Comparison

Pipe Calc vs 2FA Authenticator

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

Head to head
About

Pipe Calc

Features
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Pipe Calc is a hydraulic pipe network calculator. Select a predefined network, adjust properties and instantly calculate pressures, flow rates, velocities and head losses. AVAILABLE NETWORKS β€’ Pump to elevated tank β€’ Gravity-fed pipeline β€’ Gravity distribution network β€’ Pump to irrigation β€’ Looped network (closed circuit) β€’ Series pumping (booster) β€’ Pump to two tanks β€’ Building pumping (risers and laterals) FREE FEATURES β€’ 8 ready-to-use hydraulic network templates β€’ Edit properties: diameters, lengths, elevations, demands, pump curves β€’ Full hydraulic solver (gradient method) β€’ Color-coded results on the network: pressures, flow rates and velocities β€’ Auto-save changes PRO (one-time purchase) β€’ Export full report for sharing β€’ Add and remove nodes and pipes β€’ Insert node into existing pipe β€’ Parallel pumps β€’ Create custom networks Calculation engine based on the Global Gradient Algorithm (GGA) with the Hazen-Williams equation. Reliable results for both branched and looped networks. Ideal for: β†’ Preliminary design of pumping systems β†’ Quick verification of distribution networks β†’ Hydraulics coursework β†’ Field technicians who need quick calculations

About

2FA Authenticator

Features
Read full description

Protect every online account with two-factor authentication β€” fast, simple and private. Authenticator generates secure one-time codes, keeps your passwords in the same protected place and syncs everything across your iPhone, iPad and Mac. ADD ACCOUNTS IN SECONDS β€’ Scan a QR code with the camera β€’ Import a QR code from a screenshot, Photos or Files β€’ Enter a setup key manually β€’ Moving from Google Authenticator? Scan its export QR code to transfer multiple accounts at once. Duplicates are skipped automatically. WORKS WITH POPULAR 2FA SERVICES Authenticator uses TOTP, the open standard supported by most social networks, email, cloud storage, crypto exchanges, banks, games and work tools. It supports SHA-1, SHA-256 and SHA-512, 6- to 8-digit codes and custom periods. CODES AT A GLANCE β€’ Copy any code with a single tap or click β€’ A live countdown shows how long each code stays valid β€’ Codes are generated on your device and work offline PASSWORDS IN THE SAME APP β€’ Save logins with username, password, website and recovery info β€’ Create strong passwords with the built-in generator β€’ Passwords stay hidden until you choose to show them STAY ORGANIZED β€’ Pin the accounts you use most to the top β€’ Sort codes and passwords into folders and arrange them your way β€’ Find anything instantly with search β€’ Deleted something by mistake? Restore it from Recently Deleted within 30 days SYNC AND BACKUP β€’ With iCloud Keychain turned on, your codes, passwords and folders sync across iPhone, iPad and Mac with end-to-end encryption β€’ New device or reinstalled the app? Everything comes back automatically β€’ Export a backup file of your codes, passwords and folders, protected with a password you choose SECURITY FIRST β€’ App Lock with Face ID, Touch ID or your device passcode or password β€’ Auto-lock after 5 seconds to 1 hour β€” you choose β€’ Your codes and passwords are stored in Apple's encrypted Keychain PRIVACY AND YOUR DATA β€’ No sign-up, no account required β€’ Your 2FA secrets and passwords are never sent to our servers. They stay on your devices and in your own iCloud Keychain. β€’ The camera is used only to scan QR codes. Images are processed on your device and are never uploaded. β€’ Face ID and Touch ID are handled by Apple. The app never receives your biometric data. β€’ To improve the app, we collect limited data: usage statistics and crash reports (Firebase Analytics and Crashlytics) and your subscription status. This data never includes your codes, passwords or account details. PREMIUM SUBSCRIPTION β€’ Premium unlocks unlimited access to all features. It is offered as an auto-renewable subscription; available plans and prices are shown in the app before purchase. β€’ Payment is charged to your Apple Account at confirmation of purchase. β€’ The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. β€’ You can manage or cancel your subscription at any time in your App Store account settings. β€’ If a free trial is offered, any unused portion of it is forfeited when you purchase a subscription. Terms of Use: https://telegra.ph/Authenticator-Terms-of-Use-10-13 Privacy Policy: https://telegra.ph/Authenticator-Privacy-policy-10-13

Screenshots

Pipe Calc3 screens
2FA Authenticator4 screens

Verdict

The call

Pipe Calc and 2FA Authenticator are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Pipe Calc sells 1 one-off in-app purchase and 2FA Authenticator sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Pipe Calc ships an update fortnightly, 2FA Authenticator every 3 weeks. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

ScorecardNo meaningful differences
Pipe Calc versus 2FA Authenticator: the parameters behind the verdict, then further details
ParameterPipe Calc2FA Authenticator
PriceFreeFree
Update frequencyFortnightly β€” betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac β€” better
Requires iOS15.1 β€” better16
Further details β€” not scored
Size28 MB27 MB
Age rating4+4+
DeveloperTransparent Blue Water LLCAryan Catar

In-app purchases

1 purchases

Pipe Calc

One-time1
  • Pipe Calc Pro$9.99
3 purchases

2FA Authenticator

Subscriptions3
  • Weekly3 Days trial$6.997 Days
  • Monthly$19.991 Month
  • Yearly$49.991 Year

Questions

Is Pipe Calc free?
Pipe Calc is free to download, with in-app purchases available.
Is 2FA Authenticator free?
2FA Authenticator is free to download, with in-app purchases available.
Do Pipe Calc or 2FA Authenticator have ads?
Neither Pipe Calc nor 2FA Authenticator shows ads.
Which is updated more often, Pipe Calc or 2FA Authenticator?
Pipe Calc ships an update fortnightly, and 2FA Authenticator every 3 weeks. Most recently, Pipe Calc was updated on October 31, 2026 and 2FA Authenticator on November 10, 2026.

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