# Topo Maker vs Hydro

The clearest difference is iOS requirement: Topo Maker at 16.2 against Hydro's 26.0. 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.

## The numbers

| Metric | Topo Maker | Hydro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/topo-maker/id6451003613/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | Free | — |
| Size | 11 MB | 7 MB |
| Requires iOS | **16.2** | 26.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Valentin Walker](https://appshunter.io/developer/1613978864) | [Patrick](https://appshunter.io/developer/385768716) |

## What reviewers say

### Topo Maker

[App page](https://appshunter.io/ios/app/topo-maker/id6451003613)

Design and customize climbing routes with detailed on-site mapping. Explore new lines and share your projects with the climbing community to enhance your adventures.

**Highlights:** On-site topo design, Route customization, Detailed mapping, Share projects with community, Climbing route exploration

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

**In-app purchases:** none


### Hydro

[App page](https://appshunter.io/ios/app/hydro-aquatic-data-hub/id6477622181)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Topo Maker free?

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

### Is Hydro free?

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

### Do Topo Maker or Hydro have ads?

Neither Topo Maker nor Hydro shows ads.

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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.*