# AI Smart Invoice vs ThingsApp.

The clearest difference is in-app purchases: ThingsApp. at none against AI Smart Invoice's 3. ThingsApp. also leads on update cadence (every 5 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AI Smart Invoice sells 3 in-app purchases, starting at $4.99 per month. ThingsApp. asks for nothing beyond the download.

AI Smart Invoice ships an update every 4 months, ThingsApp. every 5 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AI Smart Invoice | ThingsApp. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Size | 53 MB | 60 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Amir Sayed](https://appshunter.io/developer/1509659335) | [Gaganjot Singh](https://appshunter.io/developer/1773956475) |

## What reviewers say

### AI Smart Invoice

[App page](https://appshunter.io/ios/app/ai-smart-invoice-accounts/id6448665454)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $4.99 | per month |
| 6 Months Subscription | $19.99 | per 6 months |
| Yearly Subscription | $29.99 | per year |


### ThingsApp.

[App page](https://appshunter.io/ios/app/thingsapp/id6736942040)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AI Smart Invoice free?

AI Smart Invoice is free to download, with in-app purchases available.

### Is ThingsApp. free?

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

### Do AI Smart Invoice or ThingsApp. have ads?

Neither AI Smart Invoice nor ThingsApp. shows ads.

### Which is updated more often, AI Smart Invoice or ThingsApp.?

AI Smart Invoice ships an update every 4 months, and ThingsApp. every 5 days. Most recently, AI Smart Invoice was updated on October 27, 2026 and ThingsApp. on October 25, 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.*