POS System Comparison 2026【Complete Guide】| Seisei

Published: January 9, 2026

Comprehensive comparison of POS systems in 2026. Compare cloud POS, tablet POS, and point-of-sale systems by features, pricing, and characteristics. Learn how to choose the best POS system for restaurants, retail stores, and service businesses.

POS(Depends on plan) System Comparison 2026【Complete Guide】

TL;DR

  • Core Problem: Don't know which POS(Depends on plan) system to choose
  • Quick Answer: In 2026, "Cloud POS(Depends on plan) + Accounting Integration" is the mainstream. For small businesses, integrated POS(Depends on plan)-accounting systems like Seisei are recommended. If POS(Depends on plan) and accounting are integrated, no additional integration fees are required, saving 60 hours of work per month.
  • Target Audience: Small business owners (restaurants, retail stores, service businesses), store managers
  • Expected Benefits: Choose the right POS(Depends on plan) system to reduce work hours by 60 hours per month and cut costs by 50%
  • Reading Time: 15 minutes

Key Terms

POS(Depends on plan) System

Definition: An integrated system for managing sales, inventory, and customers at stores. Centered on point-of-sale functions, including accounting and analytics.

Scope: Point-of-sale functions, sales management, inventory management, customer management, accounting integration, sales analytics. Also available on tablets and smartphones.

Related: Point-of-sale system, ECR, sales management system

Cloud POS(Depends on plan)

Definition: A POS(Depends on plan) system accessed via the internet. Data is stored in the cloud and can be accessed from anywhere.

Scope: Monthly subscription, automatic updates, multi-store management, real-time aggregation. Low initial cost.

Related: SaaS POS(Depends on plan), online POS(Depends on plan)

POS(Depends on plan)-Accounting Integration

Definition: A system where POS(Depends on plan) and accounting software are integrated from the start. Sales data is automatically converted to accounting data.

Scope: Automatic journal entries from sales data, automatic tax classification, automated daily/monthly closing. No additional integration required.

Related: Integrated business management system, all-in-one POS(Depends on plan)


POS(Depends on plan) System Market Trends 2026

Trend 1: Cloud POS(Depends on plan) Becomes Fully Mainstream

Data: A 2025 survey shows that over 90% of new implementations choose cloud POS(Depends on plan) (Source: Japan POS(Depends on plan) System Market Survey 2025).

Reasons:

  • Low initial cost (from $0)
  • Always up-to-date with automatic updates
  • Remote access available
  • Data protection during disasters

Trend 2: POS(Depends on plan) + Accounting Integration Increases

Data: Systems integrating POS(Depends on plan) and accounting increased by 50% compared to 2025 (Source: Small Business DX Promotion Survey 2026).

Reasons:

  • Reduced data entry workload (60 hours saved per month)
  • Reduced integration costs ($50-100 per month)
  • Real-time financial status visibility

Trend 3: Tablet POS(Depends on plan) Adoption

Data: Tablet POS(Depends on plan) system adoption rate exceeds 60% (Source: Restaurant IT Survey 2026).

Features:

  • Integrated management from order taking to payment
  • Table service support
  • Mobile ordering integration

Major POS(Depends on plan) Systems Comparison Table

Feature Seisei Square Tablet POS(Depends on plan) Air POS(Depends on plan) Smart POS(Depends on plan)
Initial Cost $0 $0 $0 $0 $0
Monthly Fee $98+ $120+ $150+ $80+ $100+
POS(Depends on plan) Features ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Accounting Features Integrated ❌ No ❌ No ❌ No ❌ No
Accounting Integration Not Required ⚠️ Required separately ⚠️ Required separately ⚠️ Required separately ⚠️ Required separately
Integration Fee $0 Additional fee required Additional fee required Additional fee required Additional fee required
Inventory Management ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Customer Management ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Mobile Ordering ✅ Yes ✅ Yes ✅ Yes ❌ No ✅ Yes
Multi-Store Support ✅ Yes ✅ Yes ✅ Yes ⚠️ Limited ✅ Yes
Implementation Time 1-2 weeks Same day Same day Same day Same day
Learning Curve Low Low Low Low Low
Support Chat + Tickets Chat Chat Chat Chat

Data Source: Official websites of each company (as of January 2026)


POS(Depends on plan) System Selection by Industry

POS(Depends on plan) Systems for Restaurants

Required Features

  1. Table Management

    • Seat status management
    • Order status confirmation
    • Split payment support
  2. Mobile Ordering Integration

    • QR code ordering
    • Tablet ordering
    • Delivery order management
  3. Inventory Management

    • Ingredient inventory management
    • Ordering management
    • Waste management

Recommended Systems

Seisei: POS(Depends on plan)-accounting integration automates everything from sales to accounting. Also includes restaurant-specific features (table management, mobile ordering).

Square: Known for ease of use. Suitable for small restaurants.

Tablet POS(Depends on plan): Feature-rich but slightly more expensive.


POS(Depends on plan) Systems for Retail Stores

Required Features

  1. Product Management

    • Product registration and editing
    • Barcode management
    • Price management
  2. Inventory Management

    • Real-time inventory management
    • Ordering management
    • Inventory analytics
  3. Customer Management

    • Member management
    • Point management
    • Promotion management

Recommended Systems

Seisei: POS(Depends on plan)-accounting integration automates everything from sales to accounting. Strong inventory management.

Smart POS(Depends on plan): Suitable for small retail stores. Known for ease of use.

Air POS(Depends on plan): Affordable. Limited features.


POS(Depends on plan) Systems for Service Businesses

Required Features

  1. Appointment Management

    • Appointment registration and editing
    • Appointment status confirmation
    • Reminder functionality
  2. Customer Management

    • Customer information management
    • Visit history management
    • Service history management
  3. Sales Management

    • Sales by service type
    • Sales by staff member
    • Sales analytics

Recommended Systems

Seisei: Integrated appointment management, customer management, POS(Depends on plan), and accounting. Ideal for service businesses.


