# Speedbox Digital Speedometer vs LingGrid

The clearest difference is review sentiment: LingGrid at 100% against Speedbox Digital Speedometer's 63%. LingGrid also leads on rating (5.0 vs 4.5) and ads (none vs shown). Speedbox Digital Speedometer's advantage is ratings volume (6.1K vs 1) and device support (4 vs 2). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LingGrid holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Speedbox Digital Speedometer has 6.1K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 63% of Speedbox Digital Speedometer's written reviews are positive against 100% of LingGrid's.

Speedbox Digital Speedometer ships an update every 5 months, LingGrid every 9 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Speedbox Digital Speedometer | LingGrid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (6.1K ratings)](https://appshunter.io/ios/app/speedbox-digital-speedometer/id1079304431/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/linggrid/id6774998894/reviews)** |
| Number of ratings | **6.1K** | 1 |
| Positive reviews | 62.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | Ad-supported | **Free** |
| Size | 7 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [UniCom Technology](https://appshunter.io/developer/1270764210) | [华明 罗](https://appshunter.io/developer/1670053427) |

## What reviewers say

### Speedbox Digital Speedometer

[App page](https://appshunter.io/ios/app/speedbox-digital-speedometer/id1079304431)

This free GPS-based app functions as a digital speedometer and head-up display. It shows current speed, average speed, maximum speed, and road information. It also provides slope data and weather conditions, with optional HUD mirroring for windshield reflection.

**Highlights:** GPS Speedometer (MPH, KMPH, KNOT), HUD Display (Mirror Mode), Slope and Ascent/Descent Display, Road Name and Speed Limit, Current Weather Conditions, Compass and Odometer, Speed Camera Alerts

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Accurate speed display
- 🚀 Works well for motorcycles and bikes
- 💡 Useful for malfunctioning speedometers
- 👍 Easy to use and navigate
- 👍 Vibrant colors and clear display

**What reviewers complain about**

- 🐛 Incorrect or slow to update speed limits
- 🐛 Compatibility issues with CarPlay
- 🐛 Freezes or stops working without data connection
- 🔋 Drains battery
- 📢 Annoying ads

**Reported bugs**

- Turns off music when over speed limit
- Compass is inaccurate
- Doesn't work properly, crashes on launch

**Requested features**

- Add trip time and distance tracking
- Allow customization of speed limit settings
- Offer a paid ad-free version


### LingGrid

[App page](https://appshunter.io/ios/app/linggrid/id6774998894)

This app provides a secure digital backup for physical dynamic password cards used for the Jiangsu Gaokao. It allows users to scan or import card images, save encrypted data locally, and quickly look up codes by selecting coordinates. Designed to reduce stress during critical post-exam processes.

**Highlights:** Scan physical password cards, Import photos from album, Recognize 8x8 password grid, Save encrypted data locally, Quick code lookup by coordinates, Digital backup for password cards

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

**In-app purchases:** none


## Frequently asked questions

### Is Speedbox Digital Speedometer free?

Speedbox Digital Speedometer is free to download, with no in-app purchases.

### Is LingGrid free?

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

### Which has better reviews, Speedbox Digital Speedometer or LingGrid?

LingGrid is rated higher. Speedbox Digital Speedometer averages 4.5 out of 5 from 6.1K ratings, while LingGrid averages 5.0 from 1 ratings.

### Do Speedbox Digital Speedometer or LingGrid have ads?

Speedbox Digital Speedometer shows ads; LingGrid does not.

### Which is updated more often, Speedbox Digital Speedometer or LingGrid?

Speedbox Digital Speedometer ships an update every 5 months, and LingGrid every 9 days. Most recently, Speedbox Digital Speedometer was updated on October 15, 2026 and LingGrid on October 8, 2026.

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