# Invoice Generator App vs Invoice Maker by SPK

The clearest difference is monetization model: Invoice Generator App at free against Invoice Maker by SPK's free with in-app purchases. Invoice Maker by SPK's advantage is rating (4.8 vs 4.5) and update cadence (weekly vs fortnightly). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Invoice Generator App sells 3 in-app purchases, starting at $9.00 per month and Invoice Maker by SPK sells 9 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Invoice Maker by SPK holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 322 and 906 respectively. Written reviews point the same way: 69% of Invoice Generator App's written reviews are positive against 73% of Invoice Maker by SPK's.

Invoice Generator App ships an update fortnightly, Invoice Maker by SPK weekly. The most recent releases landed on September 19, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Invoice Generator App | Invoice Maker by SPK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (322 ratings)](https://appshunter.io/ios/app/invoice-generator-app/id1077525643/reviews) | **[4.8 (906 ratings)](https://appshunter.io/ios/app/invoice-maker-by-spk/id1575877820/reviews)** |
| Number of ratings | 322 | **906** |
| Positive reviews | 69.1% of reviews | **73.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 43 MB | 30 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Invoice Generator LLC](https://appshunter.io/developer/1852270766) | [SPK Studios LLC](https://appshunter.io/developer/1575877822) |

## What reviewers say

### Invoice Generator App

[App page](https://appshunter.io/ios/app/invoice-generator-app/id1077525643)

Easily create professional invoices directly from your mobile device. Send them to clients, receive payments, or download them as PDFs. Streamline your billing process on the go.

**Highlights:** Create professional invoices, Send invoices instantly, Get paid online, Download as PDF, Mobile invoicing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Generator Pro | $9.00 | per month |
| Premium Monthly | $12.99 | per month |
| Premium Yearly | $129.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 👍 Clean and professional invoices
- 🚀 Quick and convenient
- 🔒 Secure
- 👍 Great customer service

**What reviewers complain about**

- 🐛 Glitchy and buggy
- 🐛 Invoices not updating correctly
- 🐛 Subscription issues
- 🐛 Crashes and freezes
- 🐛 Unreliable email delivery

**Reported bugs**

- Inability to delete contacts
- Invoices not sending as PDF
- App freezing when adding products
- Subscription button not working
- Invoices reverting to default names

**Requested features**

- Ability to mark invoices as paid
- Option to attach files/images to invoices
- Recurring invoice functionality
- Customizable invoice templates
- Desktop/web app version


### Invoice Maker by SPK

[App page](https://appshunter.io/ios/app/invoice-maker-by-spk/id1575877820)

Create and send professional PDF invoices and estimates quickly and easily. This ad-free, watermark-free app is ideal for small business owners, consultants, and freelancers on the go. Customize templates, track clients, and manage your billing efficiently.

**Highlights:** Create unlimited invoices and estimates, No ads or watermarks, Customizable invoice fields, Client list management, Multiple sharing options (email, WhatsApp, text), Convert estimates to invoices, Company logo and signature upload

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| My Invoice Generator | $4.99 | per month |
| The Invoice Maker | $7.99 | per month |
| Invoice Maker App | $9.99 | per month |
| Invoice Maker Pro | $9.99 | per month |
| Smart Invoice Maker | $39.99 | per year |
| Quick Invoice Maker | $59.99 | per year |
| Invoice Maker Professional | $69.99 | per year |
| App Invoice Maker | $89.99 | per year |
| Invoice Maker Plus | $89.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick and efficient
- 💡 Helpful features
- ⭐ Great app overall

**What reviewers complain about**

- 🐛 Data loss issues
- 🔒 Lack of device sync
- 📝 Limited item descriptions
- 🔧 Unreliable functionality

**Reported bugs**

- Invoices not updating correctly
- Inability to unsubscribe from paid features

**Requested features**

- Ability to sync data across devices
- Increased character limit for item descriptions
- Improved customer support


## Frequently asked questions

### Is Invoice Generator App free?

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

### Is Invoice Maker by SPK free?

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

### Which has better reviews, Invoice Generator App or Invoice Maker by SPK?

Invoice Maker by SPK is rated higher. Invoice Generator App averages 4.5 out of 5 from 322 ratings, while Invoice Maker by SPK averages 4.8 from 906 ratings.

### Do Invoice Generator App or Invoice Maker by SPK have ads?

Neither Invoice Generator App nor Invoice Maker by SPK shows ads.

### Which is updated more often, Invoice Generator App or Invoice Maker by SPK?

Invoice Generator App ships an update fortnightly, and Invoice Maker by SPK weekly. Most recently, Invoice Generator App was updated on September 19, 2026 and Invoice Maker by SPK on September 22, 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.*