# h2oResearch vs NoteHaus

The clearest difference is in-app purchases: h2oResearch at none against NoteHaus's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. NoteHaus sells 2 in-app purchases, starting at $1.99 per month. h2oResearch asks for nothing beyond the download.

h2oResearch ships an update every 2 weeks, NoteHaus every 10 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | h2oResearch | NoteHaus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/h2oresearch/id6747778282/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | Free | — |
| Size | 22 MB | 556 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [H2o.ai Inc](https://appshunter.io/developer/1751974048) | [RIDVANULLAH Arslan](https://appshunter.io/developer/1858102618) |

## What reviewers say

### h2oResearch

[App page](https://appshunter.io/ios/app/h2oresearch/id6747778282)

This AI-powered mobile assistant provides deep research intelligence and enterprise-ready AI capabilities. It leverages advanced agents and large language models for comprehensive analysis and secure data handling, transforming how teams access and interact with information.

**Highlights:** Deep research intelligence with AI agents, Enterprise-ready AI for business data, Secure and private data handling, LLM & RAG integration, Specialized AI agents for workflows, Customizable research experience

**Features:** macOS Compatibility

**In-app purchases:** none


### NoteHaus

[App page](https://appshunter.io/ios/app/notehaus/id6756613224)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NoteHaus Pro | $1.99 | per month |
| NoteHaus Pro Yearly | $14.99 | per year |


## Frequently asked questions

### Is h2oResearch free?

h2oResearch is free to download, with no in-app purchases.

### Is NoteHaus free?

NoteHaus is free to download, with in-app purchases available.

### Do h2oResearch or NoteHaus have ads?

Neither h2oResearch nor NoteHaus shows ads.

### Which is updated more often, h2oResearch or NoteHaus?

h2oResearch ships an update every 2 weeks, and NoteHaus every 10 days. Most recently, h2oResearch was updated on October 30, 2026 and NoteHaus on October 30, 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.*