# Billd Estimate & Invoice Maker vs Simple Invoice Maker

The clearest difference is update cadence: Billd Estimate & Invoice Maker at monthly against Simple Invoice Maker's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Billd Estimate & Invoice Maker sells 4 in-app purchases, starting at $2.99 per month and Simple Invoice Maker sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Billd Estimate & Invoice Maker ships an update monthly, Simple Invoice Maker every 6 months. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Billd Estimate & Invoice Maker | Simple Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Size | 17 MB | 32 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Abdulla Yasin](https://appshunter.io/developer/1407887788) | [William Phillips](https://appshunter.io/developer/898580562) |

## What reviewers say

### Billd Estimate & Invoice Maker

[App page](https://appshunter.io/ios/app/billd-estimate-and-invoice-maker/id6478083451)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month Pro | $2.99 | per month |
| Three Month | $5.99 | per 3 months |
| One Year | $17.99 | per year |
| Life time - One time | $24.99 | one-time |


### Simple Invoice Maker

[App page](https://appshunter.io/ios/app/simple-invoice-maker/id6748236727)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Invoice Maker Pro - Monthly | $0.99 | per month |
| Simple Invoice Maker Pro - Yearly | $9.99 | per year |


## Frequently asked questions

### Is Billd Estimate & Invoice Maker free?

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

### Is Simple Invoice Maker free?

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

### Do Billd Estimate & Invoice Maker or Simple Invoice Maker have ads?

Neither Billd Estimate & Invoice Maker nor Simple Invoice Maker shows ads.

### Which is updated more often, Billd Estimate & Invoice Maker or Simple Invoice Maker?

Billd Estimate & Invoice Maker ships an update monthly, and Simple Invoice Maker every 6 months. Most recently, Billd Estimate & Invoice Maker was updated on October 4, 2026 and Simple Invoice Maker on October 6, 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.*