Comparison

POSTIDENT vs Polykum

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

Head to head
About

POSTIDENT

Verify your identity easily and securely using your smartphone. Choose from video chat, eID verification with your national ID, or automated image-based checks. Your data is processed by Deutsche Post AG employees for a compliant and quick process.

Highlights
  • Identity verification via smartphone
  • Video chat verification
  • eID verification with national ID
  • Automated ID document image verification
  • Digital POSTIDENT coupon retrieval
  • Secure data processing by Deutsche Post AG
Read full description

With the POSTIDENT app, you can verify your identity conveniently and simply by means of your smartphone. Depending on which of our partner companies you carry out this identification process, you can verify your identity either via POSTIDENT by videochat, POSTIDENT by eID (with your national identity card or the electronic residence title), or fully automatically by creating images of your ID document and profile. With the eID function or the automated verification of your ID document you can verify your identity quickly and securely at any time. Your data will be checked by call center employees of Deutsche Post AG in all further identification procedures. Our employees are available to you from Mondays to Sundays in the hours from 8 AM to 10 PM. In addition, you can retrieve the POSTIDENT coupon for identification in your post office directly via the POSTIDENT app and therefore do not need to print it out anymore. The identification procedures are compliant with the law, secure and completed in just a few steps. Simply enter the transaction number that you have received from either our partner company or us. The POSTIDENT app will then execute the procedure. At POSTIDENT by videochat, a Deutsche Post employee will explain additionally in detail how the procedure works. The POSTIDENT app is optimized for iPads and iPhones with iOS 17 or higher.

About

Polykum

Features
Read full description

POLYKUM e.V. is the leading innovation network for plastics and polymer technology, connecting manufacturers, researchers, universities, service providers, and industry partners across Germany and beyond. The app provides access to: Latest industry news and announcements Conference information and event schedules BIOPOLYMER – Processing & Moulding Congress updates Innovation Award information Member networking opportunities Research and technology transfer initiatives Sustainable and bio-based plastics insights Publications and technical resources Training and education opportunities Collaboration with national and international partners Whether you're a researcher, manufacturer, student, engineer, or industry professional, POLYKUM helps you stay connected with the latest developments in polymer science, sustainable materials, and plastics innovation. Download the POLYKUM app to connect with the polymer community and explore the future of sustainable plastics.

Screenshots

POSTIDENT4 screens
Polykum4 screens

Verdict

The call

The clearest difference is iOS requirement: Polykum at 15.6 against POSTIDENT's 17.0. 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

POSTIDENT ships an update monthly, Polykum every 3 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
POSTIDENT versus Polykum: the parameters behind the verdict, then further details
ParameterPOSTIDENTPolykum
PriceFreeFree
Rating4.8 (4.7K ratings) — better—
Positive reviews43.2% of reviews—
Number of ratings4.7K — better—
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.6 — better
Further details — not scored
Size77 MB25 MB
Age rating4+4+
DeveloperDeutsche Post AGPOLYKUM e.V.

Bugs and requests

POSTIDENT

Reported bugs

3 issues
  • QR code scanning not working
  • Identification process repeatedly failing
  • App freezing and crashing during use

Requested features

3 requests
  • Automatic data extraction from ID documents
  • More language options beyond German and English
  • Clearer instructions on ID document requirements

Polykum

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

POSTIDENT

No in-app purchases

None

Polykum

No in-app purchases

Questions

Is POSTIDENT free?
POSTIDENT is free to download, with no in-app purchases.
Is Polykum free?
Polykum is free to download, with no in-app purchases.
Do POSTIDENT or Polykum have ads?
Neither POSTIDENT nor Polykum shows ads.
Which is updated more often, POSTIDENT or Polykum?
POSTIDENT ships an update monthly, and Polykum every 3 weeks. Most recently, POSTIDENT was updated on November 1, 2026 and Polykum on October 31, 2026.

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