# Care Concept InvoiceApp vs ATool

The clearest difference is iOS requirement: Care Concept InvoiceApp at 10.0 against ATool's 15.5. 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.

Care Concept InvoiceApp ships an update fortnightly, ATool every 9 days. The most recent releases landed on September 27, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Care Concept InvoiceApp | ATool |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Size | 11 MB | 61 MB |
| Requires iOS | **10.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Care Concept Aktiengesellschaft](https://appshunter.io/developer/1550565207) | [Stefan Adler](https://appshunter.io/developer/1836349833) |

## What reviewers say

### Care Concept InvoiceApp

[App page](https://appshunter.io/ios/app/care-concept-invoiceapp/id1550565205)

**Features:** Apple Wallet

**In-app purchases:** none


### ATool

[App page](https://appshunter.io/ios/app/atool/id6764324362)

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

**In-app purchases:** none


## Frequently asked questions

### Is Care Concept InvoiceApp free?

Care Concept InvoiceApp is free to download, with no in-app purchases.

### Is ATool free?

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

### Do Care Concept InvoiceApp or ATool have ads?

Neither Care Concept InvoiceApp nor ATool shows ads.

### Which is updated more often, Care Concept InvoiceApp or ATool?

Care Concept InvoiceApp ships an update fortnightly, and ATool every 9 days. Most recently, Care Concept InvoiceApp was updated on September 27, 2026 and ATool on October 2, 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.*