Comparison

BatterySync vs LockBoard

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

Head to head
About

BatterySync

Features
Read full description

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 Ā· Real-time sync Your battery level is automatically uploaded to the cloud and instantly visible on all your other devices. No manual refresh needed. Ā· Multi-device support Manage every device under one account. Stay connected and monitor your battery status seamlessly across your various mobile devices. Ā· 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. Ā· 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. Ā· 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.

About

LockBoard

Features
Read full description

LockBoard keeps your notes on your Lock Screen wallpaper — always visible, zero effort. The fundamental weakness of to-do apps: they only work if you open them. LockBoard turns your note itself into your wallpaper, so it catches your eye every time you pick up your phone. Like a sticky note on the fridge, it works without you even trying — on the screen you look at more than any other. ā–  Just write and close - Open → write → close. That's all - The wallpaper image refreshes automatically the moment you close the app - One board only. No lists to manage, nothing to organize ā–  What you see is what you get - The preview shows exactly what your Lock Screen will look like - Backgrounds: 6 calm solid colors, 6 gradients, or a photo you love - Adjust text size, vertical position, and a readability backdrop - The layout stays clear of the Lock Screen clock and bottom buttons ā–  How it works (one-time setup, about 2 minutes) iOS doesn't let apps change your wallpaper directly. LockBoard pairs with Apple's official Shortcuts app to update it. All you set up the first time: add the ready-made shortcut with one tap, assign it to a button on your Lock Screen, and write your first note from that button. The in-app wizard walks you through it screen by screen — about 2 minutes. After that, you can jot things down straight from the Lock Screen button. To have edits you make inside the app applied automatically too, you can go on to set up the optional "when the app closes" automation. ā–  Great for - Keeping this week's goals in sight without relying on willpower - Anyone who could never stick with a to-do app - Shopping and packing lists you can check at a glance - Words you live by, always in view - Drilling facts for exams and certifications ā–  7-day free period and pricing - Try every feature free for 7 days (168 hours) after your first successful shortcut action - The free period does not start a subscription or charge you automatically - After it ends, you can still view and copy your memo, share the wallpaper, and keep your current Lock Screen wallpaper in place. A purchase is required to write new content or update the wallpaper - $2.99 monthly / $14.99 yearly / $39.99 lifetime - Monthly and annual plans renew automatically after purchase until canceled. You can cancel anytime in App Store settings. The price shown on the purchase screen is the price that applies ā–  Privacy - Your notes and photos never leave your device - No personally identifiable data is collected. In addition to anonymous usage statistics, RevenueCat processes purchase status, purchase history, and a random anonymous ID to provide purchases. This data is not linked to you or used for tracking - Your free-period start time is synced through Apple's iCloud KVS within your own iCloud account so it carries across reinstalls and device changes - No account required

Screenshots

BatterySync4 screens
LockBoard4 screens

Verdict

The call

The clearest difference is in-app purchases: LockBoard at none against BatterySync's 2. LockBoard also leads on update cadence (weekly vs every 2 months). BatterySync's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price and ads there is nothing between them.

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. BatterySync sells 2 in-app purchases, starting at $3.99 per month. LockBoard asks for nothing beyond the download.

UpkeepUpdate frequency

BatterySync ships an update every 2 months, LockBoard weekly. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

Scorecard4 real differences Ā· 2 level
BatterySync versus LockBoard: the parameters behind the verdict, then further details
ParameterBatterySyncLockBoard
PriceFreeFree
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size61 MB22 MB
Age rating4+4+
DeveloperEpsilon Labs, LLC.Tatsuya Hirano

In-app purchases

2 purchases

BatterySync

Subscriptions2
  • BatterySync Premium Monthly$3.991 Month
  • BatterySync Premium Yearly$39.991 Year
None

LockBoard

No in-app purchases

Questions

Is BatterySync free?
BatterySync is free to download, with in-app purchases available.
Is LockBoard free?
LockBoard is free to download, with no in-app purchases.
Do BatterySync or LockBoard have ads?
Neither BatterySync nor LockBoard shows ads.
Which is updated more often, BatterySync or LockBoard?
BatterySync ships an update every 2 months, and LockBoard weekly. Most recently, BatterySync was updated on October 25, 2026 and LockBoard on October 18, 2026.

Other comparisons