# # Simple Purchase Order vs Synalux POS

The clearest difference is in-app purchases: Synalux POS at none against # Simple Purchase Order's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. # Simple Purchase Order sells 2 in-app purchases, starting at $1.99 per month. Synalux POS asks for nothing beyond the download.

# Simple Purchase Order ships an update every 8 days, Synalux POS fortnightly. The most recent releases landed on October 28, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | # Simple Purchase Order | Synalux POS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Fortnightly |
| Size | 48 MB | 2.2 GB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YUKI TANAIKE](https://appshunter.io/developer/478558546) | [Synalux LLC](https://appshunter.io/developer/1895881089) |

## What reviewers say

### # Simple Purchase Order

[App page](https://appshunter.io/ios/app/simple-purchase-order/id6761530119)

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

**In-app purchases (2)**

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


### Synalux POS

[App page](https://appshunter.io/ios/app/synalux-pos/id6777999853)

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

**In-app purchases:** none


## Frequently asked questions

### Is # Simple Purchase Order free?

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

### Is Synalux POS free?

Synalux POS is free to download, with no in-app purchases.

### Do # Simple Purchase Order or Synalux POS have ads?

Neither # Simple Purchase Order nor Synalux POS shows ads.

### Which is updated more often, # Simple Purchase Order or Synalux POS?

# Simple Purchase Order ships an update every 8 days, and Synalux POS fortnightly. Most recently, # Simple Purchase Order was updated on October 28, 2026 and Synalux POS on October 23, 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.*