Comparison

SundialEV vs Tesphase

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

Head to head
About

SundialEV

This app intelligently directs surplus solar energy to charge your electric vehicle instead of sending it back to the grid. It helps users save money by avoiding high electricity buy-back rates and utilizing cheaper off-peak charging times. The system is designed for a set-and-forget experience, integrating with existing EV and solar hardware.

Highlights
  • Charges EV with surplus solar
  • Avoids grid export for low rates
  • Set charging floor and battery reserve
  • Works with all Tesla models
  • Coordinates with Powerwall
  • Utilizes off-peak charging
Features
Read full description

Your rooftop solar is worth far more in your car than sold back to the grid. SundialEV automatically charges your EV from surplus solar instead of exporting it for pennies — set it once and forget it. Under "Net billing" electric plans (like NEM 3.0), utilities pay you a few cents for the solar you export, then charge you full price for the same energy at night. Sundial closes that gap: when your panels make more than your home needs, it sends the surplus to your car instead of the grid, saving most users on their electricity bills. • Set-and-forget — pick a charging floor and a battery reserve once; Sundial does the rest • Works with every Tesla model — and with any EV brand via an OCPP smart wall charger, like the Wallbox Pulsar Plus • Reads your production from Tesla, SolarEdge, Enphase solar systems (+ more now) • Coordinates with your Powerwall — you choose how full it gets before the car charges • Tops up on cheap off-peak power on your schedule, and avoids peak-rate windows when solar isn't available • Need range right now? One tap starts a full-speed charge — solar takes back over when it's done • No new hardware — works with the solar, battery, car, and charger you already own

About

Tesphase

Features
Read full description

Tesphase is your home solar command center, see your whole system at a glance, and let it automatically charge your EV with the sunshine you're not using. Most solar owners have no idea how much power they send back to the grid for pennies. Tesphase shows you, live production, home consumption, and the excess available right now then puts that excess to work: it charges your Tesla with free solar instead of expensive grid power, adjusting in real time as the sun moves. Depending on your rates and usage, that can mean $50–$300 a month back in your pocket. ONE DASHBOARD FOR YOUR SOLAR • Live solar production and home consumption • Real-time excess solar available • Daily and monthly energy and dollar savings • Time-of-use rate awareness so you avoid peak-price charging AUTOMATIC SOLAR EV CHARGING • Starts, adjusts, and stops your Tesla's charging to match your excess solar • Pauses during peak utility hours • Full manual override any time WORKS WITH YOUR SYSTEM • Solar: Enphase, SolarEdge, Tesla Energy (Solar / Powerwall), Generac PWRcell, and Sunrun (via your underlying inverter) • EV: Tesla Model 3, Y, S, and X (any year supporting the Tesla Fleet API) HOW SETUP WORKS 1. Create a free account 2. Connect your solar (Enphase, SolarEdge, and more) 3. Connect your Tesla 4. Plug in during daylight Tesphase takes it from there PRIVACY Tesphase never sells your data. OAuth tokens are encrypted at rest with AES-256-GCM and never shared. Full policy: https://app.tesphase.co/privacy. Delete your account and all data any time from Settings → Account. NOT AFFILIATED with Tesla, Inc. or Enphase Energy. Tesphase uses the official Tesla Fleet API and Enphase Developer API to read your data and (with your authorization) send charging commands. Questions: info@tesphase.co

Screenshots

SundialEV4 screens
Tesphase4 screens

Verdict

The call

The clearest difference is device support: Tesphase at 3 against SundialEV's 1. Tesphase also leads on iOS requirement (13.0 vs 16.4). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 8 level
SundialEV versus Tesphase: the parameters behind the verdict, then further details
ParameterSundialEVTesphase
PriceFreeFree
Rating5.0 (11 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings11 — better—
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.413.0 — better
Further details — not scored
Size42 MB4 MB
Age rating4+4+
DeveloperAppAheadAKSHAT SHARMA

In-app purchases

None

SundialEV

No in-app purchases

None

Tesphase

No in-app purchases

Questions

Is SundialEV free?
SundialEV is free to download, with no in-app purchases.
Is Tesphase free?
Tesphase is free to download, with no in-app purchases.
Do SundialEV or Tesphase have ads?
Neither SundialEV nor Tesphase shows ads.

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