# Fly Inventory vs Simple Inventory Stock Tracker

The clearest difference is in-app purchases: Fly Inventory at none against Simple Inventory Stock Tracker's 2. Fly Inventory also leads on ads (none vs shown). Simple Inventory Stock Tracker's advantage is update cadence (every 4 days vs every 4 months) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Simple Inventory Stock Tracker sells 2 in-app purchases, starting at $7.99 per month. Fly Inventory asks for nothing beyond the download.

Fly Inventory ships an update every 4 months, Simple Inventory Stock Tracker every 4 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fly Inventory | Simple Inventory Stock Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 4 days** |
| Size | 61 MB | 82 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cole Thomas](https://appshunter.io/developer/1533524915) | [CodeCross](https://appshunter.io/developer/1660793254) |

## What reviewers say

### Fly Inventory

[App page](https://appshunter.io/ios/app/fly-inventory/id1545275481)

**In-app purchases:** none


### Simple Inventory Stock Tracker

[App page](https://appshunter.io/ios/app/simple-inventory-stock-tracker/id6763957571)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $7.99 | per month |
| Yearly Premium | $59.99 | per year |


## Frequently asked questions

### Is Fly Inventory free?

Fly Inventory is free to download, with no in-app purchases.

### Is Simple Inventory Stock Tracker free?

Simple Inventory Stock Tracker is free to download, with in-app purchases available.

### Do Fly Inventory or Simple Inventory Stock Tracker have ads?

Simple Inventory Stock Tracker shows ads; Fly Inventory does not.

### Which is updated more often, Fly Inventory or Simple Inventory Stock Tracker?

Fly Inventory ships an update every 4 months, and Simple Inventory Stock Tracker every 4 days. Most recently, Fly Inventory was updated on October 27, 2026 and Simple Inventory Stock Tracker on October 25, 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.*