Comparison

Emtec Connect vs Netzero for Powerwall

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

Head to head
About

Emtec Connect

Wirelessly free up storage on your mobile devices by backing up photos, music, and videos. Stream your media library without an internet connection and easily share files with others. Manage your content with an intuitive interface.

Highlights
  • Wireless storage backup
  • Media streaming without internet
  • File sharing
  • Intuitive file management
  • Free up device space
Features
Read full description

Instantly free up space on your mobile devices wirelessly, take and enjoy your multimedia library wherever you go ! Never leave without your essential travel devices' companions ! - Store : back up your photos, music and videos and get immediate storage capacity. - Stream : stream your favorite movies and watch them from your phone or tablet without any local Internet connection. - Share : share your photos, music and videos with family and friends or on your favorite social medias. - Manage : easily manage your files with the very intuitive EMTEC Connect free app. Supports iOS platform 6.0 or higher

About

Netzero for Powerwall

Automate your home energy system to maximize savings and monitor your Powerwall's health. Integrate with utility providers for dynamic pricing and receive alerts for solar or battery issues. Gain insights into energy production and use your device as a home energy dashboard.

Highlights
  • Powerwall automation and scheduling
  • Utility tariff integration
  • Solar production monitoring
  • Powerwall health alerts
  • Home energy dashboard
  • Advanced diagnostics
Features
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Increase savings with Powerwall automation and utility integrations. Connect your energy devices, monitor Powerwall health, and detect solar issues early. Advanced features require a subscription after a 30-day free trial. - Take charge of your Powerwall. Schedule charging, discharging, and backup settings. Export stored energy to the grid when export prices are highest, or before a period of cheap or free electricity. Prevent unnecessary discharge during EV charging and improve efficiency. Automate your home energy with device integrations. - Connect your EV charger, EV, and heating/cooling devices. Pre-heat or pre-cool your home when electricity is cheap, or pause EV charging and heating/cooling during outages. Supports 500+ devices across 50+ brands. - Octopus Energy users benefit from automatic Powerwall charging during Intelligent Octopus Go sessions. Supports Agile Octopus, Tibber, Amber Electric, ComEd Hourly Pricing, and Ameren Power Smart Pricing. Netzero configures Powerwall with live pricing to help cut your bills. - Receive automatic alerts for solar or battery issues. Track Powerwall capacity and degradation to stay within warranty limits. - Get daily, monthly, and yearly production estimates. Spot solar performance issues early. Use the app on your tablet or phone as an always-on home energy dashboard. - Download detailed data, view string-level solar performance, access weather data and developer tools, and enjoy ongoing feature updates. Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Emtec Connect4 screens
Netzero for Powerwall4 screens

Verdict

The call

The clearest difference is review sentiment: Netzero for Powerwall at 90% against Emtec Connect's 16%. Netzero for Powerwall also leads on rating (4.8 vs 2.9) and update cadence (weekly vs every 4 months). Emtec Connect's advantage is in-app purchases (none vs 2) and iOS requirement (9.0 vs 16.4). 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. Netzero for Powerwall sells 2 in-app purchases, starting at $6.99 per month. Emtec Connect asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Netzero for Powerwall holds the better App Store score, 4.8 against 2.9. That said, the two scores are not equally well evidenced: Netzero for Powerwall has 812 ratings behind it against 42, so its average is the more settled of the two. Written reviews point the same way: 16% of Emtec Connect's written reviews are positive against 90% of Netzero for Powerwall's.

UpkeepUpdate frequency

Emtec Connect ships an update every 4 months, Netzero for Powerwall weekly. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

Scorecard7 real differences · 3 level
Emtec Connect versus Netzero for Powerwall: the parameters behind the verdict, then further details
ParameterEmtec ConnectNetzero for Powerwall
PriceFreeFree
Rating2.9 (42 ratings)4.8 (812 ratings) — better
Positive reviews16.0% of reviews90.5% of reviews — better
Number of ratings42812 — better
Update frequencyEvery 4 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better16.4
Further details — not scored
Size114 MB61 MB
Age rating4+4+
DeveloperDexxon Data MediaNetzero Labs, Inc

Customer experience

Emtec Connect

All ratings41 ratings
Positive41.5%
Neutral14.6%
Negative43.9%
Written reviews200 reviews
Positive16.0%
Neutral11.0%
Negative73.0%

Netzero for Powerwall

All ratings809 ratings
Positive95.1%
Neutral1.6%
Negative3.3%
Written reviews566 reviews
Positive90.5%
Neutral2.8%
Negative6.7%

Bugs and requests

Emtec Connect

Not enough reviews yet to summarise bugs or requests.

Netzero for Powerwall

Reported bugs

2 issues
  • May not be compatible with PW3
  • Diagnostic screen stays black

Requested features

2 requests
  • stop battery charging?
  • AND function on the conditionality

In-app purchases

None

Emtec Connect

No in-app purchases

2 purchases

Netzero for Powerwall

Subscriptions2
  • Netzero Pro - Monthly$6.991 Month
  • Netzero Pro - Annual$69.991 Year

Questions

Is Emtec Connect free?
Emtec Connect is free to download, with no in-app purchases.
Is Netzero for Powerwall free?
Netzero for Powerwall is free to download, with in-app purchases available.
Which has better reviews, Emtec Connect or Netzero for Powerwall?
Netzero for Powerwall is rated higher. Emtec Connect averages 2.9 out of 5 from 42 ratings, while Netzero for Powerwall averages 4.8 from 812 ratings.
Do Emtec Connect or Netzero for Powerwall have ads?
Neither Emtec Connect nor Netzero for Powerwall shows ads.
Which is updated more often, Emtec Connect or Netzero for Powerwall?
Emtec Connect ships an update every 4 months, and Netzero for Powerwall weekly. Most recently, Emtec Connect was updated on November 1, 2026 and Netzero for Powerwall on November 7, 2026.

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