Comparison

Yuan vs qblens

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

Head to head
About

Yuan

Features
Read full description

A note-taking app written with a smart stylus. 1. Connect to smart pen 2. Update smart pen writing track in real time 3. Play back writing 4. Smart sharing, print notes

About

qblens

Experience 3D content on your phone without special glasses. This screen protector converts 2D media into a stereoscopic 3D visual experience, making 3D viewing accessible and comfortable. It also supports creators in producing 3D content.

Highlights
  • Naked-eye 3D viewing
  • 2D to 3D content conversion
  • Replaces expensive 3D equipment
  • Supports creators' 3D content production
  • Enhanced visual experience
Features
Read full description

By using a high-quality mobile phone screen protector to replace expensive and uncomfortable 3D equipment, you can watch a large amount of 2D real-time converted 3D content, solving the 3D viewing obstacles of expensive equipment, limited content, and inconvenient and uncomfortable. optiqb naked-eye 3D mobile phone film (hereinafter referred to as "qbarmour") is a special type of screen protector product that provides users with an excellent visual experience. Users' demand for 3D content is increasing, including pictures, images, live broadcasts, games and other applications. The development of naked-eye 3D mobile phone film technology allows users to enjoy the three-dimensional effect without wearing 3D glasses. At the same time, in conjunction with optiqb's corresponding conversion supporting functions for creators' video content, a complete hardware + software product system has been established, allowing creators to significantly reduce the production threshold for 3D film and television, upgrade their original works and provide the viewing public with a new 3D visual experience.

Screenshots

Yuan4 screens
qblens4 screens

Verdict

The call

The clearest difference is device support: Yuan at 3 against qblens's 1. Yuan also leads on iOS requirement (13.0 vs 17.5). On price, update cadence, ads and in-app purchases 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

Yuan ships an update monthly, qblens every 4 weeks. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Yuan versus qblens: the parameters behind the verdict, then further details
ParameterYuanqblens
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyMonthlyEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.5
Further details — not scored
Size78 MB213 MB
Age rating17+17+
DeveloperHAOU TECHNOLOGY CO.,LTDOptiqb AI Technology Limited

In-app purchases

None

Yuan

No in-app purchases

None

qblens

No in-app purchases

Questions

Is Yuan free?
Yuan is free to download, with no in-app purchases.
Is qblens free?
qblens is free to download, with no in-app purchases.
Do Yuan or qblens have ads?
Neither Yuan nor qblens shows ads.
Which is updated more often, Yuan or qblens?
Yuan ships an update monthly, and qblens every 4 weeks. Most recently, Yuan was updated on November 4, 2026 and qblens on October 30, 2026.

Other comparisons