# 专供 vs Invoice Maker

The clearest difference is in-app purchases: 专供 at none against Invoice Maker's 3. 专供 also leads on update cadence (every 3 weeks vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Invoice Maker sells 3 one-off in-app purchases. 专供 asks for nothing beyond the download.

专供 ships an update every 3 weeks, Invoice Maker every 6 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 专供 | Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 11 MB | 74 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Shanghai Baiping Information Technology Co., Ltd](https://appshunter.io/developer/1512351563) | [Mind Stream Logics](https://appshunter.io/developer/1778064671) |

## What reviewers say

### 专供

[App page](https://appshunter.io/ios/app/id1664008820)

**Features:** macOS Compatibility

**In-app purchases:** none


### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-receipt-creator/id6737811083)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $0.99 | one-time |
| Semi-Annual Plan | $2.99 | one-time |
| Yearly Plan | $5.99 | one-time |


## Frequently asked questions

### Is 专供 free?

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

### Is Invoice Maker free?

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

### Do 专供 or Invoice Maker have ads?

Neither 专供 nor Invoice Maker shows ads.

### Which is updated more often, 专供 or Invoice Maker?

专供 ships an update every 3 weeks, and Invoice Maker every 6 weeks. Most recently, 专供 was updated on November 3, 2026 and Invoice Maker on October 30, 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.*