# SensorLog vs RTAB

The clearest difference is price: RTAB at Free against SensorLog's $2.99. RTAB also leads on in-app purchases (none vs 4) and review sentiment (100% vs 69%). SensorLog's advantage is update cadence (every 2 months vs every 4 months). On ratings volume, ads and device support there is nothing between them.

RTAB is free to download; SensorLog costs $2.99 up front. SensorLog sells 4 one-off in-app purchases. RTAB asks for nothing beyond the download.

RTAB holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 40 and 39 respectively. Written reviews point the same way: 69% of SensorLog's written reviews are positive against 100% of RTAB's.

SensorLog ships an update every 2 months, RTAB every 4 months. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SensorLog | RTAB |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.4 (40 ratings)](https://appshunter.io/ios/app/sensorlog/id388014573/reviews) | **[4.8 (39 ratings)](https://appshunter.io/ios/app/rtab-map-3d-lidar-scanner/id1564774365/reviews)** |
| Number of ratings | **40** | 39 |
| Positive reviews | 69.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 4 MB | 19 MB |
| Requires iOS | 18.0 | **14.3** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bernd Thomas](https://appshunter.io/developer/385441510) | [Mathieu Labbe](https://appshunter.io/developer/1564774367) |

## What reviewers say

### SensorLog

[App page](https://appshunter.io/ios/app/sensorlog/id388014573)

Record and stream sensor data from your iPhone, iPad, and Apple Watch. Export data in CSV or JSON format, or send it via TCP, UDP, or HTTP requests. Integrates with Core ML models for advanced analysis.

**Highlights:** Log sensor data up to 100Hz, Stream data via TCP/UDP or HTTP, Export data as CSV or JSON, Remote client/server functionality, Siri and Shortcuts integration, Core ML model support, HealthKit data export from Apple Watch

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a Coffee ... | $0.99 | one-time |
| Spend me an Ice Cream ... | $1.99 | one-time |
| Offer me a glas of Wine ... | $5.99 | one-time |
| Invite me for a Cocktail ... | $9.99 | one-time |


### RTAB

[App page](https://appshunter.io/ios/app/rtab-map-3d-lidar-scanner/id1564774365)

This utility app enables real-time 3D scanning and mapping of environments using LiDAR or RGB-D sensors. It features online loop closure detection and map optimization for immediate feedback, with export options for various 3D formats.

**Highlights:** Online 3D scanning and mapping, Loop closure detection and map correction, Save maps in DB format, Export in PLY, LAS, or OBJ, Multi-session mapping, AR/VR visualization mode

**In-app purchases:** none


## Frequently asked questions

### Is SensorLog free?

SensorLog costs $2.99, and also offers in-app purchases.

### Is RTAB free?

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

### Which has better reviews, SensorLog or RTAB?

RTAB is rated higher. SensorLog averages 4.4 out of 5 from 40 ratings, while RTAB averages 4.8 from 39 ratings.

### Do SensorLog or RTAB have ads?

Neither SensorLog nor RTAB shows ads.

### Which is updated more often, SensorLog or RTAB?

SensorLog ships an update every 2 months, and RTAB every 4 months. Most recently, SensorLog was updated on October 14, 2026 and RTAB on October 9, 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.*