# # Simple Invoice vs Cyan

The clearest difference is update cadence: # Simple Invoice at every 8 days against Cyan's every 2 months. # Simple Invoice also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. # Simple Invoice sells 2 in-app purchases, starting at $1.99 per month and Cyan sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

# Simple Invoice ships an update every 8 days, Cyan every 2 months. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | # Simple Invoice | Cyan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 months |
| Size | 48 MB | 4 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [YUKI TANAIKE](https://appshunter.io/developer/478558546) | [Kenichi Saito](https://appshunter.io/developer/1861760912) |

## What reviewers say

### # Simple Invoice

[App page](https://appshunter.io/ios/app/simple-invoice/id6761528129)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Pro (Monthly) | $1.99 | per month |
| Invoice Pro (Annual) | $18.00 | per year |


### Cyan

[App page](https://appshunter.io/ios/app/cyan-trace/id6766050694)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $5.99 | per month |
| Annual | $29.99 | per year |


## Frequently asked questions

### Is # Simple Invoice free?

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

### Is Cyan free?

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

### Do # Simple Invoice or Cyan have ads?

Neither # Simple Invoice nor Cyan shows ads.

### Which is updated more often, # Simple Invoice or Cyan?

# Simple Invoice ships an update every 8 days, and Cyan every 2 months. Most recently, # Simple Invoice was updated on October 7, 2026 and Cyan on September 30, 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.*