Comparison

ecofactory vs kookminbooks

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

Head to head

About

ecofactory

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

kookminbooks

Features

Read full description

Screenshots

ecofactory2 screens

kookminbooks4 screens

Verdict

The call

The clearest difference is update cadence: kookminbooks at every 3 weeks against ecofactory's every 3 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

ecofactory ships an update every 3 months, kookminbooks every 3 weeks. The most recent releases landed on September 11, 2026 and May 19, 2026 respectively.

Scorecard1 real difference · 5 level

ecofactory versus kookminbooks: the parameters behind the verdict, then further details
Parameter	ecofactory	kookminbooks
Price	Free	Free
Update frequency	Every 3 months	Every 3 weeks — better
Ads	Yes	Yes
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	14.0	14.0
Further details — not scored
Size	70 MB	73 MB
Age rating	4+	4+
Developer	Culture of Beauty co.ltd	국민서관 (주)

In-app purchases

None

ecofactory

No in-app purchases

None

kookminbooks

No in-app purchases

Questions

Is ecofactory free?

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

Is kookminbooks free?

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

Do ecofactory or kookminbooks have ads?

Both ecofactory and kookminbooks show ads.

Which is updated more often, ecofactory or kookminbooks?

ecofactory ships an update every 3 months, and kookminbooks every 3 weeks. Most recently, ecofactory was updated on September 11, 2026 and kookminbooks on May 19, 2026.