# Secret vs SensorLogger

The clearest difference is price: Secret at Free against SensorLogger's $0.99. Secret also leads on device support (3 vs 1). SensorLogger's advantage is rating (4.5 vs 3.0) and update cadence (every 3 weeks vs every 10 months). On ads, in-app purchases and monetization model there is nothing between them.

Secret is free to download; SensorLogger costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SensorLogger holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: SensorLogger has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 55% of Secret's written reviews are positive against 78% of SensorLogger's.

Secret ships an update every 10 months, SensorLogger every 3 weeks. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Secret | SensorLogger |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/secret/id405805873/reviews) | **[4.5 (10 ratings)](https://appshunter.io/ios/app/sensorlogger-csv-export/id1505203547/reviews)** |
| Number of ratings | 1 | **10** |
| Positive reviews | 54.5% of reviews | **78.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 13 MB | 2 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [curmi.com](https://appshunter.io/developer/354900328) | [Kazumasa Wakamori](https://appshunter.io/developer/1505203546) |

## What reviewers say

### Secret

[App page](https://appshunter.io/ios/app/secret/id405805873)

Securely send and receive encrypted messages that only the intended recipient can read. Protect your private conversations with end-to-end encryption and a password. Messages are not stored on your device after decryption.

**Highlights:** End-to-end message encryption, Password protection for decryption, Shake to clear messages, Messages not stored on device, Supports any language and emoji, Multiple language localizations

**Features:** Vision Pro support

**In-app purchases:** none


### SensorLogger

[App page](https://appshunter.io/ios/app/sensorlogger-csv-export/id1505203547)

Record acceleration, gyroscope, and magnetic field data in real-time or at higher frequencies. Export your sensor readings as a CSV file for further analysis. Optimize data collection by toggling visualization settings.

**Highlights:** Log acceleration, gyroscope, and magnetic field, Synchronous sensor measurement, Real-time data visualization, Adjustable sampling frequency, Export data as CSV file

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Secret free?

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

### Is SensorLogger free?

SensorLogger costs $0.99, with no in-app purchases.

### Which has better reviews, Secret or SensorLogger?

SensorLogger is rated higher. Secret averages 3.0 out of 5 from 1 ratings, while SensorLogger averages 4.5 from 10 ratings.

### Do Secret or SensorLogger have ads?

Neither Secret nor SensorLogger shows ads.

### Which is updated more often, Secret or SensorLogger?

Secret ships an update every 10 months, and SensorLogger every 3 weeks. Most recently, Secret was updated on November 1, 2026 and SensorLogger on November 7, 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.*