# Billdu vs Invoice Maker Simple Generator

Billdu and Invoice Maker Simple Generator both sit at 4.8 stars, but that hides the real split: 89% of Billdu's written reviews are positive against 0% of Invoice Maker Simple Generator's. Billdu also leads on ads (none vs shown) and ratings volume (26K vs 223). Invoice Maker Simple Generator's advantage is iOS requirement (15.3 vs 17.0). On price, rating, update cadence 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 Invoice Maker Simple Generator sells 4 in-app purchases, starting at $1.99 per 7 days. 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 4.7 for Invoice Maker Simple Generator. That said, the two scores are not equally well evidenced: Billdu has 26K ratings behind it against 223, so its average is the more settled of the two. Written reviews are what separate them: 89% of Billdu's written reviews are positive against 0% of Invoice Maker Simple Generator's.

Billdu ships an update every 2 weeks, Invoice Maker Simple Generator every 11 days. The most recent releases landed on September 26, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | Billdu | Invoice Maker Simple Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (26K ratings)](https://appshunter.io/ios/app/billdu-invoice-estimate-maker/id527885754/reviews)** | [4.7 (223 ratings)](https://appshunter.io/ios/app/invoice-maker-simple-generator/id6451054831/reviews) |
| Number of ratings | **26K** | 223 |
| Positive reviews | **89.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#59** | — |
| Size | 205 MB | 76 MB |
| Requires iOS | 17.0 | **15.3** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BILLDU LTD](https://appshunter.io/developer/501173313) | [3100 Michigan Apartments, L.P.](https://appshunter.io/developer/1856861664) |

## What reviewers say

### Billdu

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

**Currently charting:** #59 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 Generator

[App page](https://appshunter.io/ios/app/invoice-maker-simple-generator/id6451054831)

Create professional invoices quickly and efficiently with this user-friendly app. Easily add products, services, and company details, with automatic calculations for accurate totals. Share your finalized invoices via email, messaging, or print.

**Highlights:** User-friendly interface, Automatic calculations, Save company information, Add notes and terms, Preview invoices, Share via email/messaging/print

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Maker Special Offer | $1.99 | per 7 days |
| Invoice Premium Subscription | $5.99 | per 7 days |
| Invoice Premium Subscription | $5.99 | per 7 days |
| Invoice Maker Month Premium | $11.99 | per month |


## Frequently asked questions

### Is Billdu free?

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

### Is Invoice Maker Simple Generator free?

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

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

Billdu is rated higher. Billdu averages 4.8 out of 5 from 26K ratings, while Invoice Maker Simple Generator averages 4.7 from 223 ratings.

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

Invoice Maker Simple Generator shows ads; Billdu does not.

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

Billdu ships an update every 2 weeks, and Invoice Maker Simple Generator every 11 days. Most recently, Billdu was updated on September 26, 2026 and Invoice Maker Simple Generator on August 13, 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.*