BatterySync vs LookCalendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BatterySync
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BatterySync keeps you on top of every device's battery level — all from a single screen. Whether you're juggling multiple phones and tablets, BatterySync syncs them all to the cloud in real time so you always know what's charged and what isn't. KEY FEATURES · Real-time sync Your battery level is automatically uploaded to the cloud and instantly visible on all your other devices. No manual refresh needed. · Multi-device support Manage every device under one account. Stay connected and monitor your battery status seamlessly across your various mobile devices. · Battery history — up to 90 days (Premium) View your battery trends over time with an easy-to-read line chart. Spot charging patterns and usage habits at a glance. · Smart alerts (Premium) Get push notifications when a device's battery drops below your chosen threshold, when charging completes, or when a device hasn't updated in a while. Fully customisable. · CSV export (Premium) Download your battery history as a CSV file and analyse it however you like. FREE PLAN Register up to 3 devices and use all core features at no cost. PREMIUM PLAN Subscribe monthly or yearly to unlock unlimited devices, 90-day history, smart alerts, and CSV export. Terms of Use (EULA): https://www.apple.com/ca/legal/internet-services/itunes/ca/terms.html Never get caught off guard by a dead battery again.
LookCalendar
See your entire month on your Lock Screen and Apple Watch. Customize today's date highlight and calendar styles. Pro features allow instant opening of your preferred calendar app from the widget.
- Full month view on Lock Screen
- Today's date highlighting
- Multiple calendar styles
- Weekday display toggle
- Tap widget to open preferred calendar app
- Monthly calendar on Apple Watch
- Calendar event indicators
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• View the full month at a glance on your Lock Screen • Highlight today’s date • Choose from multiple today-date highlight styles • Choose from multiple calendar styles • Toggle weekday display On/Off ■ Pro Features • Tap the Lock Screen widget to instantly open your preferred calendar app (Apple Calendar, Google Calendar, NAVER Calendar, TimeTree, Minical, and Signaling) • Monthly calendar on Apple Watch • Calendar event indicators • Access to all future Pro features
Screenshots
Verdict
The clearest difference is in-app purchases: LookCalendar at none against BatterySync's 2. LookCalendar also leads on update cadence (every 2 days vs every 2 months). BatterySync's advantage is iOS requirement (15.0 vs 18.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. BatterySync sells 2 in-app purchases, starting at $3.99 per month. LookCalendar asks for nothing beyond the download.
BatterySync ships an update every 2 months, LookCalendar every 2 days. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.
| Parameter | BatterySync | LookCalendar |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 61 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Epsilon Labs, LLC. | eunkyu choi |
In-app purchases
BatterySync
- BatterySync Premium Monthly$3.991 Month
- BatterySync Premium Yearly$39.991 Year
LookCalendar
No in-app purchases
