Comparison

BlueID SDK vs ScreenPenguin

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

Head to head
About

BlueID SDK

This app demonstrates how to integrate secure ticketing and access control features into your products using a software development kit. It requires a personalized access key to function, which can be obtained from a BlueID representative.

Highlights
  • Integrates ticketing and secure access
  • Software Development Kit (SDK)
  • Smartphone authorization management
  • Works offline
  • Supports Bluetooth Smart, NFC, WiFi
Read full description

The BlueID SDK app allows you to see how easily the BlueID Software Development Kit integrates ticketing and secure access features in your products, backend infrastructure and services. *** This app only works with a personalized access key. Only download this app after you have received your personalized access key and instructions. You can request the key and instructions from your BlueID representative or by sending an e-mail to sales@BlueID.net. *** *** News - Join our social media channels and receive news first! http://www.twitter.com/blueid_en http://www.facebook.com/BlueID.EN http://plus.google.com/b/102884825919636599689 http://www.linkedin.com/company/1314651 http://www.xing.com/net/blueid http://www.youtube.com/baimostechnologies *** About BlueID BlueID is a self-sufficient, highly secure platform for authorization management via smartphone. The software-based BlueID platform makes it possible to receive sensitive authorizations in a secure manner using smartphone apps, allowing users e.g. to open doors, start cars or control objects at the tap of a button. BlueID is invisible to users and enhances the convenience of applications. To ensure the necessary permissions security on the smartphone, BlueID uses a Trust Center based on a Public Key Infrastructure (PKI). The patented BlueID technology enables full functionality even without an online connection and works with communication standards like Bluetooth Smart, NFC, WiFi and the mobile Internet. Customers can easily integrate BlueID into their apps, back-end systems and control modules using a Software Development Kit (SDK) to get their products to market faster – something they really value. BlueID assists the business logic of the application, which remains entirely in the hands of the customer. For more information about BlueID please visit www.BlueID.net. *** About BlueID gmbh BlueID specializes in Mobile Security Software & Trusted Computing and develops software-based authorization management products for smartphones and the Internet of Things (IoT). The BlueID platform from BlueID GmbH turns the smartphone into a secure digital key. It provides high user convenience in mobile identification, access control, authentication, and remote control. The platform can be easily integrated into apps, back-end systems and control modules. BlueID works with partners like Marquardt, Emerson Network Power, eQ-3/ELV, Microsoft and noris network. Its list of customers includes Audi, Daimler, Sixt and Pango Mobile Parking.

About

ScreenPenguin

Features
Read full description

Organize photos, saved images, and screenshots with a swipe, then review your selections before deleting. Choose “All images” as the cleanup target to include photos and saved images the app can access. Photo access permission is required. Swipe left to mark an image for deletion, right to keep it, or up to decide later. Work through your collection at your own pace. SORT YOUR COLLECTION You can also choose to organize screenshots only. REVIEW BEFORE DELETING Check the deletion list and previews, and remove any image you want to keep before confirming. REVIEW SAVED IMAGES See images you swiped right on in the saved list. Removing an item from that list does not delete the original image from your device. TRACK YOUR PROGRESS See the number of images deleted, estimated storage savings, and cleanup history. Storage savings are estimates. CHOOSE YOUR LOOK Select light mode, dark mode, or follow your device settings. Start organizing your images with ScreenPenguin. Images are processed on your device. Advertising and analytics may use a network connection.

Screenshots

BlueID SDK2 screens
ScreenPenguin3 screens

Verdict

The call

The clearest difference is ads: BlueID SDK at none against ScreenPenguin's shown. BlueID SDK also leads on iOS requirement (10.0 vs 15.0). ScreenPenguin's advantage is update cadence (every 3 days vs every 2 months). On price, 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

BlueID SDK ships an update every 2 months, ScreenPenguin every 3 days. The most recent releases landed on October 23, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
BlueID SDK versus ScreenPenguin: the parameters behind the verdict, then further details
ParameterBlueID SDKScreenPenguin
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size15 MB36 MB
Age rating4+4+
DeveloperBlueID GmbHKAZUKI KUMAZAWA

In-app purchases

None

BlueID SDK

No in-app purchases

None

ScreenPenguin

No in-app purchases

Questions

Is BlueID SDK free?
BlueID SDK is free to download, with no in-app purchases.
Is ScreenPenguin free?
ScreenPenguin is free to download, with no in-app purchases.
Do BlueID SDK or ScreenPenguin have ads?
ScreenPenguin shows ads; BlueID SDK does not.
Which is updated more often, BlueID SDK or ScreenPenguin?
BlueID SDK ships an update every 2 months, and ScreenPenguin every 3 days. Most recently, BlueID SDK was updated on October 23, 2026 and ScreenPenguin on October 31, 2026.

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