Comparison

Smart Propane Scale vs Marshall SmartReg

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

Head to head
About

Smart Propane Scale

This utility app helps you monitor your propane levels to avoid running out unexpectedly. It provides real-time information on how much propane you have, eliminating guesswork and ensuring you're always prepared for activities like BBQs.

Highlights
  • Real-time propane level monitoring
  • Prevents running out of propane
  • Eliminates guesswork
  • Useful for BBQs and outdoor activities
Features
Read full description

Never run out of propane again! Flame King monitors your propane levels for you. From now on, you can know exactly how much propane you have in any given moment. No more guessing, no more getting stuck in the middle of your BBQ. Flame King got your back!

About

Marshall SmartReg

Read full description

Gas tank gas level monitor

Screenshots

Smart Propane Scale4 screens
Marshall SmartReg2 screens

Verdict

The call

The clearest difference is in-app purchases: Marshall SmartReg at none against Smart Propane Scale's 1. Marshall SmartReg also leads on update cadence (every 3 days vs every 5 months). On price, ads, device support and iOS requirement 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. Smart Propane Scale sells 1 one-off in-app purchase. Marshall SmartReg asks for nothing beyond the download.

UpkeepUpdate frequency

Smart Propane Scale ships an update every 5 months, Marshall SmartReg every 3 days. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
Smart Propane Scale versus Marshall SmartReg: the parameters behind the verdict, then further details
ParameterSmart Propane ScaleMarshall SmartReg
PriceFreeFree
Rating2.4 (11 ratings) — better—
Positive reviews12.5% of reviews—
Number of ratings11 — better—
Update frequencyEvery 5 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS11.011.0
Further details — not scored
Size47 MB10 MB
Age rating4+9+
DeveloperYSN Imports, Inc.JetView Electronics (H.K) Company Limited

In-app purchases

1 purchases

Smart Propane Scale

One-time1
  • 30lbs & 40lbs tank support$1.99
None

Marshall SmartReg

No in-app purchases

Questions

Is Smart Propane Scale free?
Smart Propane Scale is free to download, with in-app purchases available.
Is Marshall SmartReg free?
Marshall SmartReg is free to download, with no in-app purchases.
Do Smart Propane Scale or Marshall SmartReg have ads?
Neither Smart Propane Scale nor Marshall SmartReg shows ads.
Which is updated more often, Smart Propane Scale or Marshall SmartReg?
Smart Propane Scale ships an update every 5 months, and Marshall SmartReg every 3 days. Most recently, Smart Propane Scale was updated on October 1, 2026 and Marshall SmartReg on October 7, 2026.

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