Markov Algorithm vs OpenApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Markov Algorithm
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.
- Markov Machine emulator
- String rewriting system
- Grammar-like rule application
- Step-by-step debugging
- Execution log
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Students of computer science are probably familiar with Markov algorithm. A string rewriting system that uses grammar-like rules to operate on strings of symbols. This application is a great Markov Machine emulator which can help you test your algorithms and debug it step-by-step using convenient execution log. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
OpenApp
Control your garage doors, gates, and office entry points remotely with a single application. Grant temporary or permanent access to family and friends from anywhere in the world.
- Remote garage door control
- Gate and office entry management
- Access sharing with time limits
- Control from any location
- Keycard replacement
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Remote for your garage doors, front gate, tag to enter flat, keycard to enter office - those are all things you need to carry with you all day. Replace them all with one handy app. After downloading OpenApp and installing our custom device to your office/home installation, you can start controlling all those entry points from any place in the world. You can also share access with your family. You can give your friend access for 24 hours or surprise your business guests by giving them access to your office for a limited time.
Screenshots
Verdict
The clearest difference is rating: Markov Algorithm at 5.0 against OpenApp's 1.0. OpenApp's advantage is in-app purchases (none vs 3). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Markov Algorithm sells 3 in-app purchases, starting at $3.99 per month. OpenApp asks for nothing beyond the download.
Markov Algorithm holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
Markov Algorithm ships an update every 5 weeks, OpenApp every 2 months. The most recent releases landed on September 15, 2026 and September 24, 2026 respectively.
| Parameter | Markov Algorithm | OpenApp |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 8 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Konstantin Mishukov | Sensi Labs Sp. z o.o. |
Customer experience
Markov Algorithm
OpenApp
In-app purchases
Markov Algorithm
- Premium: Monthly3 Days trial$3.991 Month
- Premium: Annual$14.991 Year
- Lifetime access$19.99
OpenApp
No in-app purchases
