PrayerAssist vs PLC Pro
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
PrayerAssist
Read full descriptionHide full description
PrayerAssist is a utility application designed to help you realize your prayer potential. It does this by bringing intentionality to daily prayer life. Easily add prayers, plan your prayer week, and create prayer groups where you can share intentions and pray for each other. Here is a snapshot of the features: Daily Prayer Feed β’ Add prayers quickly β’ Click on prayers to mark them as completed for the day β’ Optionally import prayers from third-party sources including verse of the day, a bible reading plan, and the Joshua Project Pray through all of your prayers using prayer cards Weekly Planning β’ Determine which days of the week that you want each prayer to appear in your prayer feed Prayer Groups β’ Create private prayer groups β’ Send invitations to people you want to join your group β’ "Likeβ prayers to show that you are praying for it β’ Bookmark prayers that you want to appear in your Daily Prayer Feed
PLC Pro
Read full descriptionHide full description
PLC Pro is the essential professional calculator designed specifically for instrumentation engineers, technicians, and control systems specialists. Streamline your fieldwork with precise tools for signal calibration, alarm configuration, and PLC/DCS integrationsβall in one powerful, pocket-sized app. Key Features: β’ Multi-Signal Support β Effortlessly handle 4-20mA, 0-20mA, or 0-10V signals β’ 5-Point Signal Check β Generate instant calibration checkpoints at 0%, 25%, 50%, 75%, and 100% β’ Raw Count Conversion β Seamlessly convert between ADC/DAC counts and engineering units for any PLC or DCS system β’ Alarm Setpoint Calculator β Compute low/high pre-trip and trip values with deadband resets β’ Deviation Alarms β Apply deviation percentages and view values across all checkpoints β’ Square Root Extraction β Built-in calculations for flow transmitters β’ Save & Organize β Store unlimited calculations for fast field reference β’ Fault Detection Reference β Integrated NAMUR NE43 guidelines for reliable signal diagnostics Ideal For: Instrument technicians β’ Control systems engineers β’ PLC/DCS programmers β’ Process engineers β’ Maintenance professionals β’ Automation specialists Elevate your instrumentation workflow with PLC Proβaccuracy and efficiency at your fingertips.
Screenshots
Verdict
The clearest difference is price: PrayerAssist at Free against PLC Pro's $9.99. PrayerAssist also leads on iOS requirement (12.0 vs 15.1). PLC Pro's advantage is update cadence (every 5 days vs every 5 months). On ads, in-app purchases and device support there is nothing between them.
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
PrayerAssist is free to download; PLC Pro costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PrayerAssist ships an update every 5 months, PLC Pro every 5 days. The most recent releases landed on September 8, 2026 and September 6, 2026 respectively.
| Parameter | PrayerAssist | PLC Pro |
|---|---|---|
| Price | Free β better | $9.99 |
| Update frequency | Every 5 months | Every 5 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone, iPod |
| Requires iOS | 12.0 β better | 15.1 |
| Further details β not scored | ||
| Size | 35 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Saluxia, LLC | James Johnson |
In-app purchases
PrayerAssist
No in-app purchases
PLC Pro
No in-app purchases









