Comparison

Shake Judge vs ○× Buzzer

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

Head to head
About

Shake Judge

Features
Read full description

If you shake it, you will make a sound! Ping Pong Ping Pong! Boo Boo! ■ How to use There is a YES / NO screen in the initial setting. You can switch by swiping horizontally. If you shake the terminal while the YES screen is displayed, you will make a ping-pong ping-pong sound. If you shake the terminal with the NO screen displayed, you will make a boo-boo sound. By the way, even if you tap the character part, the sound will be made. You can also customize it in the settings. ・ Tutorial display / non-display ・ Function to prevent continuous sound ・ Change the background color ・ Change text ・ Change the sound ■ How to enjoy For example, when taking a quiz with someone you know. You can easily give the correct and incorrect answers to the quiz by sound. For example, when you want to teach your child what is good and what is not. If you do good things, ring a ping pong. if you do bad things, ring a boo boo, It may be easy to impress children. Please enjoy it in various ways. ■ Another way to enjoy With this application, you can record and use voice. Since the text can be changed freely, not only the judgment but also "Funny", "Stop", etc. You can use it freely. It might be even more fun if you record your friend's voice and use it. ■ Notes Please cooperate in avoiding acts that may cause inconvenience to people, such as making noises. ■ Function ・ Shake to make a sound ・ Press the button to make a sound ・ Change color ・ Sound change ・ Change text ・ Make sound

About

○× Buzzer

Features
Read full description

"○× Buzzer" is an app that displays a correct "○" and makes a "ping pong" sound, and displays an incorrect "×" and makes a "beep" sound. It can also be controlled using your Apple Watch.

Screenshots

Shake Judge4 screens
○× Buzzer1 screens

Verdict

The call

The clearest difference is update cadence: ○× Buzzer at weekly against Shake Judge's every 5 months. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Shake Judge ships an update every 5 months, ○× Buzzer weekly. The most recent releases landed on September 8, 2026 and September 19, 2026 respectively.

Scorecard1 real difference · 5 level
Shake Judge versus ○× Buzzer: the parameters behind the verdict, then further details
ParameterShake Judge○× Buzzer
PriceFreeFree
Update frequencyEvery 5 monthsWeekly — better
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.614.0 — better
Further details — not scored
Size9 MB10 MB
Age rating4+4+
DeveloperYusaku MakiLegal Prompt Inc.

In-app purchases

None

Shake Judge

No in-app purchases

None

○× Buzzer

No in-app purchases

Questions

Is Shake Judge free?
Shake Judge is free to download, with no in-app purchases.
Is ○× Buzzer free?
○× Buzzer is free to download, with no in-app purchases.
Do Shake Judge or ○× Buzzer have ads?
Both Shake Judge and ○× Buzzer show ads.
Which is updated more often, Shake Judge or ○× Buzzer?
Shake Judge ships an update every 5 months, and ○× Buzzer weekly. Most recently, Shake Judge was updated on September 8, 2026 and ○× Buzzer on September 19, 2026.

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