# Billdu vs Invoice Maker Simple

The clearest difference is price: Billdu at Free against Invoice Maker Simple's $12.99. Billdu also leads on ratings volume (26K vs 92) and review sentiment (90% vs 74%). Invoice Maker Simple's advantage is update cadence (every 5 days vs every 2 weeks) and iOS requirement (10.0 vs 17.0). On rating, ads, in-app purchases and monetization model there is nothing between them.

Billdu is free to download; Invoice Maker Simple costs $12.99 up front. Billdu sells 10 in-app purchases, starting at $7.99 per month and Invoice Maker Simple sells 2 in-app purchases, starting at $7.49 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Billdu against 4.9 for Invoice Maker Simple. That said, the two scores are not equally well evidenced: Billdu has 26K ratings behind it against 92, so its average is the more settled of the two. Written reviews are what separate them: 90% of Billdu's written reviews are positive against 74% of Invoice Maker Simple's.

Billdu ships an update every 2 weeks, Invoice Maker Simple every 5 days. The most recent releases landed on October 18, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Billdu | Invoice Maker Simple |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| Rating | [4.8 (26K ratings)](https://appshunter.io/ios/app/billdu-invoice-estimate-maker/id527885754/reviews) | **[4.9 (92 ratings)](https://appshunter.io/ios/app/invoice-maker-simple/id704992962/reviews)** |
| Number of ratings | **26K** | 92 |
| Positive reviews | **89.9% of reviews** | 73.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#65** | — |
| Size | 207 MB | 44 MB |
| Requires iOS | 17.0 | **10.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BILLDU LTD](https://appshunter.io/developer/501173313) | [B TO J PTY LTD](https://appshunter.io/developer/569308231) |

## What reviewers say

### Billdu

[App page](https://appshunter.io/ios/app/billdu-invoice-estimate-maker/id527885754)

**Currently charting:** #65 Top Grossing · Business (US App Store)

Create professional invoices and estimates quickly for your small business. This app helps you get paid faster with online payment options, track expenses by scanning receipts, and manage clients and inventory. It's designed for freelancers and contractors to maintain a professional image and streamline billing.

**Highlights:** Customizable invoice templates, Instant estimates and invoices, Online payment processing, Receipt scanning for expense tracking, Client and inventory management, Multi-device synchronization

**Features:** Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LITE - 1 month | $7.99 | per month |
| STANDARD (Month) | $14.99 | per month |
| STANDARD - 1 month | $14.99 | per month |
| STANDARD - 1 month | $14.99 | per month |
| PREMIUM (Month) | $27.99 | per month |
| PREMIUM - 1 month | $27.99 | per month |
| 24 invoices | $59.99 | per year |
| STARTER (Year) | $59.99 | per year |
| STANDARD (Year) | $119.99 | per year |
| STANDARD - 12 months | $119.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 📊 Helpful business features
- 🖼️ Professional-looking invoices
- 🕰️ Time-saving
- 💻 Seamless mobile experience

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔍 Limited customization options
- 💳 Billing/payment issues
- 🕰️ Slow customer support response

**Reported bugs**

- Invoices not being received by clients
- Inconsistent invoice numbering
- Inability to save draft estimates

**Requested features**

- Improved date/time handling
- Ability to transfer data between businesses
- More customization options for invoices
- Integrated payment processing
- Enhanced reporting and analytics


### Invoice Maker Simple

[App page](https://appshunter.io/ios/app/invoice-maker-simple/id704992962)

Easily create and send professional invoices, estimates, and receipts. Track payments, manage expenses, and generate reports to keep your business finances organized. Ideal for freelancers and small business owners.

**Highlights:** Create professional invoices and estimates, Track paid, overdue, and unpaid invoices, Convert quotes and estimates to invoices, Attach photos and signatures, Export data to CSV, Track income and expenses, Generate financial reports

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $7.49 | per month |
| Yearly Subscription | $58.99 | per year |

**What reviewers like**

- 🚀 Great alternative
- 🚀 Easy to use
- 🚀 Convenient invoicing
- 🚀 Professional-looking invoices
- 🚀 Keeps track of invoices

**What reviewers complain about**

- 🐛 Limited formatting options
- 🐛 Crashes/bugs after updates
- 🐛 Difficulty deleting products/services from invoices
- 🐛 Inability to customize invoice contents
- 🐛 Lack of cloud sync/backup

**Reported bugs**

- Crashes when adding new contacts
- Invoices being sent multiple times
- Inability to add/edit contacts
- PDF export issues
- Inability to delete products from invoices

**Requested features**

- Ability to customize invoice contents
- Cloud sync and backup functionality
- More invoice template options
- Notification when invoice is read
- Ability to send invoices via text


## Frequently asked questions

### Is Billdu free?

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

### Is Invoice Maker Simple free?

Invoice Maker Simple costs $12.99, and also offers in-app purchases.

### Which has better reviews, Billdu or Invoice Maker Simple?

Invoice Maker Simple is rated higher. Billdu averages 4.8 out of 5 from 26K ratings, while Invoice Maker Simple averages 4.9 from 92 ratings.

### Do Billdu or Invoice Maker Simple have ads?

Neither Billdu nor Invoice Maker Simple shows ads.

### Which is updated more often, Billdu or Invoice Maker Simple?

Billdu ships an update every 2 weeks, and Invoice Maker Simple every 5 days. Most recently, Billdu was updated on October 18, 2026 and Invoice Maker Simple on October 14, 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.*