Comparison

Stack Testers Flow Friend vs Mouse · Keyboard

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Mouse · Keyboard

Transform your iPhone or iPad into a precise trackpad and full-featured keyboard for your Mac or PC. Control your computer remotely for presentations, browsing, or messaging with a natural, intuitive interface. Enjoy seamless connectivity and privacy on your local network.

Highlights
  • Precise multi-touch trackpad gestures
  • Full-screen keyboard with shortcuts
  • Works with Mac and PC
  • Local network privacy
  • Landscape and portrait modes
  • Quick setup
Features
Read full description

Turn your iPhone or iPad into a powerful trackpad and keyboard for your Mac or PC. Present with confidence, browse from the couch, or answer messages without reaching for your computer. Why You’ll Love Input - Feels instantly natural. Smooth, precise multi-touch tracking with scrolling, swipes, and gestures that behave just like a real trackpad. - Type comfortably anywhere. Enjoy a full-screen keyboard with text shortcuts, emoji, and function keys—perfect for long messages or quick replies. - Works with all your computers. Install the free helper on any Mac or PC and switch between devices with a single tap. - Built for privacy. Everything stays on your local network. Connections use HTTPS and require on-device approval before pairing. - Made for every moment. Landscape or portrait, light or dark mode—Input adapts beautifully to any iPhone or iPad screen. Quick Setup 1. Download the free helper for Mac or PC at rs.ltd/get 2. Make sure your devices share the same Wi-Fi or Personal Hotspot 3. Open Input, select your computer, and you’re ready to go Requirements - Mac with macOS 10.10+ or PC running Windows 7 SP1+ - Latest helper app from rs.ltd/get - Shared network connection (Wi-Fi or Personal Hotspot); details at rs.ltd/connect Input turns any spot—sofa, stage, or bedside—into the perfect place to control your computer with ease and precision.

Screenshots

Stack Testers Flow Friend4 screens
Mouse · Keyboard3 screens

Verdict

The call

The clearest difference is review sentiment: Mouse · Keyboard at 94% against Stack Testers Flow Friend's 0%. Mouse · Keyboard also leads on update cadence (every 3 weeks vs every 8 months). Stack Testers Flow Friend's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Stack Testers Flow Friend ships an update every 8 months, Mouse · Keyboard every 3 weeks. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Stack Testers Flow Friend versus Mouse · Keyboard: the parameters behind the verdict, then further details
ParameterStack Testers Flow FriendMouse · Keyboard
PriceFreeFree
Rating—4.7 (2.5K ratings) — better
Positive reviews0.0% of reviews94.0% of reviews — better
Number of ratings—2.5K — better
Update frequencyEvery 8 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size32 MB98 MB
Age rating4+4+
DeveloperLewis HolmesRemote Sunrise LTD

Customer experience

Stack Testers Flow Friend

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Mouse · Keyboard

All ratings2,471 ratings
Positive91.8%
Neutral2.3%
Negative5.9%
Written reviews940 reviews
Positive94.0%
Neutral1.3%
Negative4.7%

Bugs and requests

Stack Testers Flow Friend

Not enough reviews yet to summarise bugs or requests.

Mouse · Keyboard

Reported bugs

2 issues
  • Cursor disappears or becomes unresponsive
  • Keyboard input not registering correctly

Requested features

3 requests
  • Add volume and brightness controls
  • Improve scrolling and zooming gestures
  • Provide more keyboard customization options

In-app purchases

None

Stack Testers Flow Friend

No in-app purchases

None

Mouse · Keyboard

No in-app purchases

Questions

Is Stack Testers Flow Friend free?
Stack Testers Flow Friend is free to download, with no in-app purchases.
Is Mouse · Keyboard free?
Mouse · Keyboard is free to download, with no in-app purchases.
Do Stack Testers Flow Friend or Mouse · Keyboard have ads?
Neither Stack Testers Flow Friend nor Mouse · Keyboard shows ads.
Which is updated more often, Stack Testers Flow Friend or Mouse · Keyboard?
Stack Testers Flow Friend ships an update every 8 months, and Mouse · Keyboard every 3 weeks. Most recently, Stack Testers Flow Friend was updated on October 5, 2026 and Mouse · Keyboard on October 12, 2026.

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