Comparison

SoH Checker vs SoHWHAT

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

Head to head
About

SoH Checker

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Monitor your electric vehicle's battery health with SoH Checker – the simple app for calculating your EV battery's State of Health (SoH). HOW IT WORKS SoH Checker uses data from your vehicle's onboard computer to calculate your battery's current health status. Take a normal consumption drive and enter the values – the app does the rest. MAIN FEATURES - Precise SoH calculation based on consumption data - Estimated range with current battery capacity - History tracking for multiple measurements - Support for multiple vehicles - Consideration of heating/air conditioning - Customizable consumption units (kWh/100km, Wh/km, kWh/100mi, Wh/mi) - Fully multilingual (German, English) PREMIUM FEATURES - Unlimited vehicles and measurements - History chart with trend line - Edit and delete measurements - PDF export of complete history - Advanced statistics PRIVACY Your data stays on your device. SoH Checker does not collect personal data and sends nothing to external servers. Full control over your data. SIMPLE & ACCURATE No complicated measuring devices needed – just the data from your onboard computer. Perfect for all electric vehicle owners who want to keep an eye on their battery condition. Whether Tesla, VW ID, Polestar, Hyundai IONIQ, or any other electric vehicle – SoH Checker works with all EVs where you have access to SoC (State of Charge), consumption, and distance traveled. FOR WHOM? - Electric vehicle owners who want to monitor their battery - Used car buyers for battery inspection - EV enthusiasts who track their data - Anyone who wants to know: "How healthy is my battery?" WHY SOH MATTERS State of Health shows you how much capacity your battery still has compared to new condition. An SoH of 90% means 90% of the original capacity is available. With regular measurements, you can identify trends and document depreciation. Start now with your first measurement and keep track of your EV battery's health!

About

SoHWHAT

Features
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Dein Tesla zeigt dir nicht die ganze Wahrheit. SOH sagt dir, wie viel Kapazität noch da ist — aber nicht, ob Feuchtigkeit eindringt, Zellen sterben oder ein €22.000-Problem lauert. SoHWAT sieht, was andere übersehen. ▸ KOSTENLOSE LIVE-ANALYSE Verbinde deinen OBDLink MX+ oder VSLinker MS Adapter mit dem Tesla-Adapterkabel deines Tesla und sieh in Echtzeit, was wirklich in der Batterie passiert: • 96 Brick Live-View — Spannung, Kapazität (CAC) und SOC jeder einzelnen Zellgruppe • SOH & Kapazitätsanzeige — State of Health mit Detailwerten • Feuchtigkeitserkennung — Wassereintritt in Gramm gemessen • HV-Isolation & Innenwiderstände — Sicherheitskritische Parameter live • BMS-Status — Battery Management System Echtzeitdaten • Unbegrenzte Fahrzeuge — teste so viele Teslas wie du willst Alles kostenlos. Kein Abo. Keine versteckten Kosten. Keine Einschränkung. ▸ PROFESSIONELLE ZERTIFIKATE (optional) Brauchst du ein offizielles Batterie-Zertifikat für Kauf, Verkauf oder Gutachten? Buche es direkt in der App: • TrueHealth Score (0–100) — unser proprietärer 6-Kategorien-Index • 96-Brick Heatmap — individuelle Zellkapazitäten visualisiert • Weak Short Detection — Zelldefekte erkennen bevor sie sichtbar werden • BMS-Fehlercodes mit Bewertung — alle Fehler erklärt und eingeordnet • Digital verifizierbar — QR-Code zur Echtheitsprüfung Zertifikate ab €99 (Aktionspreis für die ersten 500). ▸ UNTERSTÜTZTE MODELLE • Tesla Model 3 (2017+) • Tesla Model Y (alle Baujahre) • Tesla Model S (2012–2021) • Tesla Model X (2015–2021) ▸ BENÖTIGTE HARDWARE OBDLink MX+ oder VSLinker MS Bluetooth-Adapter + Tesla OBD-Adapterkabel (Model S/X bzw. Model 3/Y). Kein Spezialgerät, kein Leihgerät, kein Rückversand. ▸ WARUM SOHWAT? Entwickelt von Tesla Battery Experts — Deutschlands führender unabhängiger Tesla-Werkstatt mit 500+ analysierten Batterien. Wir reparieren Tesla-Batterien seit 2016, kennen jede Schwachstelle und haben dieses Wissen in eine App gepackt. 47 Parameter. 96 Bricks. Data you can trust. ▸ DATENSCHUTZ CAN-Bus-Daten werden lokal auf deinem iPhone verarbeitet. Für Zertifikate werden sie verschlüsselt übertragen. Personenbezogene Daten nur mit deiner Zustimmung. Fragen? Feedback? → certificate@sohwhat.com Website: sohwhat.com

Screenshots

SoH Checker4 screens
SoHWHAT4 screens

Verdict

The call

The clearest difference is in-app purchases: SoHWHAT at none against SoH Checker's 1. SoH Checker's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement 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. SoH Checker sells 1 one-off in-app purchase. SoHWHAT asks for nothing beyond the download.

UpkeepUpdate frequency

SoH Checker ships an update fortnightly, SoHWHAT every 2 months. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 4 level
SoH Checker versus SoHWHAT: the parameters behind the verdict, then further details
ParameterSoH CheckerSoHWHAT
PriceFreeFree
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size6 MB3 MB
Age rating4+4+
DeveloperWerner KatzenbergerCARSTEN OHLINGER

In-app purchases

1 purchases

SoH Checker

One-time1
  • Premium$1.99
None

SoHWHAT

No in-app purchases

Questions

Is SoH Checker free?
SoH Checker is free to download, with in-app purchases available.
Is SoHWHAT free?
SoHWHAT is free to download, with no in-app purchases.
Do SoH Checker or SoHWHAT have ads?
Neither SoH Checker nor SoHWHAT shows ads.
Which is updated more often, SoH Checker or SoHWHAT?
SoH Checker ships an update fortnightly, and SoHWHAT every 2 months. Most recently, SoH Checker was updated on October 25, 2026 and SoHWHAT on October 7, 2026.

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