Stack Testers Flow Friend vs ControlPlus2
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Stack Testers Flow Friend
This mobile toolkit assists environmental engineers with on-site calculations for stack testing. Quickly determine velocity and volume flow by inputting stack size and gas conditions, eliminating the need for manual calculations or laptops. It also aids in calculating differential pressure cell mA output for data logging.
- Velocity and volume flow calculations
- Input stack size and gas conditions
- Differential pressure cell mA output calculation
- Preloaded Engineers Note Book content
- On-site calculation tool
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Stack Testers Flow Friend is part of a suite of apps developed by the Engineers of CES Environmental Instruments, one of the UKs leading environmental Test Houses and incorporates some of their on-site calculations in an easy to use app. When working on the stack and you need to quickly calculate a velocity or volume flow, the answer can be at your fingertips. By inputting the essential parameters of the stack size and gas conditions, the velocity and volume flow can be determined without the need to manually calculate the value or start up a laptop. The app is an essential tool for the professional Environmental engineer. The app is a useful aid to the C & I engineer calculating the Differential Pressure cell mA output used for data logging. The contents of the CES Environmental Instruments popular Engineers Note Book is preloaded within the app.
ControlPlus2
Manage your Orisec intruder alarm system remotely from your smartphone or tablet. Gain complete visibility, receive real-time notifications, and control multiple sites with an intuitive interface. Secure login options ensure quick and safe access to your system's status and events.
- Remote system access
- Biometric login
- Multi-site control
- Arm/disarm alarm
- Real-time notifications
- Zone status monitoring
- Device control
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The ControlPlus2 app gives users full access to their Orisec intruder alarm system, anytime, anywhere. ControlPlus2 is for people who want complete visibility of their system, allowing total operational control, system event notifications and monitoring from anywhere in the world. With the Orisec ControlPlus2 app you can: β’ Remotely and securely access your Orisec intruder alarm system from your phone or tablet. β’ Use biometric fingerprint and face recognition to login for quick and secure access to your app. β’ Access and control multiple protected sites, like your home and your office. β’ Arm, disarm or part arm any of your alarm systems through a simple intuitive interface. β’ Receive real time notifications from all your monitored sites directly to your phone or tablet. β’ View notification history from each monitored site. β’ View the real time status and recent activity of each monitored zone. β’ View all or selected event types from the system event log. β’ View zone activity history. β’ Turn on or off devices connected to the remote-controlled outputs. β’ Use the virtual remote keypad to operate your alarm system. β’ Get context sensitive help to guide you through the app features and functions. β’ Use the dedicated Density Fog screen for diagnostics and remote control of their fog machines. β’ Select dark or light colour themes with the option of full customisation.
Screenshots
Verdict
The clearest difference is review sentiment: ControlPlus2 at 20% against Stack Testers Flow Friend's 0%. ControlPlus2 also leads on update cadence (every 3 months vs every 8 months). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Stack Testers Flow Friend ships an update every 8 months, ControlPlus2 every 3 months. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.
| Parameter | Stack Testers Flow Friend | ControlPlus2 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 20.0% of reviews β better |
| Update frequency | Every 8 months | Every 3 months β better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details β not scored | ||
| Size | 32 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Lewis Holmes | Colin Galbraith |
Customer experience
Stack Testers Flow Friend
ControlPlus2
In-app purchases
Stack Testers Flow Friend
No in-app purchases
ControlPlus2
No in-app purchases
Questions
Is Stack Testers Flow Friend free?
Is ControlPlus2 free?
Do Stack Testers Flow Friend or ControlPlus2 have ads?
Which is updated more often, Stack Testers Flow Friend or ControlPlus2?
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