# Billdu vs Simple Invoice Bill Maker

The clearest difference is rating: Billdu at 4.8 against Simple Invoice Bill Maker's 4.2. Billdu also leads on ratings volume (26K vs 6) and review sentiment (89% vs 69%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Billdu sells 10 in-app purchases, starting at $7.99 per month and Simple Invoice Bill Maker sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Billdu holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Billdu has 26K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 89% of Billdu's written reviews are positive against 69% of Simple Invoice Bill Maker's.

Billdu ships an update every 2 weeks, Simple Invoice Bill Maker every 10 days. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Billdu | Simple Invoice Bill Maker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (26K ratings)](https://appshunter.io/ios/app/billdu-invoice-estimate-maker/id527885754/reviews)** | [4.2 (6 ratings)](https://appshunter.io/ios/app/simple-invoice-bill-maker/id6737187790/reviews) |
| Number of ratings | **26K** | 6 |
| Positive reviews | **89.3% of reviews** | 69.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#71** | — |
| Size | 205 MB | 26 MB |
| Requires iOS | 17.0 | 17 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [BILLDU LTD](https://appshunter.io/developer/501173313) | [IT WAVES](https://appshunter.io/developer/1596113244) |

## What reviewers say

### Billdu

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

**Currently charting:** #71 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


### Simple Invoice Bill Maker

[App page](https://appshunter.io/ios/app/simple-invoice-bill-maker/id6737187790)

Easily create and customize professional PDF invoices on your mobile device. This tool is designed for freelancers and small business owners needing quick and hassle-free billing solutions. Features include custom branding, client management, and automatic tax calculations.

**Highlights:** Quick PDF generation, Custom branding, Client management, Tax and discount calculator, On-the-go invoicing

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $1.99 | per 7 days |
| Premium Monthly | $3.99 | per month |
| Premium Yearly | $34.99 | per year |


## Frequently asked questions

### Is Billdu free?

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

### Is Simple Invoice Bill Maker free?

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

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

Billdu is rated higher. Billdu averages 4.8 out of 5 from 26K ratings, while Simple Invoice Bill Maker averages 4.2 from 6 ratings.

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

Neither Billdu nor Simple Invoice Bill Maker shows ads.

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

Billdu ships an update every 2 weeks, and Simple Invoice Bill Maker every 10 days. Most recently, Billdu was updated on September 24, 2026 and Simple Invoice Bill Maker on September 10, 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.*