T4U for Tesla vs Widgnest
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
T4U for Tesla
Track and monitor your Tesla vehicle in real-time. View battery range, efficiency, and statistics by trip or period. Access a global map of charging points and participate in eco-driving challenges.
- Real-time consumption and range indicators
- Vehicle statistics by trip or period
- Schedule controls panel
- Global charging point map
- Eco-driver challenges
- In-car browser access
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Finally know the real condition of your Tesla's battery. Not the charge percentage. Not a figure inferred from displayed range. State of Health ā how much capacity your pack has left compared to the day it left the factory. T4U is built by MyBatteryHealth, Europe's reference network for electric vehicle battery diagnostics. Over 70,000 batteries certified. MEASURED, NOT ESTIMATED Your car continuously reports the energy actually left in its pack. T4U reads that figure and derives your battery health from it. The vehicle's own computer does the measuring; we only translate. This works with the car parked and locked. You get a fresh reading every day without anything ever disturbing your vehicle. WHAT YOU GET - State of Health as a percentage, with an MBH grade from A to E - Current pack capacity in kWh, against its original capacity - Real-world range, calculated from your own data - Twelve-month degradation curve - Manufacturer warranty tracking: years, mileage, minimum State of Health - Battery chemistry, cell supplier, recommended charge limits - Maximum charging power and Supercharger compatibility - Live charge level, range and lock status - Home screen widget, current even while the car sleeps ADVANCED PACK DIAGNOSTICS Where a consumer app stops at a percentage, T4U goes down to cell level: - Voltage spread between the highest and lowest brick groups ā the indicator that degrades before you lose any range - Thermal spread between modules, and the position of the hottest sensor - Internal pack resistance, measured while driving - Open-circuit voltage, and voltage per cell - Real cycle count, derived from lifetime energy consumed Each of these identifies a weak point by its number inside the pack. That is what lets you document a fault with a professional. YOUR BATTERY CARD Generate your score and share it. A social-ready card carrying your grade, your battery health, your mileage and the MyBatteryHealth certification. THE OFFICIAL MBH REPORT Issue a digitally signed battery health certificate, verifiable by QR code. A document recognised by automotive professionals, leasing companies and used car buyers ā and the strongest argument you have when defending your Tesla's price at resale. WHAT T4U DOES NOT DO T4U has no permission to command your vehicle, and never asks for one. It will not wake it, unlock it or move it. No location data is collected. Distance is reconstructed from the odometer. Every figure on screen states where it came from and when it was measured. A number you cannot explain is worth nothing. T4U PREMIUM The subscription unlocks full cell-level diagnostics, weak point localisation inside the pack, twelve months of history, driving performance and unlimited sharing of your battery card. ā¬1.99 per month or ā¬14.99 per year. Terms of use: https://tesla-4u.com/en/privacy-legal/ Privacy policy: https://tesla-4u.com/en/rgpd/ T4U is an independent app published by VIA SAS. It is not affiliated with, endorsed by or sponsored by Tesla, Inc. Tesla, Model S, Model 3, Model X and Model Y are trademarks of Tesla, Inc.
Widgnest
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Widgnest turns your Home Screen into something that's actually yours. Pick from more than 50 widgets ā clocks, calendars, weather, countdowns, notes, checklists, habit trackers, finance tickers and more ā then style them the way you like. Five themes, custom accent colours, and a library of wallpapers designed to match. Everything runs on your device. No account, no sign-up, no ads, no tracking. WIDGETS FOR EVERY PART OF YOUR DAY Time & Date ⢠Digital and analog clocks ⢠Date and calendar ⢠Year progress and ISO week number ⢠World clock across time zones ⢠Multi-countdown and days until the weekend Weather & Nature ⢠Current conditions, hourly and 7-day forecast ⢠Sunrise, sunset and golden hour ⢠UV index and air quality ⢠What to Wear, based on the hour you're actually in ⢠Weekend Planner ā Saturday and Sunday, and the best dry hours to head out ⢠Moon phase Productivity ⢠Next meeting and the day's agenda from your calendar ⢠Notes and checklists ⢠Pomodoro timer Habits & Health ⢠Habit grid and streak counters ⢠Water intake ⢠Weight tracker with a trend graph ⢠Fasting timer ⢠Mood tracker and days since Personal & Aesthetic ⢠Countdowns and anniversaries ⢠Photo frame ⢠Quote of the day and horoscope Finance ⢠Currency exchange rates and cryptocurrency prices ⢠Budget ring, subscriptions and bills due ⢠Payday countdown and salary per second Smart Utility, Social, Fun and Mindfulness ⢠Wi-Fi QR code, unit converter, bubble level, tip & split ⢠Birthday list from your contacts, together since, long-distance clock ⢠Magic 8-Ball, random picker, joke of the day ⢠Life in weeks, life progress and daily affirmations MAKE IT LOOK RIGHT ⢠Five themes: Glass, Minimal, Material, Dark Luxe and Neon ⢠Custom accent colours ⢠Adjustable panel transparency WALLPAPERS BUILT FOR WIDGETS More than 80 wallpapers, ready to save to Photos. Every one is measured rather than just labelled: filter for OLED wallpapers that hold true blacks, or widget-safe ones that stay calm exactly where your widgets sit, so your text keeps its contrast. Each wallpaper tells you which theme it looks best with. Browse by collection and keep the ones you love in Favourites. PRIVATE BY DESIGN Your notes, lists, counters and settings never leave your iPhone. Widgnest has no user account and collects no analytics. Weather and finance widgets ask public services for data using nothing but coordinates or a currency symbol ā never your identity. WIDGNEST PRO A single one-time purchase unlocks every premium widget, all four premium themes and custom accent colours. No subscription, and every future widget and theme is included. Questions or ideas? Write to info@designer2.org
Screenshots
Verdict
The clearest difference is update cadence: T4U for Tesla at every 4 days against Widgnest's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. T4U for Tesla sells 3 in-app purchases, starting at $3.99 per month and Widgnest sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
T4U for Tesla ships an update every 4 days, Widgnest every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | T4U for Tesla | Widgnest |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 43.5% of reviews | ā |
| Update frequency | Every 4 days ā better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | ā |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.7 | 17.0 ā better |
| Further details ā not scored | ||
| Size | 4 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | VIA - Vehicle Information application | Designer2 jdoo |
In-app purchases
T4U for Tesla
- abonnement mensuel$3.991 Month
- abonnement annuel$39.991 Year
- Rapport MBH T4U$22.99
Widgnest
- Widgnest Pro$0.99









