# Invoice Maker ▸ Invoice Simple vs Service Tech Work Orders Plus

The clearest difference is price: Invoice Maker ▸ Invoice Simple at Free against Service Tech Work Orders Plus's $7.99. Invoice Maker ▸ Invoice Simple also leads on rating (4.9 vs 4.2) and update cadence (every 9 days vs every 3 months). Service Tech Work Orders Plus's advantage is review sentiment (82% vs 64%) and iOS requirement (13.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Invoice Maker ▸ Invoice Simple is free to download; Service Tech Work Orders Plus costs $7.99 up front. Invoice Maker ▸ Invoice Simple sells 9 in-app purchases, starting at $6.99 per month and Service Tech Work Orders Plus sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Invoice Maker ▸ Invoice Simple holds the better App Store score, 4.9 against 4.2. That said, the two scores are not equally well evidenced: Invoice Maker ▸ Invoice Simple has 123K ratings behind it against 13, so its average is the more settled of the two. Written reviews complicate that: 64% of Invoice Maker ▸ Invoice Simple's written reviews are positive against 82% of Service Tech Work Orders Plus's, so the app with the better star average is not the one people write more warmly about.

Invoice Maker ▸ Invoice Simple ships an update every 9 days, Service Tech Work Orders Plus every 3 months. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Invoice Maker ▸ Invoice Simple | Service Tech Work Orders Plus |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | **[4.9 (123K ratings)](https://appshunter.io/ios/app/invoice-maker-invoice-simple/id694831622/reviews)** | [4.2 (13 ratings)](https://appshunter.io/ios/app/service-tech-work-orders-plus/id849337035/reviews) |
| Number of ratings | **123K** | 13 |
| Positive reviews | 63.9% of reviews | **81.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#9** | — |
| Size | 209 MB | 124 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Zenvoice Inc.](https://appshunter.io/developer/990870994) | [JZ Mobile LLC](https://appshunter.io/developer/390988405) |

## What reviewers say

### Invoice Maker ▸ Invoice Simple

[App page](https://appshunter.io/ios/app/invoice-maker-invoice-simple/id694831622)

**Currently charting:** #9 Top Grossing · Business (US App Store)

Create and send professional invoices, estimates, and receipts quickly from your mobile device. This app helps individuals and growing businesses get organized, look professional, and get paid faster by accepting online payments.

**Highlights:** Create invoices, estimates, and receipts, Send documents via email, text, or WhatsApp, Accept online payments, Customize invoices with logo and business details, Track invoice status and get payment reminders, Organize client and product information

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essentials Monthly | $6.99 | per month |
| Mobile subscription | $10.99 | per month |
| Monthly Side Business | $10.99 | per month |
| Monthly Business Sub | $11.99 | per month |
| Monthly Subscription | $11.99 | per month |
| Monthly subscription | $13.49 | per month |
| Plus Monthly | $14.99 | per month |
| Monthly Standard Subscription | $17.99 | per month |
| Premium Monthly | $21.99 | per month |

**What reviewers like**

- 🚀 Easy to use
- 👍 Professional-looking invoices
- 🚀 Quick and simple
- 👍 Saves time
- 👍 Convenient mobile access

**What reviewers complain about**

- 💰 Expensive subscription
- 🐛 Glitches and bugs
- 🔀 Inconsistent features across platforms
- 🔀 Confusing navigation
- 🔀 Limited customization options

**Reported bugs**

- Invoices not sending properly
- App crashing or freezing
- Inability to recover deleted invoices
- Syncing issues between mobile and desktop

**Requested features**

- Add ability to rearrange line items
- Improve search and filtering capabilities
- Integrate with accounting software
- Add option to track expenses and profitability
- Allow multiple business profiles in one account


### Service Tech Work Orders Plus

[App page](https://appshunter.io/ios/app/service-tech-work-orders-plus/id849337035)

Manage field service operations with this comprehensive app. Schedule appointments, create professional invoices and estimates, track client information, and analyze financial data. All your business management tools in one place, offline.

**Highlights:** Client-focused scheduling, Professional invoicing and estimates, Contact management with direct communication, Inventory and labor tracking, Profit & Loss analysis, Offline data storage, Customizable document formats

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Messages & Reminders | $3.99 | one-time |
| Estimates Bids & Quotes 2 | $3.99 | one-time |
| Scheduler | $3.99 | one-time |
| Auto Service Calls | $4.99 | one-time |
| Cloud Sync Secure Data Sharing | $6.99 | one-time |
| Profits Expenses & PDF Reports | $6.99 | one-time |
| All Productivity In-Apps | $9.99 | one-time |
| Monthly Statements | $14.99 | one-time |
| Craftsman NCE Cost Book | $14.99 | one-time |
| Mac User Full License | $19.99 | one-time |


## Frequently asked questions

### Is Invoice Maker ▸ Invoice Simple free?

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

### Is Service Tech Work Orders Plus free?

Service Tech Work Orders Plus costs $7.99, and also offers in-app purchases.

### Which has better reviews, Invoice Maker ▸ Invoice Simple or Service Tech Work Orders Plus?

Invoice Maker ▸ Invoice Simple is rated higher. Invoice Maker ▸ Invoice Simple averages 4.9 out of 5 from 123K ratings, while Service Tech Work Orders Plus averages 4.2 from 13 ratings.

### Do Invoice Maker ▸ Invoice Simple or Service Tech Work Orders Plus have ads?

Neither Invoice Maker ▸ Invoice Simple nor Service Tech Work Orders Plus shows ads.

### Which is updated more often, Invoice Maker ▸ Invoice Simple or Service Tech Work Orders Plus?

Invoice Maker ▸ Invoice Simple ships an update every 9 days, and Service Tech Work Orders Plus every 3 months. Most recently, Invoice Maker ▸ Invoice Simple was updated on September 25, 2026 and Service Tech Work Orders Plus on September 17, 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.*