# Catalyst Database vs Invoice Maker

The clearest difference is in-app purchases: Catalyst Database at none against Invoice Maker's 3. Catalyst Database also leads on ads (none vs shown). Invoice Maker's advantage is update cadence (every 5 days vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Invoice Maker sells 3 in-app purchases, starting at $9.99 per 7 days. Catalyst Database asks for nothing beyond the download.

Catalyst Database ships an update every 4 months, Invoice Maker every 5 days. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Catalyst Database | Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/invoice-maker-estimates/id6753343850/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 65 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SoftwareStudio Sp. z o.o.](https://appshunter.io/developer/1459352818) | [METKO LABS BILISIM ITHALAT VE IHRACAT TICARET LIMITED SIRKETI](https://appshunter.io/developer/1671640855) |

## What reviewers say

### Catalyst Database

[App page](https://appshunter.io/ios/app/catalyst-database/id1467731708)

**Features:** macOS Compatibility

**In-app purchases:** none


### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-estimates/id6753343850)

Create professional invoices and estimates quickly with this app. Manage clients, track payments, and generate PDF reports. Offers customizable templates and global business features.

**Highlights:** Create professional invoices and estimates, Add line items with discounts and tax, Convert estimates to invoices, Export and share as PDFs, Manage clients and track payments, Dashboard with revenue stats, Global business features

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Generator | $9.99 | per 7 days |
| Invoice Generator | $29.99 | per month |
| Invoice Generator | $59.99 | per year |


## Frequently asked questions

### Is Catalyst Database free?

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

### Is Invoice Maker free?

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

### Do Catalyst Database or Invoice Maker have ads?

Invoice Maker shows ads; Catalyst Database does not.

### Which is updated more often, Catalyst Database or Invoice Maker?

Catalyst Database ships an update every 4 months, and Invoice Maker every 5 days. Most recently, Catalyst Database was updated on November 11, 2026 and Invoice Maker on November 5, 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.*