POS(Depends on plan)-Accounting Integration vs Traditional Integration

Problems with Traditional Integration

  1. Integration Costs

    • Separate contracts for POS(Depends on plan) and accounting
    • Integration API fees ($50-100 per month)
    • Initial setup costs
  2. Data Entry Burden

    • Manual entry of POS(Depends on plan) data into accounting
    • Requires 60 hours of work per month
    • Risk of input errors
  3. Lack of Real-Time Updates

    • Batch integration at month-end
    • Cannot monitor financial status in real-time
    • Delayed business decisions

Benefits of POS(Depends on plan)-Accounting Integration

  1. Cost Reduction

    • No integration fees (save $50-100 per month)
    • Only one system needed
  2. Work Time Reduction

    • Automated data entry (save 60 hours per month)
    • Zero input errors
    • Reduced burden on accounting staff
  3. Real-Time Visibility

    • Sales immediately reflected in accounting data
    • Real-time financial status visibility
    • Quick business decisions pos(Depends on plan)sible

Frequently Asked Questions (FAQ)

Q1: How much does a POS(Depends on plan) system cost?

A: POS(Depends on plan) system pricing consists of initial costs and monthly fees.

  • Initial Cost: $0+ (for cloud POS(Depends on plan))
  • Monthly Fee: Approximately $80-200
  • Accounting Integration Fee: Additional $50-100/month (not required for integrated systems)

For Seisei:

  • Initial Cost: $0
  • Monthly Fee: $98+ (POS(Depends on plan) + Accounting Integration)
  • Integration Fee: Not required

For details, please check the Pricing page.


Q2: What's the difference between a POS(Depends on plan) system and accounting software?

A: POS(Depends on plan) systems primarily handle sales management, inventory management, and customer management. Accounting software primarily handles financial management, journal entries, and financial statement creation.

Traditionally, POS(Depends on plan) and accounting required separate contracts and integration. However, integrated systems like Seisei have POS(Depends on plan) and accounting integrated from the start, eliminating the need for separate integration.


Q3: What are the benefits of a POS(Depends on plan)-accounting integrated system?

A: The main benefits of a POS(Depends on plan)-accounting integrated system are:

  1. Cost Reduction: No integration fees (save $50-100 per month)
  2. Work Time Reduction: Automated data entry (save 60 hours per month)
  3. Real-Time Visibility: Sales immediately reflected in accounting data
  4. Zero Input Errors: Automatic integration prevents human errors

For details, please check [Benefits of POS(Depends on plan)-Accounting Integration](/en/blog/pos(Depends on plan)-accounting-integration-benefits).


Q4: What's the best POS(Depends on plan) system for restaurants?

A: Restaurants require the following features:

  • Table Management: Seat status management
  • Mobile Ordering Integration: QR code ordering, tablet ordering
  • Inventory Management: Ingredient inventory management

Seisei includes these features and automates business management through POS(Depends on plan)-accounting integration.

For details, please check Restaurant POS(Depends on plan) Systems.


Q5: Do small stores need a POS(Depends on plan) system?

A: Yes, we recommend implementing a POS(Depends on plan) system even for small stores.

Benefits:

  • Accurate sales management
  • Proper inventory management
  • Customer information accumulation
  • Business status visualization

Cost: Cloud POS(Depends on plan) available from $80/month.

For details, please check POS(Depends on plan) Systems for Small Stores.


Q6: How long does POS(Depends on plan) system implementation take?

A: POS system implementation time varies by system:

  • Cloud POS(Depends on plan) (Square, Smart POS(Depends on plan), etc.): Same day to 1 week
  • Seisei: 1-2 weeks (including initial setup and training)

Implementation time varies by store size, number of employees, and required features. Please contact us for details.


Q7: Do POS(Depends on plan) systems offer free trials?

A: Many POS(Depends on plan) systems offer free trials.

Seisei: Offers a 30-day free trial. All features available free during the trial period.

For details, please check the Free Trial Application page.


Q8: Can I manage multiple stores?

A: Yes, many POS(Depends on plan) systems offer multi-store management features.

Seisei: Can aggregate and analyze sales from multiple stores in real-time. Manage all store statuses collectively for business decisions.

For details, please check Multi-Store Management Features.


Related Articles


Summary

In 2026, POS(Depends on plan) system selection is moving toward "Cloud POS(Depends on plan) + Accounting Integration." Choosing the right POS(Depends on plan) system can:

  • ✅ Reduce work time by 60 hours per month
  • ✅ Reduce costs by $50-100 per month
  • ✅ Provide real-time financial status visibility
  • ✅ Enable quick business decisions

Seisei is the only system with integrated POS(Depends on plan) and accounting. No additional integration required, significantly reducing costs and work time.


Next Steps

To choose the right POS(Depends on plan) system, try a free trial first.


Written: January 9, 2026
Last Updated: January 9, 2026
Author: Seisei Team


Notes / Disclaimer

As of: 2026-01-13

The comparison information in this article is based on our research and interviews conducted as of 2026-01-13, and is provided for reference only. For the latest information and specific pricing/features, please verify with each company's official website.

Comparison Prerequisites:

  • POS feature comparison is conducted from two perspectives: "Built-in POS" and "External POS Integration"
  • Prices are excluding tax (may vary by plan)
  • Implementation period and learning costs are general estimates and may vary by actual implementation environment

Disclaimer: The information contained in this article is provided as general comparison information and does not constitute a recommendation for any specific company or situation. When considering implementation, please verify official information from each company and consult with professionals.


Get StartedGet Quote