# Sonar LiDAR vs GuideDog Nav

The clearest difference is in-app purchases: GuideDog Nav at none against Sonar LiDAR's 2. GuideDog Nav also leads on ratings volume (3 vs 1). Sonar LiDAR's advantage is update cadence (weekly vs every 3 weeks). On price, rating, ads and device support there is nothing between them.

Both are free to download. Sonar LiDAR sells 2 one-off in-app purchases. GuideDog Nav asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Sonar LiDAR against 5.0 for GuideDog Nav. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Sonar LiDAR ships an update weekly, GuideDog Nav every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sonar LiDAR | GuideDog Nav |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sonar-lidar/id6756738319/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/guidedog-nav/id6761731954/reviews) |
| Number of ratings | 1 | **3** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 3 MB | 93 MB |
| Requires iOS | 16 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Federico Di Francesco](https://appshunter.io/developer/1610170288) | [Premkumar Krishnamurthy](https://appshunter.io/developer/1891140986) |

## What reviewers say

### Sonar LiDAR

[App page](https://appshunter.io/ios/app/sonar-lidar/id6756738319)

This app transforms your iPhone Pro's LiDAR sensor into a real-time sonar, providing audio and haptic feedback about your surroundings. It detects walls, furniture, steps, and doorways, aiding navigation in familiar environments.

**Highlights:** Real-time sonar feedback, Audio and haptic alerts, Obstacle detection (walls, furniture, steps), Posture guidance, Optional night vision depth view, VoiceOver support

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Offer me a coffee | $0.99 | one-time |
| Offer me a beer. | $3.99 | one-time |


### GuideDog Nav

[App page](https://appshunter.io/ios/app/guidedog-nav/id6761731954)

This navigation assistant uses your iPhone's sensors and AI to detect obstacles, stairs, and hazards in real-time. It provides voice and haptic feedback to help blind and visually impaired individuals navigate safely. All processing is done on-device for enhanced privacy.

**Highlights:** Real-time obstacle detection, LiDAR distance sensing, AI object identification, Voice and haptic alerts, On-device processing, Voice command controls

**In-app purchases:** none


## Frequently asked questions

### Is Sonar LiDAR free?

Sonar LiDAR is free to download, with in-app purchases available.

### Is GuideDog Nav free?

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

### Which has better reviews, Sonar LiDAR or GuideDog Nav?

Sonar LiDAR and GuideDog Nav are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Sonar LiDAR or GuideDog Nav have ads?

Neither Sonar LiDAR nor GuideDog Nav shows ads.

### Which is updated more often, Sonar LiDAR or GuideDog Nav?

Sonar LiDAR ships an update weekly, and GuideDog Nav every 3 weeks. Most recently, Sonar LiDAR was updated on October 30, 2026 and GuideDog Nav on October 31, 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.*