Comparison

GAF Smart Lock vs langolink

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

Head to head

Your Smart Device Manager

Free

🔧 Utilities

No ratingsView app →

About

GAF Smart Lock

Read full description

The GAF Smart Lock App allows you to fully utilize the Smart functions of your Smart Lock. *Connect to your Smart Lock* Connect your Smart Lock with the GAF Smart Lock App to use functions such as: -One -time access keys -Use multiple pin codes and passwords -Unlock your door from your phone -Create temporary keys for visitors -Different lock modes for your convenience -1 Master fingerprint and 9 User fingerprint -1 Master BLE key access

About

langolink

Features

Read full description

Langolink is a smart device management platform that facilitates quick interactions between apps and smart hardware through the Xiaofeng Lianlian system.

Screenshots

GAF Smart Lock4 screens

langolink4 screens

Verdict

The call

The clearest difference is update cadence: langolink at every 3 weeks against GAF Smart Lock's every 20 months. GAF Smart Lock's advantage is iOS requirement (10.0 vs 12.0). 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

GAF Smart Lock ships an update every 20 months, langolink every 3 weeks. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 4 level

GAF Smart Lock versus langolink: the parameters behind the verdict, then further details
Parameter	GAF Smart Lock	langolink
Price	Free	Free
Update frequency	Every 20 months	Every 3 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	10.0 — better	12.0
Further details — not scored
Size	16 MB	61 MB
Age rating	4+	12+
Developer	广东必达保安系统有限公司	Guangzhou LANGO Electronics Technology Co., Ltd

In-app purchases

None

GAF Smart Lock

No in-app purchases

None

langolink

No in-app purchases

Questions

Is GAF Smart Lock free?

GAF Smart Lock is free to download, with no in-app purchases.

Is langolink free?

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

Do GAF Smart Lock or langolink have ads?

Neither GAF Smart Lock nor langolink shows ads.

Which is updated more often, GAF Smart Lock or langolink?

GAF Smart Lock ships an update every 20 months, and langolink every 3 weeks. Most recently, GAF Smart Lock was updated on October 6, 2026 and langolink on October 10, 2026.