Comparison

Goal Zero Power vs First Days

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Live battery monitoring
  • Remote outlet control
  • Push notifications
  • Smart power management
  • Historical usage tracking
  • Firmware updates
  • In-app guides and support
Features
Read full description

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.

About

First Days

Features
Read full description

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

Goal Zero Power4 screens
First Days4 screens

Verdict

The call

The clearest difference is in-app purchases: Goal Zero Power at none against First Days's 4. Goal Zero Power also leads on iOS requirement (13.4 vs 26.2). First Days's advantage is update cadence (every 9 days vs every 3 months). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. First Days sells 4 in-app purchases, starting at $0.99 per month. Goal Zero Power asks for nothing beyond the download.

UpkeepUpdate frequency

Goal Zero Power ships an update every 3 months, First Days every 9 days. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
Goal Zero Power versus First Days: the parameters behind the verdict, then further details
ParameterGoal Zero PowerFirst Days
PriceFreeFree
Rating4.3 (1.2K ratings) — better—
Positive reviews34.6% of reviews—
Number of ratings1.2K — better—
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS13.4 — better26.2
Further details — not scored
Size54 MB45 MB
Age rating4+4+
DeveloperGoal Zero LLCGabrielle Miseroy

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

None

Goal Zero Power

No in-app purchases

4 purchases

First Days

Subscriptions4
  • First Days Premium (Monthly)$0.991 Month
  • First Days Premium$9.991 Year
  • First Days Pro (Monthly)$9.991 Month
Show 1 more
  • First Days Pro$99.991 Year

Questions

Is Goal Zero Power free?
Goal Zero Power is free to download, with no in-app purchases.
Is First Days free?
First Days is free to download, with in-app purchases available.
Do Goal Zero Power or First Days have ads?
Neither Goal Zero Power nor First Days shows ads.
Which is updated more often, Goal Zero Power or First Days?
Goal Zero Power ships an update every 3 months, and First Days every 9 days. Most recently, Goal Zero Power was updated on October 21, 2026 and First Days on October 7, 2026.

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