# Billify vs Simple Invoice PDF

The clearest difference is update cadence: Simple Invoice PDF at fortnightly against Billify's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Billify sells 3 in-app purchases, starting at $6.99 per month and Simple Invoice PDF sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Billify ships an update every 2 months, Simple Invoice PDF fortnightly. Both last shipped on November 5, 2026.

## The numbers

| Metric | Billify | Simple Invoice PDF |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 2 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Abdul Rehman Khalid](https://appshunter.io/developer/1896331093) | [Serghei Eschin](https://appshunter.io/developer/6774241012) |

## What reviewers say

### Billify

[App page](https://appshunter.io/ios/app/billify-invoice-and-estimate/id6766847303)

Create professional invoices, estimates, and quotes with this app. Manage multiple business profiles, clients, and items, track payments, and generate client-ready PDFs. Offers over 100 templates for various industries.

**Highlights:** Professional invoice and estimate creation, Multiple business profiles, Client and item management, Payment tracking and reports, Over 100 professional templates, PDF export and sharing

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $6.99 | per month |
| Yearly Subscription | $19.99 | per year |
| LifeTime Plan | $35.99 | one-time |


### Simple Invoice PDF

[App page](https://appshunter.io/ios/app/simple-invoice-pdf/id6788337612)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Invoice Pro | $9.99 | one-time |


## Frequently asked questions

### Is Billify free?

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

### Is Simple Invoice PDF free?

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

### Do Billify or Simple Invoice PDF have ads?

Neither Billify nor Simple Invoice PDF shows ads.

### Which is updated more often, Billify or Simple Invoice PDF?

Billify ships an update every 2 months, and Simple Invoice PDF fortnightly. Most recently, Billify was updated on November 5, 2026 and Simple Invoice PDF 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.*