EbbyCalc vs VoltLog
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
EbbyCalc
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EbbyCalc is a simple to use calculator targeted mainly at iPads, with large buttons, memory, and operations suitable for basic household expense calculations.
VoltLog
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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/
Screenshots
Verdict
The clearest difference is in-app purchases: EbbyCalc at none against VoltLog's 3. EbbyCalc also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). VoltLog's advantage is update cadence (every 10 days vs every 9 months). On price and ads 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
Both are free to download. VoltLog sells 3 in-app purchases, starting at $9.99 per month. EbbyCalc asks for nothing beyond the download.
EbbyCalc ships an update every 9 months, VoltLog every 10 days. The most recent releases landed on September 21, 2026 and July 17, 2026 respectively.
| Parameter | EbbyCalc | VoltLog |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Every 10 days β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 13.0 β better | 16.0 |
| Further details β not scored | ||
| Size | 1 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Ansel Rognlie | Filip Rusin |
In-app purchases
EbbyCalc
No in-app purchases
VoltLog
- Monthly Pro$9.991 Month
- Yearly Pro$39.991 Year
- Lifetime Pro$99.99





