Comparison

EMS FireCell Guide vs StandbyCalc

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

Head to head
About

EMS FireCell Guide

Features
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Download the all new 6th edition FREE FireCell Guide from EMS Ltd. Making paper manuals a thing of the past... WORKS OFFLINE; FireCell Guide takes you through the full installation process of programmed and unprogrammed systems without a network connection. It can be viewed when you’re out of cellular tower range and no wifi is available or if you just want to save your battery life.

About

StandbyCalc

Features
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StandbyCalc is the fastest way to calculate standby battery requirements for UK fire and intruder alarm systems. Built for engineers, by engineers. Enter your quiescent and alarm currents, select your system grade or category, and get an instant answer β€” including which standard battery size you need. SUPPORTS: - Intruder alarms β€” BS EN 50131 / BS 9263, Grades 1-4 - Fire alarms β€” BS 5839-1:2025, Categories L, M, and P - Standalone PSUs β€” custom standby and alarm periods FREE FEATURES: - All battery calculations - All standards and grades - Save unlimited calculations - Standard battery size recommendations PRO UPGRADE (one-time purchase): - iCloud backup across devices - PDF reports with full formula working - Add your company logo and branding - Share reports via email, AirDrop, or Files - Professional compliance documentation Compliant with NSI and SSAIB requirements. Calculations per BS 9263 Annex C and BS 5839-1:2025 Annexe E. No account required. No subscription. Just open and calculate.

Screenshots

EMS FireCell Guide4 screens
StandbyCalc4 screens

Verdict

The call

The clearest difference is in-app purchases: EMS FireCell Guide at none against StandbyCalc's 1. EMS FireCell Guide also leads on ads (none vs shown) and iOS requirement (11.0 vs 17.0). On price and device support 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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. StandbyCalc sells 1 one-off in-app purchase. EMS FireCell Guide asks for nothing beyond the download.

Scorecard3 real differences Β· 3 level
EMS FireCell Guide versus StandbyCalc: the parameters behind the verdict, then further details
ParameterEMS FireCell GuideStandbyCalc
PriceFreeFree
Update frequencyβ€”Every 4 months
AdsNo β€” betterYes
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS11.0 β€” better17.0
Further details β€” not scored
Size87 MB4 MB
Age rating4+4+
DeveloperElectronic Modular Services LtdD4N LTD

In-app purchases

None

EMS FireCell Guide

No in-app purchases

1 purchases

StandbyCalc

One-time1
  • StandbyCalc Pro$9.99

Questions

Is EMS FireCell Guide free?
EMS FireCell Guide is free to download, with no in-app purchases.
Is StandbyCalc free?
StandbyCalc is free to download, with in-app purchases available.
Do EMS FireCell Guide or StandbyCalc have ads?
StandbyCalc shows ads; EMS FireCell Guide does not.

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