Anzan Expert4.2.0 - App Store
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Publisher Description
Ever find that "6 + 9" is easy, but "7 + 9" feels tricky?
Do you struggle with certain number combinations? I did! As the author of this app, I used to find combinations involving 8 or 9 particularly challenging. I also found it difficult to quickly calculate prices while shopping.
That's why I created this flash calculation app - to improve my own mental math skills! And while developing and testing it, I've already noticed a real improvement in my addition skills. I'm confident you'll see a boost in your own mental math abilities too!
I hope you have fun and enjoy your challenges!
HOW TO US
Numbers flash on the screen at a set interval. Add them up in your head!
STAGES
There are 20 stages, each combining one of 5 different digit lengths (1 to 5 digits) with one of 4 flash intervals (6, 3, 1, and 0.5 seconds).
The most challenging stage is 5 digits with a 0.5-second interval - a true test of your skills! If you ever reach that level, you'll be a real "expert"!
Each stage has a unique name.
- 1 digit, 6-second interval: "Shell" stage
- 1 digit, 3-second interval: "Prawn" stage
- 1 digit, 1-second interval: "Turtle" stage
and so on...
EXPERT MEDALS AND LEVELS
Earn an expert medal for each stage by answering correctly 5 times in a row at that stage. Your current level is determined by the highest-level stage where you've earned a medal.
How far can you go? Find out now!
PRACTICE
Unlike the timed challenges, you can advance at your own pace by tapping the buttons. Easily switch between numbers, review previous values, and practice as much as you like until you feel confident and ready to ace the challenges!
REVIEW
After each challenge, review the numbers you just worked on. Practice the questions you missed until you can solve them correctly within the time limit.
OTHER USEFUL FEATURES
- Register multiple challengers so that the whole family can enjoy the app on a single device!
- Customize the look with multiple colorful themes - great for distinguishing each challenger!
- Share your success! Post your challenge results with a photo on social media.
Version History - Improved and fixed UI and app behavior.
- Internal updates. 4.2.0 09/05/2025 New feature: Watch a video ad to disable post-challenge full-screen ads for 10 minutes!
We've also made the following changes:
- Now requires iOS 15 or above.
- Tweaked UI and behavior.
- Updated icons with support for new formats.
- Overhauled English text throughout the app (including some level name translations).
- Fixed incorrect digit count in shared text.
- Addressed other minor bugs.
- Implemented internal improvements and updates. 4.1.0 06/11/2025 - Add the "History" tab to the challenge records screen
- Change the minimum number of values from 7 to 6
- Remove the save/cancel buttons from the settings screen
- Add a button to the records screen to open the sheet to switch/remove challengers
- Switching/removing a challenger no longer brings you back to home
- Change the fonts
- Improve the layout of buttons in the practice screen
- Tweak the UI and improve the internals a lot 4.0.0 03/04/2024 - Shows the user's nickname as the title of the records page.
- Internal updates and improvements.
- Added a button to modify consent to settings page (only for users in EEA). 3.1.0 01/15/2024 - Fixed the bug that made it unable to add challengers
- Internal improvements 3.0.1 08/31/2023 - Removed the backend server
- Removed settings of country/region and birth year
- Tweaked the UI
- Improved stability by internal updates and bug fixes 3.0.0 08/30/2023 - New feature to set number of numbers
- Smoother transition of numbers in practice page
- All challengers can be removed
- Fix challenge page mistakenly showing dark background
- Many internal improvements
- Visual and internal fixes 2.0.0 03/22/2022 Thank you for using the app!
Ver 1.1.3
- Some visual tweaks
- Internal updates
- Better app stability
- A lot of minor improvements
Ver 1.1.2
- Fix the bug of "Quit" sometimes not stopping the challenge properly
Ver 1.1.1
- Use eye-friendly darker colors
- Show "Quit" for a while in challenge
- Enable sounds for new users by default
- Minor visual improvements
- Internal updates 1.1.3 05/16/2021 Thank you for using the app!
Ver 1.1.2
- Fix the bug of "Quit" sometimes not stopping the challenge properly
Ver 1.1.1
- Use eye-friendly darker colors
- Show "Quit" for a while in challenge
- Enable sounds for new users by default
- Minor visual improvements
- Internal updates
Ver 1.1.0
- Reduce number of values in challenge/practice from 10 to 7
- Add sound effects
- Add button for quitting review
etc. 1.1.2 01/17/2021 Thank you for using the app!
Ver 1.1.1
- Use eye-friendly darker colors
- Show "Quit" for a while in challenge
- Enable sounds for new users by default
- Minor visual improvements
- Internal updates
Ver 1.1.0
- Reduce number of values in challenge/practice from 10 to 7
- Add sound effects
- Add button for quitting review
- Add "Recent updates" screen
- Minor improvements and fixes 1.1.1 01/16/2021 v1.1.0
Important changes
- Reduce number of values in challenge/practice from 10 to 7
- Add sound effects
(You can turn them off on the Settings screen)
- Add button for quitting review
- Add "Recent updates" screen
Minor improvements and fixes
- Improve descriptions and colors
- Many internal improvements
- Minor bug fixes 1.1.0 12/17/2020 1.0.0 10/17/2020
About Anzan Expert
The company that develops Anzan Expert is Moss (Japan). The latest version released by its developer is 4.2.0.
