Comparison

Kaizen OS vs E

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

Head to head

E-relife

About

Kaizen OS

Features

Read full description

This app enables retail professionals to cut screen protectors on-demand, with support for multiple templates across thousands of devices.

About

E

Features

Read full description

Techero - Your Digital Product Recycling and Trade-in Expert! Techero is an application designed specifically for digital product enthusiasts and environmentally conscious individuals. Whether you're looking to sell your old phone, tablet, or other digital devices, Techero will provide you with the most accurate valuation in just five short minutes. Our app not only helps you get the best trade-in value but also offers you a sustainable way to dispose of your old devices, contributing to the well-being of our planet.

Screenshots

Kaizen OS4 screens

E3 screens

Verdict

The call

The clearest difference is ads: E at none against Kaizen OS's shown. E also leads on update cadence (every 2 months vs every 8 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

Kaizen OS ships an update every 8 months, E every 2 months. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

Scorecard2 real differences · 4 level

Kaizen OS versus E: the parameters behind the verdict, then further details
Parameter	Kaizen OS	E
Price	Free	Free
Update frequency	Every 8 months	Every 2 months — better
Ads	Yes	No — better
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	11.0	11.0
Further details — not scored
Size	10 MB	23 MB
Age rating	4+	17+
Developer	Tech Solutions International Limited	POP RECREU ELECTRONIC SDN.BHD.

In-app purchases

None

Kaizen OS

No in-app purchases

None

E

No in-app purchases

Questions

Is Kaizen OS free?

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

Is E free?

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

Do Kaizen OS or E have ads?

Kaizen OS shows ads; E does not.

Which is updated more often, Kaizen OS or E?

Kaizen OS ships an update every 8 months, and E every 2 months. Most recently, Kaizen OS was updated on September 24, 2026 and E on September 18, 2026.