Quick mental calculation vs Downtown Battle Days
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Quick mental calculation
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Game to enter within a certain period of time the answer of mental arithmetic calculations will appear on the exam. Many times in a row you can do correct? It is a challenge to the rankings!
Downtown Battle Days
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A new smartphone game set in a Showa-era retro downtown, featuring epic battles between delinquents, has arrived! Fight the outlaws in battles to gain experience, money, and equipment, and strengthen your character with items from shops and gear! Battle Enjoy exhilarating action with simple controls in a nostalgic belt-scroll format! Use attacks, dodges, and skills to beat down the delinquents and race through the stages! When your MP is full, unleash a powerful special move! Equipment Equip weapons and accessories obtained in battles! Each piece of equipment can have up to three random skill effects from over 30 types. Hunt down the delinquents and find the ultimate gear unique to you! Shop Level up in battles and train your character at the shop! There are five types of abilities, and training them will give you an edge in battles! Characters There are five characters you can control! With a variety of weapons like sneakers, wooden swords, gloves, iron pipes, and yoyos, find your favorite character! Story Delinquents run wild in a Showa-era industrial town! What if your territory is taken? Time for a counterattack. Train your weapons and gear to prepare for battle. The enemies won't stay quiet either. From fire-breathing bikers to divers summoning turtles, an outlandish outlaw gang awaits you. Get ready for some wild action! Rock 'n' roll!!
Screenshots
Verdict
The clearest difference is in-app purchases: Quick mental calculation at none against Downtown Battle Days's 1. Quick mental calculation also leads on update cadence (every 11 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Downtown Battle Days sells 1 one-off in-app purchase. Quick mental calculation asks for nothing beyond the download.
Quick mental calculation ships an update every 11 days, Downtown Battle Days every 2 months. The most recent releases landed on September 29, 2026 and October 8, 2026 respectively.
| Parameter | Quick mental calculation | Downtown Battle Days |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days โ better | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 12.0 | 12.0 |
| Further details โ not scored | ||
| Size | 21 MB | 248 MB |
| Age rating | 4+ | 12+ |
| Developer | ERX | D.H Inc. |
In-app purchases
Quick mental calculation
No in-app purchases
Downtown Battle Days
- No AD Pack$0.49
Questions
Is Quick mental calculation free?
Is Downtown Battle Days free?
Do Quick mental calculation or Downtown Battle Days have ads?
Which is updated more often, Quick mental calculation or Downtown Battle Days?
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