# CASI Audit Tool vs Audit ABL

The clearest difference is iOS requirement: CASI Audit Tool at 13.1 against Audit ABL'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.

CASI Audit Tool ships an update every 3 months, Audit ABL every 2 months. Both last shipped on October 6, 2026.

## The numbers

| Metric | CASI Audit Tool | Audit ABL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 38 MB | 38 MB |
| Requires iOS | **13.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [everysite](https://appshunter.io/developer/643308653) | [ABL Group](https://appshunter.io/developer/1838394779) |

## What reviewers say

### CASI Audit Tool

[App page](https://appshunter.io/ios/app/casi-audit-tool/id643308650)

**Features:** macOS Compatibility

**In-app purchases:** none


### Audit ABL

[App page](https://appshunter.io/ios/app/audit-abl/id6752239696)

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

**In-app purchases:** none


## Frequently asked questions

### Is CASI Audit Tool free?

CASI Audit Tool is free to download, with no in-app purchases.

### Is Audit ABL free?

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

### Do CASI Audit Tool or Audit ABL have ads?

Neither CASI Audit Tool nor Audit ABL shows ads.

### Which is updated more often, CASI Audit Tool or Audit ABL?

CASI Audit Tool ships an update every 3 months, and Audit ABL every 2 months. Most recently, CASI Audit Tool was updated on October 6, 2026 and Audit ABL 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.*