# e vs Noesis Guide

The clearest difference is update cadence: Noesis Guide at every 3 days against e's every 4 months. 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.

e ships an update every 4 months, Noesis Guide every 3 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | e | Noesis Guide |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Size | 26 MB | 51 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [MUNICIPALITY OF NAXOS AND SMALL CYCLADES](https://appshunter.io/developer/1711386635) | [NOESIS Science Center & Technology Museum](https://appshunter.io/developer/1819891981) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-naxios/id6469043026)

**Features:** macOS Compatibility

**In-app purchases:** none


### Noesis Guide

[App page](https://appshunter.io/ios/app/noesis-guide/id6747111915)

**In-app purchases:** none


## Frequently asked questions

### Is e free?

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

### Is Noesis Guide free?

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

### Do e or Noesis Guide have ads?

Neither e nor Noesis Guide shows ads.

### Which is updated more often, e or Noesis Guide?

e ships an update every 4 months, and Noesis Guide every 3 days. Most recently, e was updated on October 30, 2026 and Noesis Guide 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.*