# Contrato Operator vs Invoice Maker

The clearest difference is in-app purchases: Contrato Operator at none against Invoice Maker's 10. Invoice Maker's advantage is update cadence (monthly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Invoice Maker sells 10 in-app purchases, starting at $9.99 per month. Contrato Operator asks for nothing beyond the download.

Contrato Operator ships an update every 2 months, Invoice Maker monthly. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Contrato Operator | Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.8 (4 ratings)](https://appshunter.io/ios/app/invoice-maker-billed/id1584216971/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 141 MB | 125 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pedro Franque](https://appshunter.io/developer/1575343889) | [ZTABS (PRIVATE) LIMITED](https://appshunter.io/developer/1567033925) |

## What reviewers say

### Contrato Operator

[App page](https://appshunter.io/ios/app/contrato-operator/id1575344279)

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

**In-app purchases:** none


### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-billed/id1584216971)

Create professional invoices, track expenses, and manage projects from your phone. Get paid faster with automatic reminders and online payment options. Ideal for freelancers and small businesses.

**Highlights:** Create professional invoices quickly, Send estimates that convert to invoices, Accept online payments, Automatic payment reminders, Track expenses with receipt snapping, Generate expense reports, Built-in timer for billable hours

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Billed - Pro Monthly | $9.99 | per month |
| Basic Plan | $9.99 | per month |
| Billed Monthly Offer | $19.99 | per month |
| Billed Monthly With Free Trial | $19.99 | per month |
| Billed Premium Monthly | $24.99 | per month |
| Billed - Pro Annually | $99.99 | per year |
| Basic Plan Yearly | $99.99 | per year |
| Billed Annual Offer | $99.99 | per year |
| Billed Annual With Free Trial | $99.99 | per year |
| Premium Plan Yearly | $249.99 | per year |


## Frequently asked questions

### Is Contrato Operator free?

Contrato Operator 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 Contrato Operator or Invoice Maker have ads?

Neither Contrato Operator nor Invoice Maker shows ads.

### Which is updated more often, Contrato Operator or Invoice Maker?

Contrato Operator ships an update every 2 months, and Invoice Maker monthly. Most recently, Contrato Operator was updated on October 9, 2026 and Invoice Maker on October 24, 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.*