# HidroObserva vs Runking

The clearest difference is iOS requirement: HidroObserva at 13.0 against Runking's 15.5.0. 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.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | HidroObserva | Runking |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | — | Free |
| Size | 64 MB | 52 MB |
| Requires iOS | **13.0** | 15.5.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | +4 |
| Developer | [Servicos e Informacoes do Brasil](https://appshunter.io/developer/1475781851) | [Alex de Oliveira Silva](https://appshunter.io/developer/990789683) |

## What reviewers say

### HidroObserva

[App page](https://appshunter.io/ios/app/hidroobserva/id6449265378)

**Features:** macOS Compatibility

**In-app purchases:** none


### Runking

[App page](https://appshunter.io/ios/app/runking/id6451327424)

This app helps users find and register for street races, track runners in real-time, and view detailed results. It also provides event organizers with a streamlined accreditation system. Connect with a community of runners and share your achievements.

**Highlights:** Find street races, Event accreditation, Real-time runner tracking, Detailed race results, Runner profiles and community, Secure payment processing

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

**In-app purchases:** none


## Frequently asked questions

### Is HidroObserva free?

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

### Is Runking free?

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

### Do HidroObserva or Runking have ads?

Neither HidroObserva nor Runking shows ads.

### Which is updated more often, HidroObserva or Runking?

HidroObserva ships an update fortnightly, and Runking fortnightly. Most recently, HidroObserva was updated on October 1, 2026 and Runking on October 9, 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.*