# SensorLog vs Image Alignment

The clearest difference is price: Image Alignment at Free against SensorLog's $2.99. Image Alignment also leads on in-app purchases (none vs 4) and update cadence (fortnightly vs every 2 months). SensorLog's advantage is ads (none vs shown). On device support and iOS requirement there is nothing between them.

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

SensorLog ships an update every 2 months, Image Alignment fortnightly. The most recent releases landed on November 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SensorLog | Image Alignment |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.4 (41 ratings)](https://appshunter.io/ios/app/sensorlog/id388014573/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 69.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 84 MB |
| Requires iOS | 18.0 | **17.7.2** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bernd Thomas](https://appshunter.io/developer/385441510) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## 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 |


### Image Alignment

[App page](https://appshunter.io/ios/app/image-alignment/id6511211319)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SensorLog free?

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

### Is Image Alignment free?

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

### Do SensorLog or Image Alignment have ads?

Image Alignment shows ads; SensorLog does not.

### Which is updated more often, SensorLog or Image Alignment?

SensorLog ships an update every 2 months, and Image Alignment fortnightly. Most recently, SensorLog was updated on November 6, 2026 and Image Alignment on October 24, 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.*