Comparison

KeyPass Mobile ID vs Instrument Classification

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

Head to head

Instrument Classification

Free

🔧 Utilities

No ratingsView app →

About

KeyPass Mobile ID

Features

Read full description

BLE-NFC is a Bluetooth and QR code electronic access control card software. It is designed to facilitate customers to use their mobile phones to open doors like a physical card. It has the following functions: 1. Bluetooth, shake the door or click the screen to open the door. 2. Swipe the QR code to open the door. 3. The same mobile phone can support adding 4 cards.

About

Instrument Classification

Features

Read full description

Classifying instruments by sound #Plucked string #Brass #Wind #Bowed string #Rattle #instruments

Screenshots

KeyPass Mobile ID4 screens

Instrument Classification1 screens

Verdict

The call

The clearest difference is ads: KeyPass Mobile ID at none against Instrument Classification's shown. Instrument Classification's advantage is update cadence (every 2 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement 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

KeyPass Mobile ID ships an update every 3 months, Instrument Classification every 2 weeks. The most recent releases landed on October 11, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 4 level

KeyPass Mobile ID versus Instrument Classification: the parameters behind the verdict, then further details
Parameter	KeyPass Mobile ID	Instrument Classification
Price	Free	Free
Update frequency	Every 3 months	Every 2 weeks — better
Ads	No — better	Yes
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	15.6 — better	15.8.3
Further details — not scored
Size	19 MB	43 MB
Age rating	4+	4+
Developer	SHENZHEN KEYKING TECHNOLOGY CO.,LTD.	Hideaki Uchikoshi

In-app purchases

None

KeyPass Mobile ID

No in-app purchases

None

Instrument Classification

No in-app purchases

Questions

Is KeyPass Mobile ID free?

KeyPass Mobile ID is free to download, with no in-app purchases.

Is Instrument Classification free?

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

Do KeyPass Mobile ID or Instrument Classification have ads?

Instrument Classification shows ads; KeyPass Mobile ID does not.

Which is updated more often, KeyPass Mobile ID or Instrument Classification?

KeyPass Mobile ID ships an update every 3 months, and Instrument Classification every 2 weeks. Most recently, KeyPass Mobile ID was updated on October 11, 2026 and Instrument Classification on September 24, 2026.