Flow Rate Conversion vs CoolDing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flow Rate Conversion
Easily convert between various units of flow rate, including volume-based, mass-based, and mole-based measurements. Essential for physics and engineering applications involving fluid dynamics and hydrometry.
- Volume flow rate conversion
- Mass flow rate conversion
- Mole-based flow rate conversion
- Physics and engineering utility
- Fluid dynamics calculations
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Flow Rate Conversion - Easily convert between various units of flow rate, whether it's volume-based, mass-based, or mole-based. In the realms of physics and engineering, especially in the domains of fluid dynamics and hydrometry, volumetric flow rate (also referred to as volume flow rate, fluid flow rate, or volume velocity) signifies the volume of fluid that traverses a given point per unit of time. It's typically denoted by the symbol Q, with the SI unit being m³/s (cubic meters per second). Another unit occasionally used is sccm (standard cubic centimeters per minute). In physics and engineering, mass flow rate represents the mass of a substance passing through a point per unit of time. It's measured in kilograms per second in SI units and in slug per second or pound per second in US customary units. The common symbol is ṁ (pronounced "m-dot"), although sometimes μ (Greek lowercase mu) is employed. Occasionally, mass flow rate is referred to as mass flux or mass current, as seen, for instance, in Fluid Mechanics, Schaum's, and other references. In this article, we adopt the more intuitive definition. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
CoolDing
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To operate your Plugwise CoolDing, you use the CoolDing app. With the app you can operate your air conditioner from anywhere and at any time you want. You simply record the desired commands from the remote control of your air conditioner and play these commands in the CoolDing app to operate your air conditioner. This allows you to use all functions of your air conditioner by using the CoolDing app. CoolDing is universal and works with every brand and type of air conditioner, as long as they are controlled by an infrared controller. You can also easily create a time schedule in the app which allows you to turn your air conditioner on or off or raise or lower the temperature whenever you want it to. Using CoolDing guarantees a longer life span and less maintenance of your air conditioner. This way you will always have a comfortable indoor climate and save energy at the same time. You can also control multiple air conditioner units from the CoolDing app.
Screenshots
Verdict
The clearest difference is price: CoolDing at Free against Flow Rate Conversion's $2.99. CoolDing also leads on update cadence (every 9 months vs every 29 months) and iOS requirement (5.1.1 vs 13). On ads, in-app purchases and device support 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
CoolDing is free to download; Flow Rate Conversion costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Flow Rate Conversion ships an update every 29 months, CoolDing every 9 months. The most recent releases landed on October 1, 2026 and September 25, 2026 respectively.
| Parameter | Flow Rate Conversion | CoolDing |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 29 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13 | 5.1.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Nitrio | Anna Technology B.V. |
In-app purchases
Flow Rate Conversion
No in-app purchases
CoolDing
No in-app purchases
Questions
Is Flow Rate Conversion free?
Is CoolDing free?
Do Flow Rate Conversion or CoolDing have ads?
Which is updated more often, Flow Rate Conversion or CoolDing?
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