# Atlas vs Stack Invoice

The clearest difference is update cadence: Stack Invoice at every 5 days against Atlas's monthly. Atlas's advantage is iOS requirement (13.4 vs 16.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Atlas against 5.0 for Stack Invoice. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Atlas ships an update monthly, Stack Invoice every 5 days. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Atlas | Stack Invoice |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/atlas-inventory/id6452192318/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/stack-invoice/id6755344078/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free | Free |
| Size | 21 MB | 82 MB |
| Requires iOS | **13.4** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Cotton Holdings Inc.](https://appshunter.io/developer/1572691150) | [GrayCrest Technologies Limited](https://appshunter.io/developer/1833810707) |

## What reviewers say

### Atlas

[App page](https://appshunter.io/ios/app/atlas-inventory/id6452192318)

This app simplifies asset tracking and management with real-time updates and comprehensive insights. It allows for seamless transfers between users, assets, locations, and projects within a secure interface.

**Highlights:** Asset tracking, Asset management, Seamless transfers, Real-time updates, Comprehensive insights, Secure interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Stack Invoice

[App page](https://appshunter.io/ios/app/stack-invoice/id6755344078)

Manage your business inventory and create professional invoices on the go. Track stock levels, add product details, and generate custom invoices quickly. Share them instantly via email or messaging apps to get paid faster.

**Highlights:** Inventory Management, Real-Time Stock Tracking, Professional Invoice Generation, Client Management, Fast Sharing Options, Offline Support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Atlas free?

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

### Is Stack Invoice free?

Stack Invoice is free to download, with no in-app purchases.

### Which has better reviews, Atlas or Stack Invoice?

Atlas and Stack Invoice are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Atlas or Stack Invoice have ads?

Neither Atlas nor Stack Invoice shows ads.

### Which is updated more often, Atlas or Stack Invoice?

Atlas ships an update monthly, and Stack Invoice every 5 days. Most recently, Atlas was updated on October 2, 2026 and Stack Invoice on October 11, 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.*