Comparison

BATTech by RN vs Where's My Battery?

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

Head to head
About

BATTech by RN

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Introducing BATTechβ€”the ultimate application designed to simplify complex battery calculations and generate professional PDF reports effortlessly. Developed with the expertise of Mr. Ramesh Natarajan, a veteran with over 42 years in the lead-acid battery industry, BATTech ensures precision, reliability, and efficiency at your fingertips. Why BATTech? - Accurate Calculations – Leverage industry-proven formulas for unparalleled precision. - Customizable Parameters – Tailor inputs to match your unique requirements. - Professional PDF Reports – Generate, share, and archive detailed reports instantly. - Industry-Standard Reliability – Built on decades of battery design expertise. - User-Friendly Interface – Navigate with ease, no matter your experience level. The Legacy Behind BATTech Created with insights from Ramesh Natarajan, a pioneer in the battery industry, BATTech empowers manufacturers, engineers, and educators to optimize processes, enhance product quality, and drive innovation. Who is BATTech For? - Battery Manufacturers & Engineers - Researchers & Educators - Industry Enthusiasts & Innovators Whether you’re designing, analyzing, or educating, BATTech is your go-to solution for simplified, accurate, and professional battery calculations.

About

Where's My Battery?

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Where's My Battery? takes the frustration out of managing batteries at home. Whether you're hunting for AAs for the TV remote or checking if you have a spare 9V for the smoke alarm, this app keeps everything organised in one place. TRACK YOUR BATTERY STOCK Add the batteries you have at home β€” AA, AAA, C, D, 9V or custom types β€” and see at a glance how many you have. Get low stock warnings before you run out. MANAGE YOUR DEVICES Log every device in your home and which batteries it uses. Add a photo so you can identify devices instantly. Never buy the wrong batteries again. BUY BATTERIES INSTANTLY Running low? Browse and buy batteries directly from within the app. No need to switch apps or search online β€” get what you need with a tap. BUILT FOR REAL LIFE β€’ Tracks rechargeable and non-rechargeable batteries separately β€’ Custom battery types for specialist devices β€’ Clean, simple design β€” no clutter β€’ Works completely offline, no account needed β€’ No personal data collected Download Where's My Battery? and always know exactly what's in that kitchen drawer.

Screenshots

BATTech by RN4 screens
Where's My Battery?4 screens

Verdict

The call

The clearest difference is ads: BATTech by RN at none against Where's My Battery?'s shown. Where's My Battery?'s advantage is update cadence (every 2 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

BATTech by RN ships an update every 2 months, Where's My Battery? every 2 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard2 real differences Β· 4 level
BATTech by RN versus Where's My Battery?: the parameters behind the verdict, then further details
ParameterBATTech by RNWhere's My Battery?
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 weeks β€” better
AdsNo β€” betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.515.1 β€” better
Further details β€” not scored
Size38 MB31 MB
Age rating4+4+
DeveloperRamesh Natarajan KailadSteven Mason

In-app purchases

None

BATTech by RN

No in-app purchases

None

Where's My Battery?

No in-app purchases

Questions

Is BATTech by RN free?
BATTech by RN is free to download, with no in-app purchases.
Is Where's My Battery? free?
Where's My Battery? is free to download, with no in-app purchases.
Do BATTech by RN or Where's My Battery? have ads?
Where's My Battery? shows ads; BATTech by RN does not.
Which is updated more often, BATTech by RN or Where's My Battery??
BATTech by RN ships an update every 2 months, and Where's My Battery? every 2 weeks. Most recently, BATTech by RN was updated on November 8, 2026 and Where's My Battery? on October 31, 2026.

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