Comparison

KOSTAL InverterApp vs TheFlex

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

Head to head
About

KOSTAL InverterApp

Access and manage KOSTAL drive controllers with Bluetooth via your smartphone or tablet. Perform diagnostics, commissioning, and parameter settings remotely. Data records are compatible with PC software for seamless workflow.

Highlights
  • Bluetooth connectivity
  • Wizard-guided commissioning
  • Save and copy device settings
  • Send data records via email
  • Parameter settings in plain text
  • Control drive controller
  • Access process variables
  • Error analysis and history
Features
Read full description

The KOSTAL INVERTER app can be used to very simply access all KOSTAL drive controllers in the INVEOR family with Bluetooth via your smartphone or tablet. Convenient and rapid diagnosis and commissioning is therefore possible at any time and from anywhere. The following functions are available: • Wizard-guided commissioning • Save and copy device settings to other drive controllers • Send data records by e-mail • Stored support e-mail address • Parameter settings in plain text • Control mode, control the drive controller via your mobile end device • Access to all process variables • Device information • Error analysis, error history • Demo mode • Data records compatible with KOSTAL INVERTERpc software The app’s demo mode also allows it to be fully tested even without a drive controller. The data records are fully compatible with the familiar INVERTERpc PC software allowing data records to be produced with ease on the PC and loaded onto drive controllers using the app. Vice versa, the app can be used to read data records in the field, send them by e-mail and analyse them on the PC. If you have any questions, suggestions or comments, don’t hesitate to e-mail us at Drives@KOSTAL.com KOSTAL Industrie Elektrik GmbH

About

TheFlex

Features
Read full description

TheFlex der innovative mobile Browser für Ihre SAP Logistik! TheFlex ist der Industriebrowser, der speziell für Anwendungsszenarien in der Logistik, im Außendienst und in der Produktion geeignet ist. Ideal für die Nutzung von Handhelds und Tablets in Kombination mit Webapplikationen von SAP wie SAP Fiori, SAP EWM RFUI Apps und ITSmobile ausgelegt. Zahlreiche Funktionen stehen Ihnen zur Optimierung Ihrer (intra-)logistischen Prozesse entlang der kompletten Supply Chain mit TheFlex zur Verfügung: • Standardisierte Schnittstellen zu Gerätefunktionen: TheFlex unterstützt Drucker, Kamera, Mikrofon und Barcode Scanning. Eine automatische Tastatur- und Cursorsteuerung sowie die Funktionen Vibration und Vorlesen zählen ebenso zum Spektrum. • Festhinterlegte URLS: Hinterlegen Sie feste URLs einmalig bei der Installation der App. Beim Start der App werden die relevanten URLs automatisch geladen. • Adminpasswort: Schützen Sie die Einstellungen des Browsers vor unautorisierten Zugriffen. • Dateien direkt anzeigen: Öffnen Sie ihre Dateien wie PDF, PNG, JPEG usw. direkt in der App. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

KOSTAL InverterApp4 screens
TheFlex4 screens

Verdict

The call

The clearest difference is in-app purchases: KOSTAL InverterApp at none against TheFlex's 2. KOSTAL InverterApp also leads on update cadence (every 2 months vs every 6 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. TheFlex sells 2 in-app purchases, starting at $6.99 per month. KOSTAL InverterApp asks for nothing beyond the download.

UpkeepUpdate frequency

KOSTAL InverterApp ships an update every 2 months, TheFlex every 6 months. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 6 level
KOSTAL InverterApp versus TheFlex: the parameters behind the verdict, then further details
ParameterKOSTAL InverterAppTheFlex
PriceFreeFree
Positive reviews50.0% of reviews—
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size78 MB14 MB
Age rating4+17+
DeveloperKOSTAL Industrie Elektrik GmbHFlexus AG

In-app purchases

None

KOSTAL InverterApp

No in-app purchases

2 purchases

TheFlex

Subscriptions2
  • License / Month$6.991 Month
  • License / Year$68.991 Year

Questions

Is KOSTAL InverterApp free?
KOSTAL InverterApp is free to download, with no in-app purchases.
Is TheFlex free?
TheFlex is free to download, with in-app purchases available.
Do KOSTAL InverterApp or TheFlex have ads?
Neither KOSTAL InverterApp nor TheFlex shows ads.
Which is updated more often, KOSTAL InverterApp or TheFlex?
KOSTAL InverterApp ships an update every 2 months, and TheFlex every 6 months. Most recently, KOSTAL InverterApp was updated on November 2, 2026 and TheFlex on October 27, 2026.

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