# Simple Invoice Maker Generator vs Unitkeeper

The clearest difference is in-app purchases: Unitkeeper at none against Simple Invoice Maker Generator's 3. Unitkeeper also leads on ads (none vs shown). Simple Invoice Maker Generator's advantage is iOS requirement (15.0 vs 18.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Simple Invoice Maker Generator sells 3 in-app purchases, starting at $2.99 per 7 days. Unitkeeper asks for nothing beyond the download.

Simple Invoice Maker Generator ships an update every 3 weeks, Unitkeeper every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Simple Invoice Maker Generator | Unitkeeper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/simple-invoice-maker-generator/id6717593349/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 142 MB | 49 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GULNUR DUZGUN](https://appshunter.io/developer/1770469191) | [Thirtieth Technologies Inc.](https://appshunter.io/developer/1439223212) |

## What reviewers say

### Simple Invoice Maker Generator

[App page](https://appshunter.io/ios/app/simple-invoice-maker-generator/id6717593349)

Quickly create and send professional invoices and estimates for your business. Track payments and expenses with smart receipt generation and automatic calculations. Ideal for freelancers, contractors, and small businesses.

**Highlights:** Create professional invoices, Generate estimates, Track payments, Manage expenses, Smart receipt generation, Automatic calculations

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essential Pack Subscription | $2.99 | per 7 days |
| Essential Pack Subscription | $4.99 | per month |
| Essential Pack Subscription | $39.99 | per year |


### Unitkeeper

[App page](https://appshunter.io/ios/app/unitkeeper/id6761386070)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Invoice Maker Generator free?

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

### Is Unitkeeper free?

Unitkeeper is free to download, with no in-app purchases.

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

Simple Invoice Maker Generator shows ads; Unitkeeper does not.

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

Simple Invoice Maker Generator ships an update every 3 weeks, and Unitkeeper every 10 days. Most recently, Simple Invoice Maker Generator was updated on October 30, 2026 and Unitkeeper on October 31, 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.*