Comparison

VoltLog vs Battery Inventory

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

Head to head
About

VoltLog

Features
Read full description

VoltLog is a field tool for FPV pilots who use LiPo, LiHV, and Li-ion battery packs without smart battery electronics. After a flight, log the pack voltage and VoltLog shows the safety status of each battery on a clear, color-coded dashboard. The goal is simple: know which packs are safe for storage, which need charging, and which should not be left full for too long. Built for FPV battery routines: - Track battery packs with name, brand, cell count, capacity, chemistry, and cycle count - Log voltage per cell with a large custom keypad - See STORAGE, CHARGED, FULL, FULL RISK, DISCHARGED, and CRITICAL states at a glance - Open full cycle history for every pack - Set global and per-battery alert timing - Use local notifications for risky full packs and low-voltage reminders - Work offline-first with local Drift storage - Secure or switch accounts with Supabase Auth when you want cloud-backed data VoltLog is not a charger, cell checker, or battery management system. It is a practical logbook for pilots who already measure voltage and want a faster way to keep track of many packs. Designed for the field, not a desk: - High-contrast dark dashboard - Large battery tiles - Fast voltage entry without the system keyboard - Battery archive for retired packs - English and Polish interface If your FPV case has more packs than memory can reliably track, VoltLog gives you one place to see what needs attention before battery degradation becomes expensive. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Battery Inventory

Features
Read full description

Never wonder if you have enough battery power again. Battery Inventory helps you organize every cordless power tool battery, charger and tool in one place. Instantly see what's charged, what's charging, what's installed, and what's missing. Whether you're a DIY enthusiast, gardener, contractor or workshop owner, you'll always know if you're ready before starting your next job. Everything in one place • Organize all your battery packs • Track charge levels and battery health • Assign batteries to tools • Manage chargers and charging slots • Record purchase dates, notes and photos • Keep your entire battery collection organized Plan your next job with confidence Battery Inventory goes beyond simple inventory. Create a job with the tools you'll use, and Battery Inventory automatically tells you: • Whether you have enough charged batteries • Which batteries need charging • When charging should begin • Which charger to use • Whether every tool will be ready on time No more discovering empty batteries halfway through a project. Smarter charging • Live charging progress • Estimated time until fully charged • Charge completion notifications (Pro) • Quick charge updates using percentages or battery LED indicators Find any battery instantly • Generate QR codes for every battery • Print battery labels • Scan a QR code to instantly open a battery • Pair NFC tags for one-tap identification • Powerful search across your inventory • Organize batteries by brand Know where every battery is Track every battery as: • Available • Installed in a tool • Charging • Borrowed • Missing • Retired Privacy first Battery Inventory was built with privacy in mind. • No account required • Works completely offline • Your data stays on your device • No third-party analytics Battery Inventory Pro Unlock advanced features including: • Unlimited batteries • Unlimited tools • Unlimited chargers • Advanced Job Planning • Charge completion notifications Perfect for DIY enthusiasts, home workshops, contractors, electricians, carpenters, landscapers and anyone managing cordless power tool batteries. Supports batteries and tools from many popular brands, including DeWalt, Makita, Milwaukee, Bosch, Ryobi, Einhell, Parkside, Hilti, Stihl, EGO and more. Organize your cordless tool batteries, manage chargers, print labels, and always know which batteries are ready for work. Stop guessing. Stay organized. Always have enough power for the next job. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

VoltLog4 screens
Battery Inventory4 screens

Verdict

The call

VoltLog and Battery Inventory are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

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

Both are free to download. VoltLog sells 3 in-app purchases, starting at $9.99 per month and Battery Inventory sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

VoltLog ships an update every 10 days, Battery Inventory every 9 days. Both last shipped on October 6, 2026.

ScorecardNo meaningful differences
VoltLog versus Battery Inventory: the parameters behind the verdict, then further details
ParameterVoltLogBattery Inventory
PriceFreeFree
Update frequencyEvery 10 daysEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size54 MB6 MB
Age rating4+4+
DeveloperFilip RusinTamas Bereczki

In-app purchases

3 purchases

VoltLog

Subscriptions2
  • Monthly Pro$9.991 Month
  • Yearly Pro$39.991 Year
One-time1
  • Lifetime Pro$99.99
2 purchases

Battery Inventory

Subscriptions2
  • Battery Inventory Pro Monthly$2.991 Month
  • Battery Inventory Pro Yearly3 Days trial$19.991 Year

Questions

Is VoltLog free?
VoltLog is free to download, with in-app purchases available.
Is Battery Inventory free?
Battery Inventory is free to download, with in-app purchases available.
Do VoltLog or Battery Inventory have ads?
Neither VoltLog nor Battery Inventory shows ads.
Which is updated more often, VoltLog or Battery Inventory?
VoltLog ships an update every 10 days, and Battery Inventory every 9 days. Most recently, VoltLog was updated on October 6, 2026 and Battery Inventory on October 6, 2026.

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