Omni Cash Register Series: A Complete POS Solution for the Modern Business
A new, innovative all-in-one electronic invoicing solution for your business. Invoice your products and services directly from a single device—without an ERP system, without a fiscal device, and without end-of-day Z reports—while staying seamlessly connected to your accountant through Primer Software*.
*Primer Software is a Certified Electronic Invoicing Provider authorized by AADE (the Independent Authority for Public Revenue of Greece).


Omni Cash Register


The Ultimate Compact POS
Speed, portability, and flexibility
A reliable solution, ideal for accepting payments and printing receipts, featuring a top-quality touchscreen display and advanced technical specifications that fully meet your needs for speed, portability, and flexibility.
- High-speed Quad-Core 2.0GHz processor
- High-performance 3GB RAM memory
- Built-in barcode scanner
- Integrated thermal printer
- Front and rear high-resolution cameras
- 5.5" high-resolution display
- Long-lasting battery life
- NFC Reader
- Bluetooth, Wi-Fi & 4G connectivity
Choose your subscription plan
Omni Start
Everything you need to get started
- Issuing retail transaction receipts.
- Issuing receipts with weak or no Internet connection.
- Configuration option for up to 3 different items.
- Automatic sending of document files to your accountant via email.
- Customer storage for faster receipt issuance.
- Issuing credit and cancellation receipts.
- 4G SIM Card
0€ 0€ / Month
Unlimited MyData – Fair usage policy applies
10,000 documents/month – 120,000 documents/year
Includes MyData service activation and 2 hours of support, with a cost of €50 per year
Includes initial device configuration services with a cost of 175€
Annual Subscription
Prices do not include VAT.
Omni Business
Complete digital cash register!
- Everything included in the Omni Start package.
- Issuing receipts for products as well as services.
- Configuration option for up to 20 different items.
- Barcode scanner support using a barcode device or the device camera.
- Issuing accommodation tax receipts for hotels.
- Option to issue zero VAT receipts with exemption justification.
- Issuing invoices.
VAT Number Validation Check
×Please enter your business VAT Number to view the prices.
Omni Plus Cash Register


Complete Cash Register System
Full cash register with customer display
An all-in-one POS device with an integrated printer, scanner, and NFC reader, powered by Android 13 with a hexa-core processor. It delivers maximum performance and ultra-fast application startup.
- High-speed Qualcomm hexa-core 2.4/1.9GHz processor
- High-performance 4GB RAM memory
- Built-in barcode scanner
- Integrated thermal printer
- Front and rear high-resolution cameras
- 10.1" high-resolution display
- Long-lasting battery life
- NFC Reader
- Bluetooth, Wi-Fi & 4G connectivity
Choose your subscription plan
Omni Plus Start
Everything you need to get started
- Issuing retail transaction receipts.
- Issuing receipts with weak or no Internet connection.
- Configuration option for up to 3 different items.
- Automatic sending of document files to your accountant via email.
- Customer storage for faster receipt issuance.
- Issuing credit and cancellation receipts.
- 4G SIM Card
0€ 0€ / Month
Unlimited MyData – Fair usage policy applies
10,000 documents/month – 120,000 documents/year
Includes MyData service activation and 2 hours of support, with a cost of €50 per year
Includes initial device configuration services with a cost of 380€
Annual Subscription
Prices do not include VAT.
Omni Plus Business
Complete digital cash register!
- Everything included in the Omni Plus Start package.
- Issuing receipts for products as well as services.
- Configuration option for up to 20 different items.
- Barcode scanner support using a barcode device or the device camera.
- Issuing accommodation tax receipts for hotels.
- Option to issue zero VAT receipts with exemption justification.
- Issuing invoices.
VAT Number Validation Check
×Please enter your business VAT Number to view the prices.
The Omni cash register series combines:
e-Invoicing Application e-Cash Register
A modern and automated solution for issuing and transmitting documents from any device through MyData via a certified provider.
Electronic Invoicing Provider Services by Primer Software
Secure invoicing for all businesses through Primer Software, a licensed provider with upgraded certification in accordance with the requirements of POL A.1158/2023.
Payment Acceptance from Any Card
A next-generation Soft POS solution for accepting payments via credit, debit, or prepaid cards.
Innovation for the Best Customer Experience
The advantages of our cash registers for your business

Easy Integration
Our All-In-One solution provides instant and automatic integration with all payment institutions, along with an NFC reader for payments from all major international cards, including Mastercard, Visa, UPI, Amex, and Diners, as well as alternative payment methods through digital wallets such as Apple Pay, Google Pay, and more.

Offline Operation
The e-Cash Register application can operate offline for up to 48 consecutive hours. You can continue issuing receipts normally, which are automatically transmitted as soon as the internet connection is restored—without any action required from you.

Certified MyData Provider
Primer Software takes full responsibility for the automatic transmission of your documents to myDATA, with no action required on your part. This helps you avoid errors and delays, ensuring your business remains fully compliant with its obligations to AADE.

Automatic Software Updates
The system supports automatic software updates, enabling new features and improvements immediately, without the need for technical intervention.

Automatic Sending to Your Accountant
All retail receipts are automatically transmitted to your accountant and to myDATA, eliminating the need to send Z reports. This reduces workload, minimizes errors, and ensures full compliance with tax regulations.

