NASA Battery Viewer vs one.com Mail
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
NASA Battery Viewer
Monitor battery information from a Bluetooth device with customizable display options. Configure units, view charging status, and rename your device for easy identification.
- Customizable display fields
- Primary field selection
- Charging/discharging indicator
- Unit property configuration
- Bluetooth LE communication
- Automatic device connection
- Unit renaming
Read full descriptionHide full description
The NASA Battery Viewer displays the battery monitor information in a clear and simple way. The app allows you to configure which fields are displayed and where, allowing you to choose the most important field as the primary field. The charging/discharging display field will appear in red when discharging. The app also allows you to set the unit's properties (capacity, operating temperature, unit name). The app communicates with the BM-1 unit over Bluetooth LE. It will automatically connect to your BM-1 unit with the configured Bluetooth name. If the unit's name doesn't match any BM-1 units in range will be offered to you so you can choose to connect. The unit rename feature allows you to assign your own name to your BM-1 unit.
one.com Mail
Access and manage your email on the go with this intuitive application. Read, write, and organize your messages efficiently from your mobile device, ensuring you stay connected to important conversations without needing a computer.
- Manage multiple email accounts
- Organize inbox with filters
- Read emails in distraction-free layout
- Compose and send emails
- Receive new email notifications
- Perform actions on multiple emails
Read full descriptionHide full description
Stay connected to your inbox wherever you are. Read, write, and manage your email from your phone, whether you're at work, at home, or on the move. The one.com Mail app gives you everything you need in one place. Read long emails comfortably, reply in seconds, keep your inbox organized, and stay connected to the conversations that matter most. Designed for a fast and intuitive experience, the app helps you stay productive without opening your laptop. Manage your inbox โข Perform actions on multiple emails at once. โข Add several accounts and easily switch between them. โข Filter unread emails to find what matters faster. โข Get notifications about new emails. Read with ease โข Read emails in a clean, distraction-free layout. โข View newsletters, images, and attachments comfortably. โข Enjoy a reading experience designed for your phone. Reply in seconds โข Write and send emails from your phone. โข Switch seamlessly between reading and replying.
Screenshots
Verdict
The clearest difference is review sentiment: NASA Battery Viewer at 100% against one.com Mail's 0%. NASA Battery Viewer also leads on iOS requirement (11.3 vs 15.0). one.com Mail's advantage is update cadence (every 9 days vs every 4 months). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
NASA Battery Viewer ships an update every 4 months, one.com Mail every 9 days. The most recent releases landed on November 2, 2026 and November 1, 2026 respectively.
| Parameter | NASA Battery Viewer | one.com Mail |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews โ better | 0.0% of reviews |
| Update frequency | Every 4 months | Every 9 days โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.3 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 9 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Neverest Limited | One.com A/S |
Customer experience
NASA Battery Viewer
one.com Mail
In-app purchases
NASA Battery Viewer
No in-app purchases
one.com Mail
No in-app purchases
Questions
Is NASA Battery Viewer free?
Is one.com Mail free?
Do NASA Battery Viewer or one.com Mail have ads?
Which is updated more often, NASA Battery Viewer or one.com Mail?
Other comparisons















