Best Sx3App alternatives: apps like Sx3App

10+ similar apps compared and reviewed

3.0 avg rating

10 free apps

Updated October 2026

Sx3App

Emtron s.r.o

🔧 Utilities

📊 Productivity

Whether you want more options like Sx3App or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

KobCard by KOB MARKETING

Gift Card Information Platform

📊 Productivity

4.0(62 ratings)

Free

KobCard is a comprehensive gift card information platform that offers real-time exchange rates, price calculations, and the latest news on gift cards. It serves as a one-stop destination for individuals looking to buy, sell, or stay informed about the world of gift cards.

Top Alternatives to Sx3App

EKO5 by EKO5 software s.r.o.

Editor's Choice

📊 Productivity

0.0(0 ratings)

Free

Hárek by Karel Endrst

Strong Contender

📊 Productivity

0.0(0 ratings)

Free

DoNext for GTD (Legacy) by Fabian Merkle

Getting Things Done ToDo List

Worth Considering

📊 Productivity

4.4(18 ratings)

Free

This app helps you capture ideas and break them down into actionable next steps. It focuses on getting things done without constant planning or rethinking tasks, allowing you to manage commitments and projects efficiently.

More apps like Sx3App

Warehouse Logistics

by PackageX Inc. (U.S.)

Live PV solar power forecasts

Free

Predict your solar power generation for up to 360 hours and 15 days ahead. This tool helps you save energy and money by planning appliance usage, EV charging, and understanding your system's output. It also provides detailed weather forecasts and data export options.

360-hour solar production forecast15-day daily solar production forecast12-month monthly generation forecasts

📊 Productivity

(43)

free with in-app purchases

Compare with Sx3App

My Solar Panel

Check if PVs are right for you

Free

Design and analyze solar photovoltaic systems on your smartphone. Get electricity generation estimates, payback periods, and detailed financial analyses for rooftop or commercial installations. Optimize your system for maximum output and make informed investment decisions.

Design solar projects on mobileEstimate electricity generationCalculate payback period

📊 Productivity

(108)

free with in-app purchases

This premium tool facilitates electronic signatures, time stamps, and data mailbox management. It supports authorization of various document types and mobile photos with GPS data, utilizing qualified digital signatures and remote certificate storage.

Electronic signature authorizationTime stampingData mailbox management

Ovládejte Vaše zařízení od REX

Free

Manage all your REX devices from a single mobile application. Control security systems, track vehicles and pets, and view event history. Sign in with your REX account to access all features.

Arm and disarm controlsMap viewLogbook and event history

Manage your fuel cards and payments with this app. It offers a list of gas stations, in-app payment for fuel and car washes, and detailed transaction history. Access your client zone for card management and other services.

Gas station locator with filtersIn-app fuel and car wash paymentsLoyalty card integration