Comparison

OPTISONIC 6300 P vs PipeDN

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

Head to head
About

OPTISONIC 6300 P

Features
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The KROHNE OPTISONIC 6300 P App is the display/ HMI for the Portable Ultrasonic flowmeter, the OPTISONIC 6300 P. The app can be used for: - connecting to an OPTISONIC 6300 P the field device with USB cable or Bluetooth connection - Read-out (display) of the multiple measurements - Transferring log files of the measurement data - Installing the field device by using the installation wizard - Change converter settings - Converter software updates

About

PipeDN

Features
Read full description

Need to determine the pipe size for a new industrial project? Want to check the maximum recommended flow rate for an existing fluid line? PipeDN is the ultimate pocket tool for industry professionals. Quickly find the ideal Nominal Diameter (DN) or maximum operating flow rate using velocity limits based on practical, field-tested engineering standards. Beyond delivering the exact requirement, the app generates a smart reference table of neighboring commercial pipe sizes (larger and smaller). This gives you the comprehensive technical data to choose the best design alternative for your facility. Highlighted Features: • Calculation Modules: "Find Ideal DN" and "Find Max Flow". • Native support for multiple pipe materials and schedules. • Professional PDF Reports: Export a detailed calculation memory directly to PDF. Include specific pipeline TAGs for customized, ready-to-archive engineering results. • Custom Units: Fully adapt pressure, temperature, flow rate, and diameter unit sets to match your region's standard. • Embedded Physical Tables: The Steam module features built-in thermodynamic properties for precise dynamic density tracking. Supported Fluids & Applications: • Water & Condensate: Treated Water, Condensate (Pump Discharge, Pump Suction, Steam Trap Return). • Steam: Advanced sizing targeting Saturated Steam and Superheated Steam lines. • Process Gases: Combustion Air, Flammable & Non-Flammable Gases, Nā‚‚, Oā‚‚, LPG. • Compressed Air: Limits tailored for Main Lines and Secondary Branches. • Vacuum Systems (Manifolds, Separators, Blowers). • Pulp & Paper Industry Niche: Exclusive calculation module for Cellulose Pulp responding to various consistency levels (up to 6%), as well as comprehensive chemical recovery liquors (Black Liquor in 4 concentrations, Green Liquor, Lime Mud, Dregs, Filtrate, Alkalis, and Tall Oil Soap). • Common Chemicals: Sodium Hydroxide, Sulphuric Acid, Antifoams, and Lubricating Oils. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

OPTISONIC 6300 P4 screens
PipeDN4 screens

Verdict

The call

The clearest difference is in-app purchases: OPTISONIC 6300 P at none against PipeDN's 3. PipeDN's advantage is update cadence (every 3 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

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

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

Both are free to download. PipeDN sells 3 in-app purchases, starting at $7.99 per month. OPTISONIC 6300 P asks for nothing beyond the download.

UpkeepUpdate frequency

OPTISONIC 6300 P ships an update every 5 months, PipeDN every 3 weeks. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

Scorecard2 real differences Ā· 4 level
OPTISONIC 6300 P versus PipeDN: the parameters behind the verdict, then further details
ParameterOPTISONIC 6300 PPipeDN
PriceFreeFree
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size42 MB40 MB
Age rating4+4+
DeveloperKROHNE Messtechnik GmbHAQUILES DE LIMA

In-app purchases

None

OPTISONIC 6300 P

No in-app purchases

3 purchases

PipeDN

Subscriptions2
  • PipeDN Pro$7.991 Month
  • PipeDN Pro$49.991 Year
One-time1
  • PipeDN Pro$79.99

Questions

Is OPTISONIC 6300 P free?
OPTISONIC 6300 P is free to download, with no in-app purchases.
Is PipeDN free?
PipeDN is free to download, with in-app purchases available.
Do OPTISONIC 6300 P or PipeDN have ads?
Neither OPTISONIC 6300 P nor PipeDN shows ads.
Which is updated more often, OPTISONIC 6300 P or PipeDN?
OPTISONIC 6300 P ships an update every 5 months, and PipeDN every 3 weeks. Most recently, OPTISONIC 6300 P was updated on October 13, 2026 and PipeDN on October 5, 2026.

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