# IRS Attero vs 't Web

The clearest difference is iOS requirement: 't Web at 15.1 against IRS Attero's 17.0. 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.

IRS Attero ships an update every 3 weeks, 't Web every 6 weeks. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | IRS Attero | 't Web |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 19 MB | 42 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Capptions B.V.](https://appshunter.io/developer/540382734) | ['t WEB Opleidingen en Adviezen](https://appshunter.io/developer/1697317854) |

## What reviewers say

### IRS Attero

[App page](https://appshunter.io/ios/app/irs-attero/id1456128575)

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

**In-app purchases:** none


### 't Web

[App page](https://appshunter.io/ios/app/t-web/id6451257079)

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

**In-app purchases:** none


## Frequently asked questions

### Is IRS Attero free?

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

### Is 't Web free?

't Web is free to download, with no in-app purchases.

### Do IRS Attero or 't Web have ads?

Neither IRS Attero nor 't Web shows ads.

### Which is updated more often, IRS Attero or 't Web?

IRS Attero ships an update every 3 weeks, and 't Web every 6 weeks. Most recently, IRS Attero was updated on October 25, 2026 and 't Web on October 12, 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.*