Comparison

Stair Calculator vs BattGuard

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

Head to head
About

Stair Calculator

This app calculates essential parameters for stair construction, offering flexibility in input and providing multiple step set options. It supports various units and allows results to be easily copied.

Highlights
  • Calculate stair construction parameters
  • Flexible input for Run or Total Run
  • Determine largest and smallest step sets
  • Support for various units
  • Copy results to clipboard
Features
Read full description

Stair Calculator helps you calculate and compare staircase dimensions. FEATURES • Calculate using Run, Total Run, or Stair Angle • Enter a specific number of Runs or explore all calculated options • Support Metric and Imperial units • View detailed measurements and stair diagrams • Export results as a PDF or image • Copy results to the clipboard IMPORTANT Results are generated based on user-provided values and general calculation models. The app is intended for reference and educational purposes only. Please verify all measurements, local building requirements, and safety standards before actual construction. SUBSCRIPTION This subscription package offers unlimited access to all app features throughout the subscription period. • Payment will be charged to your Apple Account at confirmation of purchase. • The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. • Your Apple Account will be charged for renewal within 24 hours before the end of the current period, and the renewal cost will be identified. • Subscriptions may be managed and auto-renewal may be turned off in your Apple Account Settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. PRIVACY POLICY https://13520178.github.io/StairCalc/policy.html TERMS OF USE https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ CONTACT If you have any questions or suggestions, please contact us. Email: phannhatd@gmail.com

About

BattGuard

Features
Read full description

BattGuard application is a system that collects data and records device status. Users can monitor the voltage and temperature of the battery in real-time on the system.

Screenshots

Stair Calculator3 screens
BattGuard4 screens

Verdict

The call

The clearest difference is in-app purchases: BattGuard at none against Stair Calculator's 2. BattGuard also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Stair Calculator sells 2 in-app purchases, starting at $9.99 per year. BattGuard asks for nothing beyond the download.

UpkeepUpdate frequency

Stair Calculator ships an update every 3 months, BattGuard every 5 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Stair Calculator versus BattGuard: the parameters behind the verdict, then further details
ParameterStair CalculatorBattGuard
PriceFreeFree
Rating4.1 (740 ratings) — better—
Positive reviews21.4% of reviews—
Number of ratings740 — better—
Update frequencyEvery 3 months — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size1 MB41 MB
Age rating4+4+
DeveloperPhan Nhat ĐangVIC OFFROAD PTY. LTD.

Bugs and requests

Stair Calculator

Reported bugs

2 issues
  • Subscription numbers don't add up
  • Doesn't provide promised features after purchase

Requested features

3 requests
  • Option to uninstall app
  • Ability to calculate run based on rise and landing space
  • Provide more detailed diagrams and visuals

BattGuard

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Stair Calculator

Subscriptions1
  • Annual Premium Package7 Days trial$9.991 Year
One-time1
  • Unlock all features$5.99
None

BattGuard

No in-app purchases

Questions

Is Stair Calculator free?
Stair Calculator is free to download, with in-app purchases available.
Is BattGuard free?
BattGuard is free to download, with no in-app purchases.
Do Stair Calculator or BattGuard have ads?
Neither Stair Calculator nor BattGuard shows ads.
Which is updated more often, Stair Calculator or BattGuard?
Stair Calculator ships an update every 3 months, and BattGuard every 5 months. Most recently, Stair Calculator was updated on November 3, 2026 and BattGuard on October 30, 2026.

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