# Watchlog vs SECA

The clearest difference is iOS requirement: Watchlog at 10.0 against SECA's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Watchlog ships an update every 3 weeks, SECA monthly. The most recent releases landed on September 17, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | Watchlog | SECA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (4 ratings)](https://appshunter.io/ios/app/seca/id6502897162/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Free |
| Size | 35 MB | 86 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hydrotechnik UK Test Engineering Ltd](https://appshunter.io/developer/1515531717) | [上海铭控传感技术有限公司](https://appshunter.io/developer/1687248200) |

## What reviewers say

### Watchlog

[App page](https://appshunter.io/ios/app/watchlog/id1520386269)

**Features:** macOS Compatibility

**In-app purchases:** none


### SECA

[App page](https://appshunter.io/ios/app/seca/id6502897162)

This utility app allows users to switch sensor units and display units, export data to Excel, and load real-time data curves. It also enables reading data and modifying configuration parameters in real time.

**Highlights:** Switch sensor units, Export data to Excel, Switch display units, Load real-time data curves, Modify configuration parameters

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Watchlog free?

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

### Is SECA free?

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

### Do Watchlog or SECA have ads?

Neither Watchlog nor SECA shows ads.

### Which is updated more often, Watchlog or SECA?

Watchlog ships an update every 3 weeks, and SECA monthly. Most recently, Watchlog was updated on September 17, 2026 and SECA on August 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.*