# QI vs Invoice maker, invoice simple

The clearest difference is rating: Invoice maker, invoice simple at 4.9 against QI's 4.6. QI's advantage is update cadence (weekly vs fortnightly) and iOS requirement (13.0 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. QI sells 2 in-app purchases, starting at $3.99 per month and Invoice maker, invoice simple sells 6 in-app purchases, starting at $5.99 per month. 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 4.6. Both are backed by a comparable volume of ratings — 22 and 12 respectively.

QI ships an update weekly, Invoice maker, invoice simple fortnightly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | QI | Invoice maker, invoice simple |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (22 ratings)](https://appshunter.io/ios/app/qi-invoice-and-estimate-maker/id1418743367/reviews) | **[4.9 (12 ratings)](https://appshunter.io/ios/app/invoice-maker-invoice-simple/id6670348765/reviews)** |
| Number of ratings | **22** | 12 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Freemium | Free with in-app purchases |
| Size | 21 MB | 60 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Miguel Munoz](https://appshunter.io/developer/338839080) | [英 黄](https://appshunter.io/developer/1765176622) |

## What reviewers say

### QI

[App page](https://appshunter.io/ios/app/qi-invoice-and-estimate-maker/id1418743367)

This app helps self-employed individuals and freelancers track work hours, manage projects, and generate professional invoices and estimates. Customize invoices with your logo and colors, and export reports in CSV format for clients or accountants.

**Highlights:** Track working time across multiple projects, Generate custom invoices with logo and colors, Export reports in CSV format, Support for 23 languages, Set monthly billing goals, Secure project hiding with Touch ID/Face ID

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quick invoices & estimates | $3.99 | per month |
| Quick invoice PDF maker | $33.99 | per year |


### Invoice maker, invoice simple

[App page](https://appshunter.io/ios/app/invoice-maker-invoice-simple/id6670348765)

This app simplifies invoice creation, sending, and tracking for freelancers and small businesses. It offers professional templates, automatic calculations, and due date reminders to streamline billing and improve cash flow. Manage estimates and receipts efficiently with cross-device synchronization.

**Highlights:** Diverse invoice templates, Invoice status tracking, Smart due date reminders, Create invoices anywhere, Automatic calculations & tax handling, Export and share invoices, Estimate maker & receipts

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership with discount | $5.99 | per month |
| Monthly Membership | $6.99 | per month |
| Yearly Pro - 30% Off | $34.99 | per year |
| Yearly Membership | $49.99 | per year |
| Invoice Pro for Lifetime | $79.99 | one-time |
| Lifetime_original | $109.99 | one-time |


## Frequently asked questions

### Is QI free?

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

### Is Invoice maker, invoice simple free?

Invoice maker, invoice simple is free to download, with in-app purchases available.

### Which has better reviews, QI or Invoice maker, invoice simple?

Invoice maker, invoice simple is rated higher. QI averages 4.6 out of 5 from 22 ratings, while Invoice maker, invoice simple averages 4.9 from 12 ratings.

### Do QI or Invoice maker, invoice simple have ads?

Neither QI nor Invoice maker, invoice simple shows ads.

### Which is updated more often, QI or Invoice maker, invoice simple?

QI ships an update weekly, and Invoice maker, invoice simple fortnightly. Most recently, QI was updated on October 24, 2026 and Invoice maker, invoice simple on October 28, 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.*