Battery Master 12V vs Battery Widget
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Battery Master 12V
This tool detects and tests lead-acid batteries, assessing CCA and health. It calculates remaining battery life based on temperature and CCA data. Users can also test cranking and charging systems, with all results shareable and printable.
- Lead-acid battery detection
- Test battery CCA and health
- Calculate available use life
- Test cranking system
- Test charging system
- Share and print test results
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Battery Master is the detection tool for lead acid battery. By installed on battery, it can intelligently test battery CCA and health condition, calculate battery available use life based on temperature and CCA data sheet. When phone is close to device, the app will automatically obtain battery test result. Also, user can alternatively test battery health, cranking system and charging system. All saved history test results can be shared and printed out.
Battery Widget
Track your device's battery level with customizable widgets and fun sticker packs. Receive smart charging alerts to help preserve battery health and enjoy witty quotes with every check. The app offers a dark, low-power alert screen for better visibility and power conservation.
- Glanceable battery widgets
- Funny quote feed
- Customizable sticker packs
- Stickers synced to battery percentage
- Smart charge percentage alerts
- Dark, low-power alert screen
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Supercharge battery tracking with speed, personality, and fun. See your battery level at a glance with widgets, enjoy a stream of witty quotes, and customize everything with playful sticker packs that change with every percent and charging state. Set smart charge alerts at your chosen percentage to help protect battery health, with a dark, low-power alert screen that’s easy on your eyes (and your battery). Key Features Glanceable battery widgets View your battery level and status directly from your Home or Lock Screen—no need to open the app. Endless funny quotes Scroll through a constantly refreshing feed of quotes that fit your mood and turn every battery check into a tiny laugh. Rich, colorful sticker packs Discover and collect eye-catching sticker sets to give your battery a look that matches your style. Stickers synced to % and status Pick stickers that automatically update at 10%, 20%, … 100%, and react to charging, full, or idle battery states. Charge-percent alerts for battery care Set a target like 80%, 85%, or 90% and get notified right away so you can unplug and support long-term battery health.* Dark alert screen Minimal, dimmed alert screen that keeps notifications clear while helping conserve power. *The app cannot control your device hardware or stop charging automatically. It sends timely alerts so you can unplug at the optimal moment. Why You’ll Enjoy It • Instant battery info with a quick glance. • A little joy every time you open the app (thanks to quotes + stickers). • Gentle support for keeping your battery healthier for longer. • Simple, light, and a pleasure to use. Download now to track smarter, smile more, and enjoy every single percent.
Screenshots
Verdict
The clearest difference is review sentiment: Battery Widget at 50% against Battery Master 12V's 0%. Battery Widget also leads on rating (4.0 vs 3.4) and update cadence (every 9 days vs every 6 weeks). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Battery Widget holds the better App Store score, 4.0 against 3.4. Both are backed by a comparable volume of ratings — 5 and 22 respectively. Written reviews point the same way: 0% of Battery Master 12V's written reviews are positive against 50% of Battery Widget's.
Battery Master 12V ships an update every 6 weeks, Battery Widget every 9 days. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.
| Parameter | Battery Master 12V | Battery Widget |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (5 ratings) | 4.0 (22 ratings) — better |
| Positive reviews | 0.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 5 | 22 — better |
| Update frequency | Every 6 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 39 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Leagend Optoelectronics Co., Ltd. | TERMUX LIMITED LIABILITY COMPANY |
Customer experience
Battery Master 12V
Battery Widget
In-app purchases
Battery Master 12V
No in-app purchases
Battery Widget
No in-app purchases
Questions
Is Battery Master 12V free?
Is Battery Widget free?
Which has better reviews, Battery Master 12V or Battery Widget?
Do Battery Master 12V or Battery Widget have ads?
Which is updated more often, Battery Master 12V or Battery Widget?
Other comparisons
