# Markov Algorithm vs Inventory Management Counter

The clearest difference is iOS requirement: Inventory Management Counter at 13.0 against Markov Algorithm's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Markov Algorithm sells 3 in-app purchases, starting at $3.99 per month and Inventory Management Counter sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Markov Algorithm ships an update every 5 weeks, Inventory Management Counter every 2 months. The most recent releases landed on September 15, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Markov Algorithm | Inventory Management Counter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/markov-algorithm/id1427691412/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 40 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Konstantin Mishukov](https://appshunter.io/developer/1164017853) | [ryo muranaka](https://appshunter.io/developer/1606480078) |

## What reviewers say

### Markov Algorithm

[App page](https://appshunter.io/ios/app/markov-algorithm/id1427691412)

This tool emulates a Markov Machine, a string rewriting system used in computer science. It helps students test and debug algorithms with grammar-like rules and a step-by-step execution log.

**Highlights:** Markov Machine emulator, String rewriting system, Grammar-like rule application, Step-by-step debugging, Execution log

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium: Monthly | $3.99 | per month |
| Premium: Annual | $14.99 | per year |
| Lifetime access | $19.99 | one-time |


### Inventory Management Counter

[App page](https://appshunter.io/ios/app/inventory-management-counter/id6742074735)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $2.99 | per month |
| Annual subscription | $17.99 | per year |


## Frequently asked questions

### Is Markov Algorithm free?

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

### Is Inventory Management Counter free?

Inventory Management Counter is free to download, with in-app purchases available.

### Do Markov Algorithm or Inventory Management Counter have ads?

Neither Markov Algorithm nor Inventory Management Counter shows ads.

### Which is updated more often, Markov Algorithm or Inventory Management Counter?

Markov Algorithm ships an update every 5 weeks, and Inventory Management Counter every 2 months. Most recently, Markov Algorithm was updated on September 15, 2026 and Inventory Management Counter on September 19, 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.*