C% vs Wallby
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
C%
Track the battery life of devices without built-in indicators. Log charges to get personalized estimates based on your usage habits. View all devices sorted by urgency and receive timely notifications.
- Personalized battery estimates
- Device urgency sorting
- Home screen widgets
- Timely charging notifications
- Supports numerous device types
- Charge history and usage charts
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How long has your electric shaver actually been sitting on empty? When did you last charge your earbuds? For devices without their own battery indicator, it's genuinely hard to know. C% - Charging Tracker keeps tabs on all of them. Tap once to log a charge, and the app estimates how much battery life is left based on your real habits, not just spec-sheet numbers. • Smart and personalised After a few charges, C% learns your actual usage pattern for each device. Your laptop that never makes it the full 20 hours? Your earbuds you charge twice a day? The estimates adjust to match. The more you use it, the more accurate it gets. • Everything at a glance The main screen shows all your devices sorted by urgency, so the ones that need attention rise to the top. A summary bar at the top tells you how many are fine, and how many need charging right now. Tap any device to see its full charge history, weekly usage chart, and how your habits compare to expected battery life. • Widgets that actually do something Add the home screen widget to see battery status for your most important devices without opening the app. Tap the bolt button right from the widget to log a charge instantly. • Notifications that know when to stop C% sends a heads-up before each device's battery is predicted to run out, and a nudge if you've gone unusually long without charging. No constant buzzing, just timely reminders when they matter. • Built for real life Supports smartphones, tablets, smartwatches, wireless earbuds, laptops, game controllers, e-readers, electric shavers, smart toothbrushes, drawing tablets, portable speakers, and more.
Wallby
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Make your Home and Lock Screen truly yours — beautiful widgets, wallpapers and custom app icons, all built right on your iPhone. Wallby is the honest customization app. Everything you make is built on your iPhone. No account, nothing uploaded. It does show advertising, and a Wallby Pro subscription removes it. WIDGETS FOR EVERYTHING - Clock, date and live countdowns that never freeze - Quotes, monograms, battery, calendar and your own photos - Curated themes, fonts and colors for Home Screen and Lock Screen - Every widget you make gets its own name, so your screen stays tidy STUNNING WALLPAPERS - Gorgeous gradients and patterns, generated on your device - Save to Photos in full quality, then set them in a couple of taps CUSTOM APP ICONS - Design themed icons for your favorite apps - We are upfront about how iOS icons really work — no hidden surprises HONEST BY DESIGN iOS does not let any app place a widget, set a wallpaper, or replace an icon for you. Wallby makes them beautiful, then shows you exactly how to add them — never a fake "Applied!". PRIVATE BY DESIGN No account. No cloud of ours. Your photos never leave your iPhone. The advertising is loaded over the network by Google's ad kit, and a Wallby Pro subscription removes it. FREE TO START Use every style for free with a small watermark. Upgrade to Wallby Pro to remove the watermark and unlock all premium themes and wallpaper packs. Wallby Pro subscription options: - Weekly - Yearly (best value) Payment is charged to your Apple Account. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://wallby.vercel.app/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Wallby at none against C%'s 1. C%'s advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement 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. C% sells 1 one-off in-app purchase. Wallby asks for nothing beyond the download.
C% ships an update every 3 weeks, Wallby fortnightly. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.
| Parameter | C% | Wallby |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Mounif Fatayri | Levin David Schwab |
In-app purchases
C%
- Unlock Unlimited Devices$1.99
Wallby
No in-app purchases









