Comparison

Happy Deads vs ez Math

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Happy Deads

Engage in a fun, casual zombie apocalypse with simple tap controls. Survive levels, achieve high scores, and collect coins to upgrade weapons and characters. Unlock new abilities and battle through a variety of zombie types.

Highlights
  • 30 levels with varied zombies
  • Over 300 missions
  • 20 characters with unique abilities
  • Numerous weapons and costumes
  • Simple tap controls
  • Coin collection for upgrades
Features
Read full description

Grab your weapons and survive a fun zombie apocalypse. It's harder than you think! Happy Deads is a super casual zombie shooter with simple tap controls. The goal is to survive for as long as possible or achieve the highest score. Kill as many zombies as you can to collect coins to buy and upgrade your stuff. FEATURES • Fight a variety of zombies in 30 levels • 300+ crazy missions • 20 hilarious characters with unique abilities • Tons of insane weapons and costumes SUBSCRIPTION AND TERM In our game we have the following subscription length: 1. Weekly Membership offers you a weekly subscription for $4.99 after 3-day free trial for unlocking VIP keys, VIP weapons and VIP characters. Also the subscription will provide 10,000 Coins and 50 Gems on a daily basis. Moreover, we will remove all pop-ups and banner ads for your better game experience. 2. Monthly Membership offers you a monthly subscription for $19.99 for unlocking VIP keys, VIP weapons and VIP characters. Also the subscription will provide 10,000 Coins and 100 Gems on a daily basis. Moreover, we will remove all pop-ups and banner ads for your better game experience. 3. Yearly Membership offers you a yearly subscription for $99.99 for unlocking VIP keys, VIP weapons and VIP characters. Also the subscription will provide 10,000 Coins and 100 Gems on a daily basis. Moreover, we will remove all pop-ups and banner ads for your better game experience. End of trial and subscription renewal This price is for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. The account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Canceling trial or subscription You can turn off the auto-renew for the subscription whenever you want to through iTunes account. Check https://support.apple.com/HT202039. When your current trial/subscription period expires, you will be unsubscribed. The current active subscription period cannot be canceled. After your subscription expires, you will no longer be able to use elements offered in your chosen Subscription Option. If you have any questions or comments, feel free to contact us at support@picsoftstudios.com Privacy Policy: https://sites.google.com/view/picsoft-privacy-policy Terms of Use: https://sites.google.com/view/picsoft-terms-of-use

About

ez Math

This game sharpens your mental math skills with various modes and difficulty levels. It offers quick challenges to improve calculation speed in an engaging way.

Highlights
  • Fast calculation training
  • Multiple game modes
  • Adjustable difficulty levels
  • Customizable challenges
  • Easy to learn gameplay
Features
Read full description

ez Math - Learn Faster is a smart & easy game that trains fast calculation ability. The game offers many game modes with different difficulty levels. Mode: • Yes or No. • Choose A/B/C. Level: • Easy. • Medium. • Hard. • Custom. - Facebook : www.facebook.com/PiEntertaimentLLC/ - Feedback : mypientertainment@gmail.com

Screenshots

Happy Deads4 screens
ez Math4 screens

Verdict

The call

The clearest difference is in-app purchases: ez Math at none against Happy Deads's 10. ez Math also leads on rating (5.0 vs 4.7). Happy Deads's advantage is ratings volume (78 vs 1) and iOS requirement (9.0 vs 15.6). On price, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Happy Deads sells 10 in-app purchases, starting at $4.99 per 7 days. ez Math asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ez Math holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Happy Deads has 78 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

Scorecard5 real differences · 5 level
Happy Deads versus ez Math: the parameters behind the verdict, then further details
ParameterHappy Deadsez Math
PriceFreeFree
Rating4.7 (78 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings78 — better1
Update frequencyEvery 3 daysEvery 3 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.6
Further details — not scored
Size64 MB19 MB
Age rating12+4+
DeveloperPicsoft Co., Ltd.Pham Huu Phuong

Customer experience

Happy Deads

All ratings79 ratings
Positive94.9%
Neutral1.3%
Negative3.8%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

ez Math

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Happy Deads

Subscriptions1
  • Diamond Membership (Weekly)3 Days trial$4.997 Days
One-time9
  • Pinch of Gems$0.99
  • Pinch of Coins$0.99
  • Starter Pack$0.99
Show 6 more
  • Baseball Bat$0.99
  • Gold Pistol$1.99
  • Mjolnir$2.99
  • Thor$2.99
  • Alien Blaster$3.99
  • Ultimate Gauntlet$4.99
None

ez Math

No in-app purchases

Questions

Is Happy Deads free?
Happy Deads is free to download, with in-app purchases available.
Is ez Math free?
ez Math is free to download, with no in-app purchases.
Which has better reviews, Happy Deads or ez Math?
ez Math is rated higher. Happy Deads averages 4.7 out of 5 from 78 ratings, while ez Math averages 5.0 from 1 ratings.
Do Happy Deads or ez Math have ads?
Neither Happy Deads nor ez Math shows ads.
Which is updated more often, Happy Deads or ez Math?
Happy Deads ships an update every 3 days, and ez Math every 3 days. Most recently, Happy Deads was updated on October 24, 2026 and ez Math on October 19, 2026.

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