Comparison

HHDLINK vs Zctower

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

Head to head
About

HHDLINK

Features
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HHDLINK is an APP for logistics supply chain. The smart locks can be linked the application scenarios of the supply chain to realize electronic data handover and secure delivery throughout the whole process which offering a transparent supply chain. The types of smart locks include G-Lock, B-Lock, L-Lock, M-locks, N-Lock,S-Box, T- seals, and Smart Gateways. The functions of each type of product are as follows: G- Lock Lock/Unlock: support remote or Bluetooth operation Password: dynamic password, static password, and authorized sharing NFC: NFC cards configurable, support on-stie and remote operation both ways Setting: devices parameters can be read and modified Trajectory: support to trace and playback the moving paths Fence: route deviation and fence lock/unlock various alarms E-waybill: E-data can be saved and write into devices Video: lock, unlock and tamper will be recorded and upload to server and support remote check. B-Lock Lock/Unlock: support remote or Bluetooth operation Password: dynamic password, static password, and authorized sharing NFC: NFC cards configurable, support on-stie and remote operation both ways Setting: devices parameters can be read and modified Fence: route deviation and fence lock/unlock various alarms Record: support to check the lock/unlock and tamper history L- Lock Lock/Unlock: support remote or Bluetooth operation Password: dynamic password, static password, and authorized sharing NFC: NFC cards configurable, support on-stie and remote operation both ways Setting: devices parameters can be read and modified Fence: route deviation and fence lock/unlock various alarms Reservation command: supports issuing pre-command to unseal LORA locks or set parameters at a specified time. S-Box Lock/Unlock: support remote or Bluetooth operation Password: dynamic password, static password, and authorized sharing NFC: NFC cards configurable, support on-stie and remote operation both ways Setting: devices parameters can be read and modified Trajectory: support to trace and playback the moving paths Fence: route deviation and fence lock/unlock various alarms E-waybill: E-data can be saved and write into devices Video: lock, unlock and tamper will be recorded and upload to server and support remote check. M- Lock Lock/Unlock: support remote or Bluetooth operation Password: dynamic password, static password, and authorized sharing NFC: NFC cards configurable, support on-stie and remote operation both ways Setting: devices parameters can be read and modified N-Lock Lock/Unlock: support remote or Bluetooth operation Record: support to check the lock/unlock and tamper history T-Seal Setting: devices parameters can be read and modified Trajectory: support to trace and playback the moving paths Fence: route deviation and fence lock/unlock various alarms E-waybill: E-data can be saved and write into devices Gateway Slave Locks: support remote command or RFID card to configure slaves locks Password: dynamic password, static password, and authorized sharing NFC: NFC cards configurable, support on-stie and remote operation both ways Setting: devices parameters can be read and modified Trajectory: support to trace and playback the moving paths Fence: route deviation and fence lock/unlock various alarms E-waybill: E-data can be saved and write into devices Video: lock, unlock and tamper will be recorded and upload to server and support remote check.

About

Zctower

Control smart lock terminal devices remotely. Manage unlocking, locking, key settings, and permissions wirelessly. Collect data from your devices.

Highlights
  • Wireless device control
  • Unlocking and locking
  • Key setting
  • Permission management
  • Data collection
Features
Read full description

Zhengcheng Smart Lock APP is an application designed by Fuzhou Zhengcheng Lead Seal Co., Ltd. to control terminal devices. It uses wireless technology to realize operations such as unlocking, locking, key setting, permission control, and data collection of terminal devices.

Screenshots

HHDLINK4 screens
Zctower3 screens

Verdict

The call

The clearest difference is update cadence: Zctower at weekly against HHDLINK's every 5 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

HHDLINK ships an update every 5 months, Zctower weekly. The most recent releases landed on September 18, 2026 and June 1, 2026 respectively.

Scorecard1 real difference · 9 level
HHDLINK versus Zctower: the parameters behind the verdict, then further details
ParameterHHDLINKZctower
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 5 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size62 MB43 MB
Age rating4+4+
DeveloperShenzhen HHD Technology Co.,ltd福州正城铅封有限公司

In-app purchases

None

HHDLINK

No in-app purchases

None

Zctower

No in-app purchases

Questions

Is HHDLINK free?
HHDLINK is free to download, with no in-app purchases.
Is Zctower free?
Zctower is free to download, with no in-app purchases.
Do HHDLINK or Zctower have ads?
Neither HHDLINK nor Zctower shows ads.
Which is updated more often, HHDLINK or Zctower?
HHDLINK ships an update every 5 months, and Zctower weekly. Most recently, HHDLINK was updated on September 18, 2026 and Zctower on June 1, 2026.

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