Barcode Scanning Support
The terminal features an integrated barcode scanner, enabling instant product identification during sales or order preparation. With a simple scan, the system identifies the item, retrieves its price and details, and automatically adds it to the receipt.
Do You Have a Digital Upgrade Voucher?
You can now apply for the Phase II voucher of Program III and get an Omni or Omni Plus cash register, including one year of e-Cash Register free of charge!
This initiative is implemented as part of the National Recovery and Resilience Plan “Greece 2.0”, funded by the European Union – NextGenerationEU.
Frequently Asked Questions – Purchase/Installation
What do the Omni series packages include?
The Omni and Omni Plus packages include:
- SUNMI V2s or V3 Mix terminal: Android 11 or 13, integrated thermal printer (58/80 mm), 2D scanner, NFC & Soft POS capabilities, Bluetooth, WiFi connectivity, and 4G support.
- Primer e-Cash Register application: Full MyData via certified provider version, offline operation for up to 48 hours, receipt and invoice issuance, and accountant integration.
- Electronic invoicing services from Primer Software: A licensed and certified electronic invoicing service provider by AADE, compliant with POL A.1158/2023 requirements.
Are support and/or software updates provided?
Yes. The system supports automatic software updates, enabling new features and improvements instantly without the need for technical intervention.
Additionally, Primer Software includes 2 hours of activation and support services per year with every bundle purchase.
How can I redeem my voucher?
The voucher can be redeemed within the application in the following two ways:
1. For a new purchase:
Enter your voucher code in the designated field during the final checkout step, before entering your card details.
2. For a renewal (if you already have an active subscription):
Within the application, tap the three lines in the top-left corner of the screen, then go to “General Settings” and select “Renew Subscription.” Choose the “Voucher” option, enter your code, and follow the instructions.
Which voucher do I redeem to purchase the terminal with the e-Cash Register?
The voucher required for the e-Cash Register is: Program 3, Category 3: Acquisition of electronic invoicing provider services.
For more information about the program click here
What do I need to purchase the e-Cash Register?
The purchase is completed directly through the application. To complete the purchase, you need to:
- Select the e-Cash Register package (after clicking the “BUY” button).
- Ensure that your bank card (credit/debit) has sufficient available balance.
- Confirm with your issuing bank that your credit/debit card supports confirmation via SMS or push notification for online purchases.
If you have previously completed an online purchase with your card, you can skip this step.
Frequently Asked Questions - General
How does the e-Cash Register replace the traditional cash register?
The Primer e-Cash Register application works like a complete traditional cash register: it issues receipts, credit notes, and invoices, and transmits them electronically to MyData via a certified provider—without the need for a fiscal device or Z report issuance.
How can I accept payments with the e-Cash Register?
The e-Cash Register supports all payment methods:
- IRIS
- Mixed payment method
- Pre-authorization
- Cash
- Card
- Bank account payment
- On credit
- Prepayment
Can I accept card payments?
Absolutely! The terminal includes an NFC reader for Soft POS and accepts contactless card payments through compatible applications.
It can also connect with a traditional bank POS terminal (e.g., Viva, Piraeus Bank).
Can I issue invoices with the e-Cash Register?
Yes. The e-Cash Register can issue invoices.
Alternatively, you can use Primer ERP to issue all types of invoices, with or without taxes, fees, and stamp duties.
Additionally, Primer ERP supports:
- Automatic and instant (online) updates of receipts from the e-Cash Register.
- Detailed reports for sales, payments, purchases, and more.
- MyData reports with analysis of issued documents and comparison with documents available in MyData.
- Support for digital work card requirements.
- And much more.
For more information, click here.
Can I issue receipts and invoices with the e-Cash Register without an internet connection?
Yes. The e-Cash Register application can operate without an internet connection for up to 48 consecutive hours.
You can continue issuing receipts normally, and they are automatically transmitted as soon as the internet connection is restored—without any action required from you.
The same applies to areas with low-speed or intermittent internet connections. The application continues operating smoothly and sends receipts in the background without requiring any user intervention.
Is the e-Cash Register a cloud application?
No. The application is automatically installed directly on the terminal.
This provides the reliability and speed of a standalone device, without depending on a high-speed internet connection.
You also do not need to worry about service availability, as the application is already installed on your terminal.
What is the difference between MyData and MyData via a Provider?
MyData is the minimum legal requirement for all Greek businesses since 01/01/2021. It involves the asynchronous transmission of all documents to AADE and does not replace a fiscal device or cash register.
MyData via a Provider enables the modern, real-time (online and immediate) transmission of sales documents to AADE. Its use replaces the fiscal device and any additional equipment other than a computer or smartphone.
Do I need to maintain a cash register logbook?
Since the e-Cash Register operates through MyData via a certified provider, you are not required to maintain a cash register logbook.
You only need to complete the following steps:
- Visit the AADE website at aade.gr and declare Primer as your electronic invoicing provider.
- Accept and sign the provider agreement through gov.gr.
Detailed instructions for both steps are sent by email immediately after your purchase.
Is there a limit to the number of receipts I can issue?
There is no limit on receipt issuance.
A fair usage policy applies, allowing up to 10,000 receipts per month (120,000 receipts per year).
If you require more receipts than the fair usage policy allows, please contact us.
Does it support printing on thermal printers?
Yes. The application supports ESC thermal printers (A4/A5) and thermal POS printers (58/80 mm) integrated into the V3 Mix or V2s cash register terminals.
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