NPI SDK vs D2 Savings
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
D2 Savings
Discover and support local businesses with exclusive deals and coupons. Learn about small businesses, connect with them on social media, and save money while shopping small. This app makes supporting local convenient and rewarding.
- Browse small business deals
- Redeem coupons
- Learn about small businesses
- Follow social media
- Save money
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If you love shopping small businesses this app is for you! Browse deals to various small businesses to make shopping small more convenient in one app. Learn about small businesses, follow their social media, and of course SAVE MONEY supporting them. This app is free to download, no subscription or payment is required to view or redeem coupons. User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: NPI SDK at none against D2 Savings's 4. NPI SDK also leads on iOS requirement (13.0 vs 15.1). On price, update cadence, ads 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
Both are free to download. D2 Savings sells 4 in-app purchases, starting at $149.99 per year. NPI SDK asks for nothing beyond the download.
NPI SDK ships an update every 9 months, D2 Savings every 8 months. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.
| Parameter | NPI SDK | D2 Savings |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 9 months | Every 8 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 20 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Nippon Primex Inc. | Kayla Nangle |
In-app purchases
NPI SDK
No in-app purchases
D2 Savings
- Annual Unlimited$149.991 Year
- Coupon - 3-7 Days$4.99
- Coupon - 8-14 Days$9.99
- Coupon - 15-30 Days$14.99
