Comparison

KeyLinker vs Helen图书馆

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

Head to head
About

KeyLinker

Customize and enhance your controller experience with this utility app. Modify parameters for keys, lighting, vibration, and more to suit your personal preferences. Enjoy a more personalized and responsive gaming setup.

Highlights
  • Modify key parameters
  • Customize lamplight settings
  • Adjust vibration feedback
  • Configure joystick and trigger
  • Simultaneous device connection
Features
Read full description

This app is used by handles that support keylinker protocol, which can be set to modify the parameters of more than ten functions of the handle, such as keys, lamplight, vibrations, joystick and trigger. Users can modify the parameters of the handle according to their habits. The flexible parameter settings greatly enhance the handle experience.The handle can be connected to this app and other equipment at the same time, and can be used at the same time

About

Helen图书馆

Features
Read full description

Helen图书馆库存及位置查询系统

Screenshots

KeyLinker4 screens
Helen图书馆4 screens

Verdict

The call

The clearest difference is update cadence: Helen图书馆 at every 2 days against KeyLinker's every 2 months. KeyLinker's advantage is iOS requirement (13.0 vs 15). 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

KeyLinker ships an update every 2 months, Helen图书馆 every 2 days. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
KeyLinker versus Helen图书馆: the parameters behind the verdict, then further details
ParameterKeyLinkerHelen图书馆
PriceFreeFree
Rating2.3 (49 ratings) — better—
Positive reviews30.2% of reviews—
Number of ratings49 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15
Further details — not scored
Size38 MB4 MB
Age rating4+4+
DeveloperShenZhen ZhiXu Technology Co., LtdSTARFORTUNE INTERACTIVE ENTERTAINMENT TECHNOLOGY CO., LIMITED

In-app purchases

None

KeyLinker

No in-app purchases

None

Helen图书馆

No in-app purchases

Questions

Is KeyLinker free?
KeyLinker is free to download, with no in-app purchases.
Is Helen图书馆 free?
Helen图书馆 is free to download, with no in-app purchases.
Do KeyLinker or Helen图书馆 have ads?
Neither KeyLinker nor Helen图书馆 shows ads.
Which is updated more often, KeyLinker or Helen图书馆?
KeyLinker ships an update every 2 months, and Helen图书馆 every 2 days. Most recently, KeyLinker was updated on October 7, 2026 and Helen图书馆 on October 8, 2026.

Other comparisons