iokey vs MiniProf Criterion
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
iokey
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Short Description: This is the solution using smartphone to control and open the lock/door lock. Detail Description: The lock can be opened without physical key or password using the iokey (Bulukey) application after installing the door lock and registering the user on Iokey (Bulukey) service. Additionally, User can use powerful central managing function such as control mode, approval mode for the lock based on the schedule and so on. # Main Function # 1) Contactless Lock Opening Function - The lock can be opened using the button at smartphone application. - Switch from physical key to logical key (No loss, No copy) 2) Manager Approval Mode Based on the Schedules - The message will be transmitted to the manager in real time when the user tries to open the lock which sets as an important one. After the manager gives approval to open the lock, the user can open it. 3) Control Mode Based on the Schedules - Depending on the user or working hours, the authority for handling the lock can be set. 4) Easy Access Authority Set Up - Manager can give or collect access authority to user easily even for multiple locks or door locks 5) Checking the History of Access - Every history such as opening the lock, changing parameters or making a report saves to website. Manager can check the history easily. Customer Service : dambeesoft@gmail.com (Weekday 9:00-18:00 KST)
MiniProf Criterion
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MiniProf Criterion is the mobile app for performing profile measurements with a MiniProf BT instrument. It currently supports profile measuring with MiniProf single head Wheel, Rail and Brake systems. In addition to profile measurements, Criterion includes selected calculations and alignments from the complete Envision software package. MiniProf Criterion is designed for use on smartphones and provides an intuitive measuring process, which works just like MiniProf Envision. The app supports numerous languages for a personalized user experience. Measurement schemes enable easy data collection of user-defined patterns of measuring locations resulting in efficient and reliable measurements. In addition, the GPS location can be attached to the individual measurement. Instant results are shown upon completion of a measurement, along with optional alarms using limits configured within the selected reference profile. Profiles and result values can be viewed later and easily transferred to a Windows based PC for detailed analysis in MiniProf Envision. Please note: The app requires instruments are capable of Bluetooth BLE. Please contact Greenwood Engineering to make arrangement for instrument upgrades if necessary.
Screenshots
Verdict
The clearest difference is iOS requirement: iokey at 15.0 against MiniProf Criterion's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
iokey ships an update every 4 months, MiniProf Criterion every 3 months. The most recent releases landed on September 24, 2026 and September 7, 2026 respectively.
| Parameter | iokey | MiniProf Criterion |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 3 months β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 14 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Dambee Technology Co., Ltd. | Greenwood Engineering AS |
In-app purchases
iokey
No in-app purchases
MiniProf Criterion
No in-app purchases
Questions
Is iokey free?
Is MiniProf Criterion free?
Do iokey or MiniProf Criterion have ads?
Which is updated more often, iokey or MiniProf Criterion?
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