# RC Timing vs ISD Go

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.

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.

## The numbers

| Metric | RC Timing | ISD Go |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (33 ratings)](https://appshunter.io/ios/app/rc-timing/id1092261747/reviews)** | [1.8 (31 ratings)](https://appshunter.io/ios/app/isd-go/id1447072980/reviews) |
| Number of ratings | **33** | 31 |
| Positive reviews | **66.7% of reviews** | 18.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 48 MB | 26 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Martin](https://appshunter.io/developer/286468404) | [深圳艾斯特创新科技有限公司](https://appshunter.io/developer/1405370693) |

## What reviewers say

### RC Timing

[App page](https://appshunter.io/ios/app/rc-timing/id1092261747)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Car Classes | $1.99 | one-time |
| Pitstop Feature | $1.99 | one-time |
| Unlimited Tracks | $2.99 | one-time |
| Unlimited Drivers | $2.99 | one-time |
| Track up to 10 cars | $3.99 | one-time |


### ISD Go

[App page](https://appshunter.io/ios/app/isd-go/id1447072980)

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.

**Highlights:** Connect BLE smart devices, Wireless device operation, Automatic firmware detection, Firmware upgrades, User-friendly interface

**In-app purchases:** none

**What reviewers like**

- 👍 Easy firmware updates (sometimes)
- 👍 Practical app interface
- 👍 Works for some users
- 👍 Good hardware functionality (without app)

**What reviewers complain about**

- 🐛 Frequent connection drops (Bluetooth)
- 🐛 Firmware update failures
- 🐛 Device not detected
- 🐛 App crashes
- 🐛 Inaccurate readings/settings

**Reported bugs**

- App crashes during updates
- Device not recognized by app
- Abnormal network connection for firmware server
- App not updated for current iOS
- Bluetooth not reconnecting

**Requested features**

- 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


## Frequently asked questions

### Is RC Timing free?

RC Timing is free to download, with in-app purchases available.

### Is ISD Go free?

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

### Which has better reviews, RC Timing or ISD Go?

RC Timing is rated higher. RC Timing averages 3.4 out of 5 from 33 ratings, while ISD Go averages 1.8 from 31 ratings.

### Do RC Timing or ISD Go have ads?

Neither RC Timing nor ISD Go shows ads.

### Which is updated more often, RC Timing or ISD Go?

RC Timing ships an update every 8 months, and ISD Go weekly. Most recently, RC Timing was updated on October 23, 2026 and ISD Go on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*