Comparison

NPI SDK vs SII PS Print Class Library

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

Head to head

SII PS Print Class Library

Free

💼 Business

No ratingsView app →

About

NPI SDK

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NPI SDK app will be able to get status also printing, to (Bluetooth or Wireless LAN connection) printer of Nippon Primex Inc.. NPI SDK can be used to support the construction of your application, to be printed easily.

About

SII PS Print Class Library

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This app allows you to print text or barcode to Seiko Instruments Inc.'s(SII) printer using the Print Class Library provided by SII. You can design your app smoothly while confirming the Print Class Library function. App function • API execution • Text printing • Barcode printing Printer Models • DPU-S245-01B • DPU-S445-01B • DPU-S245-01C • DPU-S445-01C • RP-E10-K3FJ2-B • RP-E10-W3FJ2-B • RP-E11-K3FJ2-B • RP-E11-W3FJ2-B • RP-D10-K27J2-B • RP-D10-W27J2-B • RP-E10-K3FJ1-E • RP-E10-W3FJ1-E • RP-E11-K3FJ1-E • RP-E11-W3FJ1-E • RP-D10-K27J1-E • RP-D10-W27J1-E • MP-B20-B02JK1 • MP-B30-B02JK1 • MP-B30-W02JK1 • MP-B30L-B46JK1 • MP-B30L-W46JK1 • MP-B21L-B46JK1 • MP-B21L-W46JK1 • RP-F10-K27J1 • RP-F10-W27J1 • RP-F10-K27J1-3 • RP-F10-K27J1-4 • RP-F10-K27J1-5 • RP-F10-W27J1-3 • RP-F10-W27J1-4 • RP-F10-W27J1-5 • SLP720RT-EK • SLP720RT-WK • SLP721RT-EK • SLP721RT-WK • SLP721RT-EW • SLP721RT-WW • MP-A40-B06JK3 • MP-A40-B06JK3U Display Models • DSP-A01-K1 • DSP-A01-W1 Interfaces • WiFi(TCP/IP) • Bluetooth • USB(Type-C)

Screenshots

NPI SDK4 screens

SII PS Print Class Library4 screens

Verdict

The call

The clearest difference is update cadence: SII PS Print Class Library at every 4 months against NPI SDK's every 9 months. NPI SDK's advantage is iOS requirement (13.0 vs 17.0). 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

NPI SDK ships an update every 9 months, SII PS Print Class Library every 4 months. The most recent releases landed on October 10, 2026 and September 22, 2026 respectively.

Scorecard2 real differences · 4 level

NPI SDK versus SII PS Print Class Library: the parameters behind the verdict, then further details
Parameter	NPI SDK	SII PS Print Class Library
Price	Free	Free
Update frequency	Every 9 months	Every 4 months — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	13.0 — better	17.0
Further details — not scored
Size	20 MB	2 MB
Age rating	4+	4+
Developer	Nippon Primex Inc.	Seiko Instruments Inc.

In-app purchases

None

NPI SDK

No in-app purchases

None

SII PS Print Class Library

No in-app purchases

Questions

Is NPI SDK free?

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

Is SII PS Print Class Library free?

SII PS Print Class Library is free to download, with no in-app purchases.

Do NPI SDK or SII PS Print Class Library have ads?

Neither NPI SDK nor SII PS Print Class Library shows ads.

Which is updated more often, NPI SDK or SII PS Print Class Library?

NPI SDK ships an update every 9 months, and SII PS Print Class Library every 4 months. Most recently, NPI SDK was updated on October 10, 2026 and SII PS Print Class Library on September 22, 2026.