Comparison

C2 Flanker Task vs Passpack Password Manager

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

Head to head
About

C2 Flanker Task

This app measures response times for a flanker task, recording data in milliseconds. Export your results to a CSV file for analysis in spreadsheet applications. Customize the task by altering coloring, background brightness, and arrow shapes.

Highlights
  • Measures response time in milliseconds
  • CSV data export for spreadsheets
  • Customizable task parameters
  • Analyzes flanker task effects
  • Supports iPhone and iPad
Features
Read full description

The iOS app "C2 Flanker Task" records the response time of a flanker task (task conflict) in milliseconds. Response time is the time from when the task is displayed to when the answer button is touched (touchdown). The recorded data can be output to a CSV file and read into a spreadsheet application such as Excel. In addition to the orthodox flanker task, you can also check the effect by changing the presence or absence of coloring, the brightness of the background, the shape of the arrow, and so on. * The effect of the flanker task appears, for example, as the difference between the time to recognize the direction of the central arrow of →→→→→ and the time to recognize the direction of the central arrow of ←← → ←←. [details] https://app.brain-workout.org/flankertask-e/

About

Passpack Password Manager

Securely store, organize, and share sensitive information with end-to-end encryption. Generate two-factor authentication codes and manage access for teams with granular permissions. Syncs across devices for seamless access.

Highlights
  • End-to-end encrypted password vaults
  • Built-in 2FA/TOTP generation
  • Secure team sharing with access control
  • Organize with vaults and color-coded tags
  • Cross-device synchronization
  • Single sign-on options
Read full description

Passpack brings 20 years of trusted password management to iPhone. Store, organize, and share passwords with end-to-end encryption that means only you can read your data — not us, not anyone else. ZERO-KNOWLEDGE BY DESIGN Every password, note, and credential is encrypted on your device before it ever leaves your phone. Passpack uses a layered AES-GCM + RSA-OAEP key hierarchy so the data sitting on our servers is unreadable without your packing key. We can't decrypt it. Our engineers can't decrypt it. An attacker who breaches our infrastructure can't decrypt it. That's the point. KEY FEATURES • Encrypted password vaults — store logins, secure notes, and custom fields with AES-256 encryption. • Built-in 2FA / TOTP — generate time-based one-time codes alongside the credentials they protect. • Team sharing — share specific passwords with specific teammates via a per-team key system. Revoke access at any time. • Vaults and tags — organize by department, project, client, or any structure. Color-coded tags make search fast. • Cross-device sync — use Passpack on iPhone, iPad, the web app, and the browser extension. Your data follows you. • Single sign-on — log in with email, Google, or Microsoft (Azure). Full MFA / TOTP support. • Device approval — new device login attempts must be approved from a trusted device. Even with your password, an attacker can't get in. BUILT FOR TEAMS — NOT JUST INDIVIDUALS Most password managers treat sharing as an afterthought bolted onto a personal-vault product. Passpack was built around shared credentials from day one. Vaults, teams, and role-based permissions are first-class concepts, not features grafted on later. Whether you're a two-person consultancy or a multi-department company, the same architecture scales without compromising on encryption. PRIVACY AND SECURITY The iOS app uses iOS Keychain to store device-level keys and standard, well-vetted cryptographic algorithms — AES-GCM, RSA-OAEP, PBKDF2, SHA-256. The app is classified under EAR ECCN 5D992.c (mass-market encryption software). Because of zero-knowledge encryption, your packing key is the only way back into your account. Passpack staff cannot reset it for you. We strongly recommend storing it somewhere safe — a recovery sheet, a hardware vault, or a trusted family member. REQUIRES A PASSPACK ACCOUNT New to Passpack? Sign up at passpack.com. Existing customer? Log in with your usual credentials and your vaults sync automatically. Questions or feedback: contact us at support@passpack.com.

Screenshots

C2 Flanker Task4 screens
Passpack Password Manager4 screens

Verdict

The call

The clearest difference is price: Passpack Password Manager at Free against C2 Flanker Task's $3.99. Passpack Password Manager also leads on update cadence (every 5 days vs every 12 months). On review sentiment, 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

Passpack Password Manager is free to download; C2 Flanker Task costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

C2 Flanker Task ships an update every 12 months, Passpack Password Manager every 5 days. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
C2 Flanker Task versus Passpack Password Manager: the parameters behind the verdict, then further details
ParameterC2 Flanker TaskPasspack Password Manager
Price$3.99Free — better
Rating—5.0 (2 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 12 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.5 — better
Further details — not scored
Size1 MB57 MB
Age rating4+4+
DeveloperYasuyoshi OtaPasspack Inc

Customer experience

C2 Flanker Task

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Passpack Password Manager

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

C2 Flanker Task

No in-app purchases

None

Passpack Password Manager

No in-app purchases

Questions

Is C2 Flanker Task free?
C2 Flanker Task costs $3.99, with no in-app purchases.
Is Passpack Password Manager free?
Passpack Password Manager is free to download, with no in-app purchases.
Do C2 Flanker Task or Passpack Password Manager have ads?
Neither C2 Flanker Task nor Passpack Password Manager shows ads.
Which is updated more often, C2 Flanker Task or Passpack Password Manager?
C2 Flanker Task ships an update every 12 months, and Passpack Password Manager every 5 days. Most recently, C2 Flanker Task was updated on October 16, 2026 and Passpack Password Manager on October 12, 2026.

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