Comparison

upperstrop vs bangtankkoji

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

Head to head

About

upperstrop

Features

Read full description

Get exclusive special offers on the mobile app! Use the mobile app to enjoy features optimized for mobile devices and access exclusive special offers. Main features: Enjoy exclusive coupons and discounts Use automatic login Check and track your orders Manage your shopping cart and shipping info Receive store notifications Access social media channels Contact Customer Service

About

bangtankkoji

Features

Read full description

Screenshots

upperstrop3 screens

bangtankkoji2 screens

Verdict

The call

The clearest difference is ads: upperstrop at none against bangtankkoji's shown. bangtankkoji's advantage is update cadence (monthly vs every 3 months). On price, in-app purchases, device support and iOS requirement 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

upperstrop ships an update every 3 months, bangtankkoji monthly. Both last shipped on October 30, 2026.

Scorecard2 real differences · 4 level

upperstrop versus bangtankkoji: the parameters behind the verdict, then further details
Parameter	upperstrop	bangtankkoji
Price	Free	Free
Update frequency	Every 3 months	Monthly — better
Ads	No — better	Yes
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	14.0	13.0 — better
Further details — not scored
Size	76 MB	71 MB
Age rating	4+	4+
Developer	JAY BUDDY Co.,Ltd.	ROOTBE Co., Ltd

In-app purchases

None

upperstrop

No in-app purchases

None

bangtankkoji

No in-app purchases

Questions

Is upperstrop free?

upperstrop is free to download, with no in-app purchases.

Is bangtankkoji free?

bangtankkoji is free to download, with no in-app purchases.

Do upperstrop or bangtankkoji have ads?

bangtankkoji shows ads; upperstrop does not.

Which is updated more often, upperstrop or bangtankkoji?

upperstrop ships an update every 3 months, and bangtankkoji monthly. Most recently, upperstrop was updated on October 30, 2026 and bangtankkoji on October 30, 2026.