To install Anzan Expert on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-13 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Anzan Expert as malware if the download link is broken.
How to install Anzan Expert on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Anzan Expert is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Anzan Expert is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 4.2.0
posted on 2026-10-13
Version History - Improved and fixed UI and app behavior.
- Internal updates. 4.2.0 09/05/2025 New feature: Watch a video ad to disable post-challenge full-screen ads for 10 minutes!
We've also made the following changes:
- Now requires iOS 15 or above.
- Tweaked UI and behavior.
- Updated icons with support for new formats.
- Overhauled English text throughout the app (including some level name translations).
- Fixed incorrect digit count in shared text.
- Addressed other minor bugs.
- Implemented internal improvements and updates. 4.1.0 06/11/2025 - Add the "History" tab to the challenge records screen
- Change the minimum number of values from 7 to 6
- Remove the save/cancel buttons from the settings screen
- Add a button to the records screen to open the sheet to switch/remove challengers
- Switching/removing a challenger no longer brings you back to home
- Change the fonts
- Improve the layout of buttons in the practice screen
- Tweak the UI and improve the internals a lot 4.0.0 03/04/2024 - Shows the user's nickname as the title of the records page.
- Internal updates and improvements.
- Added a button to modify consent to settings page (only for users in EEA). 3.1.0 01/15/2024 - Fixed the bug that made it unable to add challengers
- Internal improvements 3.0.1 08/31/2023 - Removed the backend server
- Removed settings of country/region and birth year
- Tweaked the UI
- Improved stability by internal updates and bug fixes 3.0.0 08/30/2023 - New feature to set number of numbers
- Smoother transition of numbers in practice page
- All challengers can be removed
- Fix challenge page mistakenly showing dark background
- Many internal improvements
- Visual and internal fixes 2.0.0 03/22/2022 Thank you for using the app!
Ver 1.1.3
- Some visual tweaks
- Internal updates
- Better app stability
- A lot of minor improvements
Ver 1.1.2
- Fix the bug of "Quit" sometimes not stopping the challenge properly
Ver 1.1.1
- Use eye-friendly darker colors
- Show "Quit" for a while in challenge
- Enable sounds for new users by default
- Minor visual improvements
- Internal updates 1.1.3 05/16/2021 Thank you for using the app!
Ver 1.1.2
- Fix the bug of "Quit" sometimes not stopping the challenge properly
Ver 1.1.1
- Use eye-friendly darker colors
- Show "Quit" for a while in challenge
- Enable sounds for new users by default
- Minor visual improvements
- Internal updates
Ver 1.1.0
- Reduce number of values in challenge/practice from 10 to 7
- Add sound effects
- Add button for quitting review
etc. 1.1.2 01/17/2021 Thank you for using the app!
Ver 1.1.1
- Use eye-friendly darker colors
- Show "Quit" for a while in challenge
- Enable sounds for new users by default
- Minor visual improvements
- Internal updates
Ver 1.1.0
- Reduce number of values in challenge/practice from 10 to 7
- Add sound effects
- Add button for quitting review
- Add "Recent updates" screen
- Minor improvements and fixes 1.1.1 01/16/2021 v1.1.0
Important changes
- Reduce number of values in challenge/practice from 10 to 7
- Add sound effects
(You can turn them off on the Settings screen)
- Add button for quitting review
- Add "Recent updates" screen
Minor improvements and fixes
- Improve descriptions and colors
- Many internal improvements
- Minor bug fixes 1.1.0 12/17/2020 1.0.0 10/17/2020
version 4.2.0
posted on 2025-09-05
- Improved and fixed UI and app behavior.
- Internal updates.
version 4.2.0
posted on 2025-09-05
Sep 5, 2025
Version 4.2.0
- Improved and fixed UI and app behavior.
- Internal updates.
version 4.1.0
posted on 2025-06-11
Jun 11, 2025
Version 4.1.0
New feature: Watch a video ad to disable post-challenge full-screen ads for 10 minutes!
We've also made the following changes:
- Now requires iOS 15 or above.
- Tweaked UI and behavior.
- Updated icons with support for new formats.
- Overhauled English text throughout the app (including some level name translations).
- Fixed incorrect digit count in shared text.
- Addressed other minor bugs.
- Implemented internal improvements and updates.
version 4.0.0
posted on 2024-03-04
Mar 4, 2024
Version 4.0.0
- Add the "History" tab to the challenge records screen
- Change the minimum number of values from 7 to 6
- Remove the save/cancel buttons from the settings screen
- Add a button to the records screen to open the sheet to switch/remove challengers
- Switching/removing a challenger no longer brings you back to home
- Change the fonts
- Improve the layout of buttons in the practice screen
- Tweak the UI and improve the internals a lot
version 3.1.0
posted on 2024-01-15
Jan 15, 2024
Version 3.1.0
- Shows the user's nickname as the title of the records page.
- Internal updates and improvements.
- Added a button to modify consent to settings page (only for users in EEA).
version 3.0.1
posted on 2023-08-31
Aug 31, 2023
Version 3.0.1
- Fixed the bug that made it unable to add challengers
- Internal improvements
Disclaimer
Official App Store Link
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