# Otlub Driver vs # Simple Purchase Order

The clearest difference is in-app purchases: Otlub Driver at none against # Simple Purchase Order's 2. Otlub Driver also leads on iOS requirement (12.0 vs 15.6). # Simple Purchase Order's advantage is ads (none vs shown) and update cadence (every 8 days vs every 5 weeks). On price 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. Otlub Driver asks for nothing beyond the download.

Otlub Driver ships an update every 5 weeks, # Simple Purchase Order every 8 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Otlub Driver | # Simple Purchase Order |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Size | 58 MB | 48 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pixelha](https://appshunter.io/developer/1738392537) | [YUKI TANAIKE](https://appshunter.io/developer/478558546) |

## What reviewers say

### Otlub Driver

[App page](https://appshunter.io/ios/app/otlub-driver/id6480306213)

**Features:** macOS Compatibility

**In-app purchases:** none


### # 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 |


## Frequently asked questions

### Is Otlub Driver free?

Otlub Driver is free to download, with no in-app purchases.

### Is # Simple Purchase Order free?

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

### Do Otlub Driver or # Simple Purchase Order have ads?

Otlub Driver shows ads; # Simple Purchase Order does not.

### Which is updated more often, Otlub Driver or # Simple Purchase Order?

Otlub Driver ships an update every 5 weeks, and # Simple Purchase Order every 8 days. Most recently, Otlub Driver was updated on October 7, 2026 and # Simple Purchase Order on October 12, 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.*