Comparison

VoltLog vs CommuniDevice

Price, ratings, monetisation and update history for both apps, side by side โ€” 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

CommuniDevice

Features
Read full description

CommuniDevice is an honest, at-a-glance health dashboard for your iPhone and iPad. See exactly how your device is doing right now โ€” storage, memory, battery, temperature, CPU, and network โ€” with clean live gauges and a single overall Device Health Score. What CommuniDevice shows you: - Storage: how much space is actually free, with a trend chart so you can see it filling up before it becomes a problem, plus guidance on how to reclaim space. - Battery & Power: charge level, charging state, and Low Power Mode, alongside how warm your device is running. - Memory & CPU: how much RAM your device has, how much CommuniDevice itself uses, and how hard the processor is working โ€” including 1, 5, and 15-minute load averages and per-core activity. - Thermal: a live temperature status that most monitors ignore, so you know when your device is running hot. - System: network data counters, your local and external IP address, and a full device spec sheet (model, chip, screen, iOS version). Trends and alerts: CommuniDevice quietly logs these readings on your device so you get trend charts over time, and while it is open it can alert you when storage runs low, the device gets hot, or the battery is low โ€” always with plain-language guidance on what to do next. Honest by design: CommuniDevice is a monitor, not a "cleaner." iOS intentionally prevents any app from seeing or controlling other apps, so CommuniDevice will never pretend to "boost," "free RAM," or close apps for you. It shows you real, device-level information and helps you understand it. Your readings are processed on your device and are never uploaded; the app itself uses the network for ads, remote config and anonymous usage analytics, like the rest of our free apps. CommuniDevice is 100% free for everyone, supported by ads: after a free first day, watching one short ad unlocks the app for 12 hours at a time. No subscriptions and no in-app purchases โ€” every feature, including trends, alerts, the full spec sheet, and copy/share, is available to every user. Have an idea or found a bug? Request features and suggest improvements right from the in-app CommuniDev tab โ€” we keep the app free for everyone, forever.

Screenshots

VoltLog4 screens
CommuniDevice4 screens

Verdict

The call

The clearest difference is in-app purchases: CommuniDevice at none against VoltLog's 3. VoltLog's advantage is ads (none vs shown) and update cadence (every 10 days vs every 3 weeks). On price and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. VoltLog sells 3 in-app purchases, starting at $9.99 per month. CommuniDevice asks for nothing beyond the download.

UpkeepUpdate frequency

VoltLog ships an update every 10 days, CommuniDevice every 3 weeks. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

Scorecard4 real differences ยท 2 level
VoltLog versus CommuniDevice: the parameters behind the verdict, then further details
ParameterVoltLogCommuniDevice
PriceFreeFree
Update frequencyEvery 10 days โ€” betterEvery 3 weeks
AdsNo โ€” betterYes
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS16.0 โ€” better26.0
Further details โ€” not scored
Size54 MB9 MB
Age rating4+4+
DeveloperFilip RusinCommuniDev LLC

In-app purchases

3 purchases

VoltLog

Subscriptions2
  • Monthly Pro$9.991 Month
  • Yearly Pro$39.991 Year
One-time1
  • Lifetime Pro$99.99
None

CommuniDevice

No in-app purchases

Questions

Is VoltLog free?
VoltLog is free to download, with in-app purchases available.
Is CommuniDevice free?
CommuniDevice is free to download, with no in-app purchases.
Do VoltLog or CommuniDevice have ads?
CommuniDevice shows ads; VoltLog does not.
Which is updated more often, VoltLog or CommuniDevice?
VoltLog ships an update every 10 days, and CommuniDevice every 3 weeks. Most recently, VoltLog was updated on October 25, 2026 and CommuniDevice on October 26, 2026.

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