Comparison

Dr VB800 vs TANGRAM IoT 3.0

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

Head to head

About

Dr VB800

Features

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This APP works with Tecom VB-800 Smart Wireless Vibration Temperature Sensor which is installed on rotating machine. User can read the real-time operation information (three-axis RMS vibration of velocity & acceleration, the FFT of velocity & acceleration, raw data, single point temperature), Health Index and Maintenance Schedule Suggestion of the machine through this APP. The information can also be uploaded to the remote management platform to perform functions such as storage, trend comparison, diagnostic analysis and report output. It provides predictive maintenance and be prepared for the worst.

About

TANGRAM IoT 3.0

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Collect data through each respective sensors, record into TANGRAM. Use communication interface such as WiFi/BLE/NB-IoT/4G to send data back to TANGRAM IoT Cloud. Provide users with value by processing large amounts of data through the analysis platform complemented by its domain knowledge.

Screenshots

Dr VB8004 screens

TANGRAM IoT 3.04 screens

Verdict

The call

The clearest difference is iOS requirement: Dr VB800 at 12.0 against TANGRAM IoT 3.0's 15.6. 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

Dr VB800 ships an update every 5 weeks, TANGRAM IoT 3.0 every 3 weeks. The most recent releases landed on October 25, 2026 and November 4, 2026 respectively.

Scorecard1 real difference · 5 level

Dr VB800 versus TANGRAM IoT 3.0: the parameters behind the verdict, then further details
Parameter	Dr VB800	TANGRAM IoT 3.0
Price	Free	Free
Update frequency	Every 5 weeks	Every 3 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	12.0 — better	15.6
Further details — not scored
Size	41 MB	56 MB
Age rating	4+	4+
Developer	TECOM CO., LTD.	TANGRAM Company Limited.

In-app purchases

None

Dr VB800

No in-app purchases

None

TANGRAM IoT 3.0

No in-app purchases

Questions

Is Dr VB800 free?

Dr VB800 is free to download, with no in-app purchases.

Is TANGRAM IoT 3.0 free?

TANGRAM IoT 3.0 is free to download, with no in-app purchases.

Do Dr VB800 or TANGRAM IoT 3.0 have ads?

Neither Dr VB800 nor TANGRAM IoT 3.0 shows ads.

Which is updated more often, Dr VB800 or TANGRAM IoT 3.0?

Dr VB800 ships an update every 5 weeks, and TANGRAM IoT 3.0 every 3 weeks. Most recently, Dr VB800 was updated on October 25, 2026 and TANGRAM IoT 3.0 on November 4, 2026.