# Invoice Maker Simple Generator vs ShiftFlow

Invoice Maker Simple Generator and ShiftFlow both sit at 4.7 stars, but that hides the real split: 89% of ShiftFlow's written reviews are positive against 0% of Invoice Maker Simple Generator's. ShiftFlow also leads on ads (none vs shown) and ratings volume (2.3K vs 223). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. Invoice Maker Simple Generator sells 4 in-app purchases, starting at $1.99 per 7 days and ShiftFlow sells 13 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 — 4.7 for Invoice Maker Simple Generator against 4.8 for ShiftFlow. That said, the two scores are not equally well evidenced: ShiftFlow has 2.3K ratings behind it against 223, so its average is the more settled of the two. Written reviews are what separate them: 0% of Invoice Maker Simple Generator's written reviews are positive against 89% of ShiftFlow's.

Invoice Maker Simple Generator ships an update every 11 days, ShiftFlow every 3 weeks. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Invoice Maker Simple Generator | ShiftFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (223 ratings)](https://appshunter.io/ios/app/invoice-maker-simple-generator/id6451054831/reviews) | **[4.8 (2.3K ratings)](https://appshunter.io/ios/app/shiftflow-track-team-hours/id6466682008/reviews)** |
| Number of ratings | 223 | **2.3K** |
| Positive reviews | 0.0% of reviews | **88.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#191** |
| Size | 76 MB | 186 MB |
| Requires iOS | 15.3 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [3100 Michigan Apartments, L.P.](https://appshunter.io/developer/1856861664) | [Pixnbit Inc.](https://appshunter.io/developer/930234929) |

## What reviewers say

### 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 |


### ShiftFlow

[App page](https://appshunter.io/ios/app/shiftflow-track-team-hours/id6466682008)

**Currently charting:** #191 Top Grossing · Business (US App Store)

Streamline team time tracking and scheduling with a user-friendly system. Features include real-time clock-ins with GPS verification, smart shift planning, and easy timesheet exports. Simplify payroll and gain visibility into team hours.

**Highlights:** Real-time clock-ins with GPS verification, Smart shift scheduling and availability management, One-click timesheet exports (CSV/PDF), Job code and earnings tracking, Time off management, Team chat and messaging

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Personal Weekly | $1.99 | per 7 days |
| Personal Single User Monthly | $4.99 | per month |
| Team Monthly | $19.99 | per month |
| Team Monthly Welcome Offer | $19.99 | per month |
| Up to 5 Users Monthly | $24.99 | per month |
| Up to 10 Users Monthly | $49.99 | per month |
| Personal Yearly | $50.00 | per year |
| Personal Single User Yearly | $50.00 | per year |
| Up to 15 Users Monthly | $74.99 | per month |
| Up to 25 Users Monthly | $124.99 | per month |
| Team Annual Mid Trial Offer | $199.99 | per year |
| Team Annual | $199.99 | per year |
| Up to 5 Users Yearly | $250.00 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient time tracking
- 🔒 Secure with GPS and selfie check-in
- 💰 Helpful for payroll and invoicing
- 🤝 Enhances team collaboration and accountability

**What reviewers complain about**

- 🔒 Paywall after trial period
- 🐛 Occasional login and account issues
- 🔍 Lacking some advanced features (e.g. scheduling)

**Reported bugs**

- Login issues after extended use
- Discrepancies in estimated pay calculations

**Requested features**

- Calendar feature for scheduling shifts
- Mileage tracking functionality
- Improved group management and sharing


## Frequently asked questions

### Is Invoice Maker Simple Generator free?

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

### Is ShiftFlow free?

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

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

ShiftFlow is rated higher. Invoice Maker Simple Generator averages 4.7 out of 5 from 223 ratings, while ShiftFlow averages 4.8 from 2.3K ratings.

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

Invoice Maker Simple Generator shows ads; ShiftFlow does not.

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

Invoice Maker Simple Generator ships an update every 11 days, and ShiftFlow every 3 weeks. Most recently, Invoice Maker Simple Generator was updated on October 7, 2026 and ShiftFlow 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.*