# Ipsos KnowledgePanel vs Lee's Air

The clearest difference is iOS requirement: Lee's Air at 13.0 against Ipsos KnowledgePanel's 15.0. 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.

Ipsos KnowledgePanel ships an update every 5 weeks, Lee's Air every 2 months. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Ipsos KnowledgePanel | Lee's Air |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (17 ratings)](https://appshunter.io/ios/app/ipsos-knowledgepanel/id6739403434/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 33 MB | 62 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ipsos](https://appshunter.io/developer/983560306) | [Nuve Home](https://appshunter.io/developer/1752266972) |

## What reviewers say

### Ipsos KnowledgePanel

[App page](https://appshunter.io/ios/app/ipsos-knowledgepanel/id6739403434)

Participate in online surveys and earn rewards as a registered member of a research group. This app provides access to Ipsos KnowledgePanel research opportunities.

**Highlights:** Online survey participation, Reward earning opportunities, Access to Ipsos KnowledgePanel research, Panelist account management

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

**In-app purchases:** none


### Lee's Air

[App page](https://appshunter.io/ios/app/lees-air/id6746232391)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ipsos KnowledgePanel free?

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

### Is Lee's Air free?

Lee's Air is free to download, with no in-app purchases.

### Do Ipsos KnowledgePanel or Lee's Air have ads?

Neither Ipsos KnowledgePanel nor Lee's Air shows ads.

### Which is updated more often, Ipsos KnowledgePanel or Lee's Air?

Ipsos KnowledgePanel ships an update every 5 weeks, and Lee's Air every 2 months. Most recently, Ipsos KnowledgePanel was updated on October 20, 2026 and Lee's Air on October 6, 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.*