# LUCY Sounds vs InvoiceFlow

The clearest difference is ads: InvoiceFlow at none against LUCY Sounds's shown. InvoiceFlow also leads on update cadence (every 2 days vs every 2 weeks). LUCY Sounds's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price and in-app purchases there is nothing between them.

Both are free to download. LUCY Sounds sells 2 in-app purchases, starting at $9.00 per month and InvoiceFlow sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

LUCY Sounds ships an update every 2 weeks, InvoiceFlow every 2 days. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | LUCY Sounds | InvoiceFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/invoiceflow-estimate-maker/id6771705457/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 34 MB | 22 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Moshe Bareket](https://appshunter.io/developer/1839530771) | [Denis Mavels](https://appshunter.io/developer/1896011412) |

## What reviewers say

### LUCY Sounds

[App page](https://appshunter.io/ios/app/lucy-sounds/id6754930050)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Access | $9.00 | per month |
| Label Subscription | $79.00 | per month |


### InvoiceFlow

[App page](https://appshunter.io/ios/app/invoiceflow-estimate-maker/id6771705457)

Create professional invoices and estimates quickly for your service business. Organize client details, add job items, apply taxes, and generate polished PDF documents for easy sharing. Everything is stored on your device for offline access.

**Highlights:** Create invoices and estimates quickly, Manage client profiles, Add job items with details, Apply tax and discounts, Generate branded PDF documents, Share, print, or export PDFs, Edit saved documents

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $4.99 | per 7 days |
| Monthly Access | $14.99 | per month |


## Frequently asked questions

### Is LUCY Sounds free?

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

### Is InvoiceFlow free?

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

### Do LUCY Sounds or InvoiceFlow have ads?

LUCY Sounds shows ads; InvoiceFlow does not.

### Which is updated more often, LUCY Sounds or InvoiceFlow?

LUCY Sounds ships an update every 2 weeks, and InvoiceFlow every 2 days. Most recently, LUCY Sounds was updated on October 12, 2026 and InvoiceFlow on October 24, 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.*