Goal Zero Power vs First Days
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Goal Zero Power
Monitor, manage, and optimize your portable power devices from anywhere. Track battery levels, control ports remotely, and receive instant notifications for power events. Fine-tune settings for smart power management and access helpful guides and support.
- Live battery monitoring
- Remote outlet control
- Push notifications
- Smart power management
- Historical usage tracking
- Firmware updates
- In-app guides and support
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Power, Anywhere You Go Whether you're off-grid in the backcountry, powering through an outage at home, or keeping your gear charged on a weekend trip—the Goal Zero app puts complete control in your pocket. Monitor, manage, and optimize your Goal Zero ecosystem from across the room or across the globe. Real-Time Command Center • Live monitoring of battery levels, input, and output—down to the watt • Instant push notifications for charge milestones and power events • Control outlets and ports remotely, no matter where you are • Access detailed metrics and insights not shown on your device display Smart Power Management • Fine-tune settings to match your power needs and usage patterns • Track historical usage to plan your next adventure—or your next outage Always Up to Date • Seamless firmware updates deliver new features and improvements Help When You Need It • In-app guides and resources to help you get the most from your gear • Quick access to support—help is just a few taps away • Product education and tips built right into the experience Built for Explorers & Engineers Alike Goal Zero gear is trusted on rugged expeditions and in living rooms around the world. The app brings that same reliability to your fingertips—clean interface, powerful features, zero compromise.
First Days
This app simplifies newborn tracking for new parents, allowing easy logging of feeding, diapers, and sleep. It offers voice command integration with Siri and provides clear data visualization through interactive charts. Privacy is a core focus, with data syncing via iCloud and no advertisements or invasive tracking.
- Track feeding, diapers, and sleep
- Siri voice command integration
- Interactive data charts
- iCloud data syncing
- Data export to CSV
- Customizable notifications
- Caregiver sharing (Premium/Pro)
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First Days is a simple, private newborn tracker made by a new parent, for new parents. Being a new parent is its own challenge, the last thing you should need to worry about is a pen-and-paper spreadsheet to track the last time they ate and for how long, when they made a dirty diaper… In First Days, with just a tap, you can track all the essentials; - Feeding - Diapers - Sleep And for those times when baby is being extra spicy and it’s “all hands on deck”, you can use voice commands with Siri to add events or start a session. Reviewing your baby’s data in the app couldn’t be simpler, with clean, interactive charts. Privacy is a fundamental human right, and First Days was built with this principle front and center. - Your data syncs to your other devices automatically through your iCloud account - No signing up for yet-another online service; your iCloud *is* your account - No advertisements, in-app usage tracking, or any other invasive nonsense - Your data is YOURS; export all your baby’s data any time to a simple CSV format In addition to everything above, First Days comes loaded with great features. To name a few: - Customizable Feeding notifications - Daily and Weekly Smart Charts - Various accessibility features - Dark/Light mode - App Icon customization - Left-handed mode - Shortcuts integration To support ongoing development, First Days offers two subscription tiers that unlock even more. For the price of a few cups of coffee a year, the Premium subscription unlocks the following: - Caregiver Sharing! Securely share your baby’s profile with other caregivers, so they can view and log events for your baby as well. Share with a simple link, and revoke access any time. - 5 baby profiles (up from 2) - Smart Daily Goals that grow with your baby, based on recommendations from the American Academy of Pediatrics (aap.org) - More than 30 days of history visualized in-app (all data remains exportable with or without a subscription) - Trends and Insights, to help you see how your baby’s metrics are changing over time at a glance A Pro subscription unlocks all of the above, plus unlimited baby profiles. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: First Days at 100% against Goal Zero Power's 34%. First Days also leads on rating (5.0 vs 4.3) and update cadence (every 6 days vs every 3 months). Goal Zero Power's advantage is in-app purchases (none vs 5) and ratings volume (1.3K vs 2). On price, ads and device support 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. First Days sells 5 in-app purchases, starting at $0.99 per month. Goal Zero Power asks for nothing beyond the download.
First Days holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Goal Zero Power has 1.3K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 34% of Goal Zero Power's written reviews are positive against 100% of First Days's.
Goal Zero Power ships an update every 3 months, First Days every 6 days. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.
| Parameter | Goal Zero Power | First Days |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (1.3K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 34.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.3K — better | 2 |
| Update frequency | Every 3 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch — better |
| Requires iOS | 15.1 — better | 27.1 |
| Further details — not scored | ||
| Size | 68 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Goal Zero LLC | Gabrielle Miseroy |
Customer experience
Goal Zero Power
First Days
Bugs and requests
Goal Zero Power
Reported bugs
4 issues- App crashes
- Firmware update issues
- Connectivity problems
- Inaccurate data display
Requested features
4 requests- Native iPad app
- Apple Watch support
- Better integration with expansion tanks
- Temperature monitoring and alerts
First Days
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Goal Zero Power
No in-app purchases
First Days
- First Days Premium (Monthly)$0.991 Month
- First Days Premium$9.991 Year
- First Days Pro (Monthly)$9.991 Month
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- First Days Pro$99.991 Year
- Icon Pack 1$0.99









