# Watchlog vs Oleotec DataPressure

The clearest difference is update cadence: Watchlog at every 3 weeks against Oleotec DataPressure's every 2 months. Watchlog also leads on iOS requirement (10.0 vs 13.0). On price, ads, in-app purchases and device support 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, Oleotec DataPressure every 2 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Watchlog | Oleotec DataPressure |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 35 MB | 26 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hydrotechnik UK Test Engineering Ltd](https://appshunter.io/developer/1515531717) | [OLEOTEC S.r.l.](https://appshunter.io/developer/1779944176) |

## What reviewers say

### Watchlog

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Oleotec DataPressure

[App page](https://appshunter.io/ios/app/oleotec-datapressure/id6738282085)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Watchlog free?

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

### Is Oleotec DataPressure free?

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

### Do Watchlog or Oleotec DataPressure have ads?

Neither Watchlog nor Oleotec DataPressure shows ads.

### Which is updated more often, Watchlog or Oleotec DataPressure?

Watchlog ships an update every 3 weeks, and Oleotec DataPressure every 2 months. Most recently, Watchlog was updated on November 3, 2026 and Oleotec DataPressure on October 27, 2026.

---

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