# SensorLog vs Gauges

The clearest difference is price: Gauges at Free against SensorLog's $2.99. Gauges also leads on ratings volume (3.1K vs 41) and update cadence (fortnightly vs every 2 months). SensorLog's advantage is review sentiment (69% vs 54%). On ads, in-app purchases, monetization model and device support there is nothing between them.

Gauges is free to download; SensorLog costs $2.99 up front. SensorLog sells 4 one-off in-app purchases and Gauges sells 5 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Gauges holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Gauges has 3.1K ratings behind it against 41, so its average is the more settled of the two. Written reviews complicate that: 69% of SensorLog's written reviews are positive against 54% of Gauges's, so the app with the better star average is not the one people write more warmly about.

SensorLog ships an update every 2 months, Gauges fortnightly. Both last shipped on October 29, 2026.

## The numbers

| Metric | SensorLog | Gauges |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.4 (41 ratings)](https://appshunter.io/ios/app/sensorlog/id388014573/reviews) | **[4.6 (3.1K ratings)](https://appshunter.io/ios/app/gauges-speedometer-and-sensors/id1056649790/reviews)** |
| Number of ratings | 41 | **3.1K** |
| Positive reviews | **69.0% of reviews** | 54.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 4 MB | 7 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Bernd Thomas](https://appshunter.io/developer/385441510) | [Boluga](https://appshunter.io/developer/449109990) |

## 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 |


### Gauges

[App page](https://appshunter.io/ios/app/gauges-speedometer-and-sensors/id1056649790)

This utility app transforms your device into a multi-sensor tool. It provides real-time readings for GPS, altitude, speed, barometric pressure, acceleration, magnetic force, sound levels, and light intensity. Visualize data with graphs and maps, mark values, and record sensor information for later analysis.

**Highlights:** Real-time sensor readings, GPS, Altimeter, Speedometer, Barometer, Accelerometer, Magnetometer, Sound level and Light meter, Data graphing and mapping, Value marking and recording, Data sharing in CSV format

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Monthly | $2.99 | per month |
| Annual | $14.99 | per year |
| Record Unlock | $3.99 | one-time |
| Lifetime | $29.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 🔍 Useful tools and gauges
- 👍 Accurate measurements
- 🎨 Clean and minimal interface
- 💡 Helpful for scientific/educational purposes

**What reviewers complain about**

- 🐛 Inaccurate or unreliable readings
- 💰 Paywall for advanced features
- 🔒 Privacy concerns with sensor usage
- 🤔 Unclear purpose or usefulness
- 🕰️ Timestamp inaccuracies

**Reported bugs**

- Altitude reading showing unrealistic values
- Speedometer not working as expected
- Magnetometer not functioning properly
- Inconsistent or missing sensor data

**Requested features**

- Add temperature sensor
- Improve altimeter accuracy
- Implement Apple Watch complications
- Allow customization of units and settings
- Enhance data logging and export options


## Frequently asked questions

### Is SensorLog free?

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

### Is Gauges free?

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

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

Gauges is rated higher. SensorLog averages 4.4 out of 5 from 41 ratings, while Gauges averages 4.6 from 3.1K ratings.

### Do SensorLog or Gauges have ads?

Neither SensorLog nor Gauges shows ads.

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

SensorLog ships an update every 2 months, and Gauges fortnightly. Most recently, SensorLog was updated on October 29, 2026 and Gauges on October 29, 2026.

---

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