Battery Memo: AA/AAA Inventory

Pop off the cover - AA or AAA? Log each device with a photo, see every device a battery powers, and tap + / - to count spares. No ads. Everything stays on your phone.

"Wait - does this remote take AA or AAA?" Battery Memo ends the guessing you do with the cover already off.

Save each battery-powered thing in your home - remotes, thermometers, clocks, toys, flashlights - together with the battery it takes and a photo of it. Built for one job: opening the app and knowing, right now, before you buy, hunt, or swap.

What it does

• Save a device with its battery type and how many it takes (a photo is enough - the name is optional)
• Open any battery to see every device in your home that uses it
• Count your spares by type, and change the count with the + / - buttons right in the list
• Empty types are flagged as out of stock, in color
• Photograph the drawer or shelf where each battery lives, so you remember where you put it
• Choose from AA, AAA, C, D, N, 9V, CR2032, CR2025, CR2016, LR44, SR44, CR123A and CR2 - or type in any battery that is not on the list
• Switch between English and Japanese any time in Settings

Use it when

• You are heading to the store and want to know what is already in the drawer
• You want the battery type before you unscrew the back of a remote or thermometer
• You bought spares months ago and cannot remember where you stored them
• You want the rest of the household to find the right battery without asking you

Nothing to learn Saving a device is two taps: pick a photo, pick a battery. No typing required. Changing a count is one tap in the list. Long-press any card to edit or delete it.

No nagging There are no replacement-date logs and no reminder notifications. This app is for the moment you want to check something, not for managing a schedule.

Your data Everything you save stays on your iPhone. There is no account to create, no sign-in, no ads, and no analytics. Nothing is sent to an outside server. Photos are re-compressed when saved, so capture dates and GPS locations (Exif) are not kept. There is no cloud sync, which also means your entries do not transfer to a new phone.

Pricing The app is free to download and free to use. Battery stock entries are unlimited. You can save up to 5 devices for free. Only if you want a 6th device and beyond, a single one-time purchase removes the limit. There is no monthly or yearly subscription. Reaching the limit never hides or deletes the devices you already saved - it only stops new ones. If you bought the earlier paid version, the limit is removed for you at no extra charge.

Requirements iPhone only (iOS 17.0 or later)