# Learn Maya Numbers > App for learning and converting Maya numerals to decimal numbers. (iPhone/iPad app by Manfred Breede.) - Source: https://appshunter.io/ios/app/learn-maya-numbers/id839907009 (this page in markdown: same URL + `.md`) - Developer: [Manfred Breede](https://appshunter.io/developer/414696754) - Category: Education, Reference - Price: $0.99 - Rating: 3.00/5 from 2 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 1 MB - Languages: American English - Released: 2014-03-21 - Data updated: 2026-07-01 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/learn-maya-numbers/id839907009/reviews.md ## What is Learn Maya Numbers? Both, the Maya numeral system and decimal numbers are positional or place-value notations. There are two major differences: 1. In the decimal system each numeric position has a value that is a power of 10, whereas in the Mays numeral system each numeric position has a value that has a power 20. 2. In the decimal system place values increase from right to left, whereas in the Maya numeral system place values increase from the bottom to the top. This app simultaneously displays user generated Maya numbers and their equivalent decimal values at each place value, as well as the final decimal equivalencies for Maya numbers 1 to 1,279,999,999. ## Key features - Simultaneous display of Maya and decimal numbers - Visual comparison of place-value systems - Converts Maya numbers to decimal equivalents - Supports numbers up to 1,279,999,999 - Explains differences in positional notation ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/learn-maya-numbers/id839907009/reviews.md ### 5/5 — Conversion of 20 works *2015-03-13* I don't know if the other reviewer is referring to an older version, but I downloaded this app and it represented twenty as a shell in the zero column and a dot in the twenty column as I would expect. This app appears to me to work as advertised. You can convert from the decimal system to mayan or from mayan to decimal. Maximum representable number appears to be 1279999999. ### 1/5 — Not accurate *2015-02-21* While the representations from 1 to 19 are correct, the symbol shown for twenty is actually their "zero." The conversions totally ignore the Mayans' use of place value. I would not recommend this to my students. **Developer response:** Dear reviewer, I'm puzzled at your comment that my app "Learn Maya Numbers" does not represent the number 20 or for that matter the numbers 1 to 1,279,999,999 correctly. It appears to me that you don't know how to use the app. Please tap on the information button on the lower right corner of the screen to access instructions on the proper use of the app. Once you have verified that the app is in fact working correctly, I think it would only be fair for you to retract your negative review. Sincerely, Manfred Breede ## Frequently asked questions about Learn Maya Numbers ### What is the learning methodology of Learn Maya Numbers? Learn Maya Numbers utilizes a comparative approach, simultaneously displaying user-generated Maya numbers and their equivalent decimal values. It highlights the differences in their positional notation systems, aiding comprehension. ### How does Learn Maya Numbers track progress? The app focuses on direct conversion and comparison rather than traditional progress tracking. Users can practice converting various Maya numbers and see their decimal equivalents instantly. ### Does Learn Maya Numbers offer certifications? This application is designed for learning and exploration of the Maya numeral system and does not offer any formal certifications upon completion of its features. ### What is the price of Learn Maya Numbers? Learn Maya Numbers is available for a one-time purchase of $0.99. ### On which devices can I use Learn Maya Numbers? Learn Maya Numbers is supported on iPhone and iPod devices. ### How often is Learn Maya Numbers updated? The app was last updated on April 9, 2025, indicating recent development and maintenance by the developer. ### What do users like or dislike about Learn Maya Numbers? With a rating of 3.0 stars from 2 ratings, user sentiment is mixed. Specific feedback on likes or dislikes is not detailed in the provided data. ### Does Learn Maya Numbers have ads? No, Learn Maya Numbers does not contain advertisements. ## Version history (last 5 releases) ### 2.6 — 2025-04-09 Compatibility with latest iOS version. ### 2.5 — 2022-02-20 Compatibility with the latest iOS version. Minor user interface improvements. ### 2.4 — 2019-01-11 Compatibility with the latest iOS version. ### 2.3 — 2015-12-18 Fixed two overlapping UI elements. ### 2.2 — 2015-12-12 -Fixed an issue where starting with iOS 9.02 the app freezes on iPad devices when returning from the background. -Fixed an issue where with certain very large numbers the last decimal digit appears on the next line below. -Removed a label that reads "Result" and replaced it with a "+" symbol and a line above the sum of the columnar decimal addition. -Minor UI element placement improvements. ## Apps similar to Learn Maya Numbers | App | Rating | Price | Category | | --- | --- | --- | --- | | [Petroleum VCF Basic](https://appshunter.io/ios/app/petroleum-vcf-basic/id6475608625) | 5.0 (2) | Free | Education | | [Universal Numbers: Count to 1M](https://appshunter.io/ios/app/universal-numbers-count-to-1m/id6504361759) | 5.0 (4) | Free | Education | | [The Human Eye by EduTech Era](https://appshunter.io/ios/app/the-human-eye-by-edutech-era/id1538112420) | — | $1.99 | Education | | [Discover Permaculture](https://appshunter.io/ios/app/discover-permaculture/id6476144142) | — | Free | Education | | [Learn Petroleum Engineering](https://appshunter.io/ios/app/learn-petroleum-engineering/id6448697779) | 4.5 (4) | $1.99 | Education | | [Coronado USD](https://appshunter.io/ios/app/coronado-usd/id1576279461) | 5.0 (1) | Free | Education | ## More apps by Manfred Breede - [Basis Weight To Grammage](https://appshunter.io/ios/app/basis-weight-to-grammage/id416451122) - [Grammage To Basis Weight](https://appshunter.io/ios/app/grammage-to-basis-weight/id421703573) - [MWeight to GSM](https://appshunter.io/ios/app/mweight-to-gsm/id425910510) - [M Weight To Basis Weight](https://appshunter.io/ios/app/m-weight-to-basis-weight/id427500575) - [Paper Roll Length](https://appshunter.io/ios/app/paper-roll-length/id427724293) - [M-Weight Calculator](https://appshunter.io/ios/app/m-weight-calculator/id427808228) All apps by Manfred Breede: https://appshunter.io/developer/414696754 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-01.*