Comparison

privacyIDEA Authenticator vs Mobile Event Log

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

Head to head
About

privacyIDEA Authenticator

This app transforms your smartphone into a secure authentication device for two-factor authentication. It seamlessly integrates with a backend system, offering a more secure rollout process than traditional tokens.

Highlights
  • Two-factor authentication
  • OTP token support
  • Secure rollout process
  • Smartphone as authentication device
  • REST API integration
Features
Read full description

privacyIDEA is a modular solution for two factor authentication especially with OTP tokens. It is multi-tenency- and multi-instance-capable. Due to the modular structure privacyIDEA can be quickly and easily adapted and enhanced. E.g. adding new token types is as simple as writing a new lean python module. You do not need to modify your network for privacyIDEA, it does not write to existing databases or user stores. It only needs read access to your user stores like LDAP, Active Directory, SQL, SCIM-service or flat files. Existing workflows can be enhanced without the need to modify them. Using its simple REST like API it can be automated and smoothly be integrated. The Smartphone App "privacyIDEA Authenticator" turns your smartphone into an authentication device, which smoothlessly runs with the privacyIDEA backend. In contrast to classical smartphone based tokens the privacyIDEA Authenticator also allows for a more secure rollout process.

About

Mobile Event Log

Features
Read full description

The Mobile Event Log App is part of the O2A framework and related to registry.o2a-data.de. An O2A overview can be found here: https://docs.o2a-data.de/registry/ Its functionality allows to create item events, mounts and umounts. An entry provides metadata to a scientific item operation. Details can be found here: https://docs.o2a-data.de/registry/gui/#events The app is designed to be used offline. Its target group are users who already use the online version registry.o2a-data.de and have a user account. An initial configuration and syncing the events back to https://registry.o2a-data.de/ requires to be online. Privacy Policy: https://registry.o2a-data.de/privacy Legal Notices: https://registry.o2a-data.de/legal

Screenshots

privacyIDEA Authenticator4 screens
Mobile Event Log4 screens

Verdict

The call

The clearest difference is iOS requirement: Mobile Event Log at 13.0 against privacyIDEA Authenticator's 15.6. 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

privacyIDEA Authenticator ships an update every 2 months, Mobile Event Log every 6 weeks. The most recent releases landed on September 26, 2026 and October 11, 2026 respectively.

Scorecard1 real difference · 9 level
privacyIDEA Authenticator versus Mobile Event Log: the parameters behind the verdict, then further details
ParameterprivacyIDEA AuthenticatorMobile Event Log
PriceFreeFree
Rating3.0 (7 ratings) — better—
Positive reviews42.9% of reviews—
Number of ratings7 — better—
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size30 MB19 MB
Age rating4+4+
DeveloperNetKnights GmbHAlfred-Wegener-Institut

In-app purchases

None

privacyIDEA Authenticator

No in-app purchases

None

Mobile Event Log

No in-app purchases

Questions

Is privacyIDEA Authenticator free?
privacyIDEA Authenticator is free to download, with no in-app purchases.
Is Mobile Event Log free?
Mobile Event Log is free to download, with no in-app purchases.
Do privacyIDEA Authenticator or Mobile Event Log have ads?
Neither privacyIDEA Authenticator nor Mobile Event Log shows ads.
Which is updated more often, privacyIDEA Authenticator or Mobile Event Log?
privacyIDEA Authenticator ships an update every 2 months, and Mobile Event Log every 6 weeks. Most recently, privacyIDEA Authenticator was updated on September 26, 2026 and Mobile Event Log on October 11, 2026.

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