Battery HD+ vs Battery Day
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Battery HD+
This app provides a detailed battery monitoring experience for your phone or tablet. It offers calibration features for increased accuracy and displays estimated usage times for various activities, from listening to music to GPS navigation. It also includes charge alerts and a widget for quick access to information.
- Battery calibration
- Usage time estimates
- Charge alerts
- Widget support
- Detailed usage charts
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This is the perfect battery monitor for your phone or tablet. It is simple, beautiful and can be calibrated specially for your device. - Widget - Charge Alerts - Usage chart Instantly know how many hours you have left for: - Listening to music - Watching video - Talking on the phone - Internet Browsing ( WiFi / Edge / 3G / 4G ) - Standby - Time left to recharge - Time to use LED Flashlight - 2D and 3D Games - Reading books - GPS navigation - Video chat - Taking photos - Recording videos If you have a new or rare device, please run calibration tests to share your results with the community and make this app even more precise ! Try it now ! It's simply the best at what it does.
Battery Day
This app provides an at-a-glance estimate of your device's battery discharge time. It offers various widgets, gauges, and charts to visualize battery level history and predict remaining usage. The app requires active widget usage to record battery consumption.
- Battery discharge time estimation
- Variety of widgets, gauges, and charts
- Battery level history visualization
- Battery usage prediction
- Color-coded battery usage indication
- Requires active widget for data recording
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Battery Day estimates the time of your battery discharge on your iPhone, iPad and Apple Watch. Get your battery remaining time at a glance thanks to a variety of widgets, gauges and charts. Visualize your battery level history with a chart including battery level prediction and color for battery usage indication. In order for the app to record your battery usage, Battery Day must be active as a widget.
Screenshots
Verdict
The clearest difference is price: Battery HD+ at Free against Battery Day's $2.99. Battery HD+ also leads on review sentiment (75% vs 33%) and rating (4.5 vs 4.0). Battery Day's advantage is ads (none vs shown). On in-app purchases, 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
Battery HD+ is free to download; Battery Day costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Battery HD+ holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Battery HD+ has 2.7K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 75% of Battery HD+'s written reviews are positive against 33% of Battery Day's.
Battery HD+ ships an update every 2 months, Battery Day every 5 months. The most recent releases landed on September 24, 2026 and September 3, 2026 respectively.
| Parameter | Battery HD+ | Battery Day |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.5 (2.7K ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 74.6% of reviews — better | 33.3% of reviews |
| Number of ratings | 2.7K — better | 1 |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, Apple Watch |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 62 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | smalltech sarl | Eliott Morgensztern |
Customer experience
Battery HD+
Battery Day
Bugs and requests
Battery HD+
Reported bugs
3 issues- Calibration never completes
- Battery level not detected
- Incorrect battery percentage displayed
Requested features
4 requests- Battery health monitoring
- Battery usage by app breakdown
- Improved charging notifications
- Apple Watch support
Battery Day
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Battery HD+
No in-app purchases
Battery Day
No in-app purchases
Questions
Is Battery HD+ free?
Is Battery Day free?
Which has better reviews, Battery HD+ or Battery Day?
Do Battery HD+ or Battery Day have ads?
Which is updated more often, Battery HD+ or Battery Day?
Other comparisons
