# InterroBot vs Alembic

The clearest difference is iOS requirement: InterroBot at 15.0 against Alembic's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. InterroBot sells 2 in-app purchases, starting at $39.99 per year and Alembic sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

InterroBot ships an update every 4 weeks, Alembic monthly. The most recent releases landed on October 4, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | InterroBot | Alembic |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod, Mac | iPhone, iPad, Mac |
| Age rating | 12+ | 4+ |
| Developer | [Pragmar LLC](https://appshunter.io/developer/1755636230) | [Luke Mclaughlin](https://appshunter.io/developer/1893671036) |

## What reviewers say

### InterroBot

[App page](https://appshunter.io/ios/app/interrobot/id6757133730)

This tool helps you analyze websites by crawling them and searching for specific content, errors, or file types. It offers detailed reports and advanced filtering for technical SEO and website maintenance.

**Highlights:** HTTP error detection, Website content search, Technical SEO analysis, Link rot cleanup, Website maintenance tool, Advanced content filtering, Post-crawl website reports

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InterroBot Annual Subscription | $39.99 | per year |
| InterroBot Standard | $99.99 | one-time |


### Alembic

[App page](https://appshunter.io/ios/app/alembic-data-distiller/id6790155591)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Alembic Pro Monthly Plan | $4.99 | per month |
| Alembic Pro Annual | $29.99 | per year |


## Frequently asked questions

### Is InterroBot free?

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

### Is Alembic free?

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

### Do InterroBot or Alembic have ads?

Neither InterroBot nor Alembic shows ads.

### Which is updated more often, InterroBot or Alembic?

InterroBot ships an update every 4 weeks, and Alembic monthly. Most recently, InterroBot was updated on October 4, 2026 and Alembic on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*