Orifice Flow Rate Calculator vs Smart Flow Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Orifice Flow Rate Calculator
Easily calculate natural gas orifice flow rates using the AGA 3 standard. This utility app allows users to determine MCF production for a given duration, save calculations, and export data to CSV. It functions offline, requiring no cell service.
- Orifice MCF Calculator
- Rotary (Direct) MCF Calculator
- Save all calculations
- View saved inputs and calculations
- Export calculations to CSV
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Looking to calculate orifice flow rates quickly and easily? R. L. Laughlin has a solution for you! With our Orifice Flow Rate Calculator, users are given the ability to determine orifice flow rates easily and quickly that does not require cell service to utilize the app. Orifice Flow Rate Calculator utilizes AGA 3 standard to calculate the MCF a single well is producing per day and for a given duration that you choose. Features: -Orifice MCF Calculator -Rotary (Direct) MCF Calculator -Ability to save all calculations -View all inputs and calculations saved for a given meter -Export all or individual saved calculations to a CSV file
Smart Flow Meter
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The main function of the Smart Flow Meter APP is to provide convenient and fast services for fuel supplier owners. Its main functions include viewing data reports, querying user cards, and other corresponding configuration management
Screenshots
Verdict
The clearest difference is update cadence: Smart Flow Meter at every 3 weeks against Orifice Flow Rate Calculator's every 6 months. Smart Flow Meter also leads on iOS requirement (11.0 vs 15.6). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Orifice Flow Rate Calculator ships an update every 6 months, Smart Flow Meter every 3 weeks. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.
| Parameter | Orifice Flow Rate Calculator | Smart Flow Meter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (113 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 113 — better | — |
| Update frequency | Every 6 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 21 MB |
| Age rating | 4+ | 17+ |
| Developer | R.L. Laughlin & Company, Inc. | 洪义 戴 |
In-app purchases
Orifice Flow Rate Calculator
No in-app purchases
Smart Flow Meter
No in-app purchases
Questions
Is Orifice Flow Rate Calculator free?
Is Smart Flow Meter free?
Do Orifice Flow Rate Calculator or Smart Flow Meter have ads?
Which is updated more often, Orifice Flow Rate Calculator or Smart Flow Meter?
Other comparisons
