 'Waiting for device'
- Bluetooth drops all the time
- Does not work on iOS 16.5
- Shows wrong device (N8 instead of 16N)
- Firmware version mismatch
- K4 locked on 'UPDATE' screen
- FD-200 disconnects during discharge
- FD-200 keeps discharging regardless of parameters
- App disconnects and won't reconnect
- FD200 Bluetooth disconnects all the time
- CM1620: unstable Bluetooth, incorrect charge level display
- App does not stay connected via Bluetooth
- ESC70: times out, loses connection, resets to factory settings
- FD-200 drops Bluetooth signal
- Bluetooth dropping constantly
- App loses connection to FD200
- H605 Air error code
- New version doesn't work with H605
- App crashes constantly
- App does not remember cut off voltage
- App loses binding to device
- Fails to connect to FD-200
- Difficulty re-establishing BT connection
- K4 won't connect
- Cannot connect to FD-200
- Bluetooth connection problem
- App doesn't find FD-200
- Bluetooth connection with iPad not working
- Cannot connect with iPad or Android
- H605 Air overvolts battery packs
- Incapable of balance charge
- Font size too big on iPhone SE
- Cell voltage not displayed correctly after update
- Manual calibration doesn't work
Requested features
13 requests- Update app for current iOS
- Fix firmware update issues
- Improve Bluetooth connection stability
- Allow discharging to lower voltages (e.g., 0.0V)
- Increase discharge current options
Show 8 moreShow fewer
- Fix preset conflicts
- Improve drag brake settings
- Add dark mode
- Add balance charge option
- Improve font size for smaller screens
- Allow landscape mode on iPad
- Add charge volume in %
- Add alarm for charged battery
In-app purchases
RC Timing
- Unlimited Car Classes$1.99
- Pitstop Feature$1.99
- Unlimited Tracks$2.99
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- Unlimited Drivers$2.99
- Track up to 10 cars$3.99
ISD Go
No in-app purchases
