Comparison

Invoice Center Pro vs SIPSpace

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

Head to head
About

Invoice Center Pro

Easily create and send invoices and estimates for products or services. Get paid faster with on-the-spot billing, customizable templates, and secure payment collection. Manage contracts and track inventory with a built-in barcode scanner.

Highlights
  • Create invoices and estimates
  • Collect payments and taxes
  • Email and print PDF invoices
  • Barcode scanner for billing
  • Manage contracts and templates
  • Offline mode
  • Customizable reports
Features
Read full description

Invoice Center Pro is an invoicing, billing, estimate, and payment app for professionals, freelancers, contractors, and small businesses. Create invoices and estimates for products or services, scan billable items, record payments, apply taxes and discounts, and send professional documents from iPhone, iPad, and Mac. INVOICES & ESTIMATES • Create invoices and estimates for goods or services. • Manage customers, products, services, quantities, prices, taxes, charges, and discounts. • Record payments and track billing activity. • Print, email, or share professional PDF invoices. • Support multiple currencies and CSV import and export. BARCODE SCANNER • Scan products directly into billing and inventory workflows. • Use the built-in camera scanner or compatible Bluetooth barcode scanners. CONTRACTS & TEMPLATES • Create recurring contracts for customers you invoice regularly. • Build reusable templates for common products or services. • Customize payment methods, terms, currencies, taxes, discounts, and units. PRO FEATURES • Sign in with Apple. • Work offline without requiring Wi-Fi or a data connection. • Sync data between your devices with an eligible subscription. CUSTOMIZATION & REPORTS • Add custom attributes for your workflow. • Personalize reports with fonts, colors, headers, footers, and logos. • Create, print, email, and share professional PDF reports. STARKODE PRO Part of the Starkode Pro series for professionals working across iPhone, iPad, and Mac. Need help? Contact support@starkode.com. SUBSCRIPTION Starkode membership is month-to-month with no long-term contracts or cancellation fees. Cancel anytime from your device. Privacy Policy: https://starkode.com/privacy/ Terms of Use: https://starkode.com/terms/

About

SIPSpace

Features
Read full description

OfficeRnD is the new Switzerland Innovation Park Basel Area services portal designed to streamline your daily tasks. With a clean and intuitive interface, it gives you a central place to manage your profile and privacy settings, book meeting rooms, reserve equipment like the Meeting Owl, submit and track support requests, and access useful documents and how-to guides. You’ll also be able to stay informed about community events and available benefits.

Screenshots

Invoice Center Pro4 screens
SIPSpace4 screens

Verdict

The call

The clearest difference is in-app purchases: SIPSpace at none against Invoice Center Pro's 3. Invoice Center Pro's advantage is update cadence (every 3 weeks vs every 4 months) and device support (4 vs 1). On price and ads 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. Invoice Center Pro sells 3 in-app purchases, starting at $12.99 per month. SIPSpace asks for nothing beyond the download.

UpkeepUpdate frequency

Invoice Center Pro ships an update every 3 weeks, SIPSpace every 4 months. The most recent releases landed on September 23, 2026 and September 19, 2026 respectively.

Scorecard4 real differences · 6 level
Invoice Center Pro versus SIPSpace: the parameters behind the verdict, then further details
ParameterInvoice Center ProSIPSpace
PriceFreeFree
Rating4.6 (93 ratings) — better—
Positive reviews55.3% of reviews—
Number of ratings93 — better—
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS15.6 — better17.0
Further details — not scored
Size43 MB30 MB
Age rating4+4+
DeveloperStarkode Limited CompanySwitzerland Innovation Park Basel Area AG

In-app purchases

3 purchases

Invoice Center Pro

Subscriptions3
  • Premium Invoices7 Days trial$12.991 Month
  • Premium Suite3 Days trial$24.991 Month
  • Premium Suite Annual7 Days trial$99.991 Year
None

SIPSpace

No in-app purchases

Questions

Is Invoice Center Pro free?
Invoice Center Pro is free to download, with in-app purchases available.
Is SIPSpace free?
SIPSpace is free to download, with no in-app purchases.
Do Invoice Center Pro or SIPSpace have ads?
Neither Invoice Center Pro nor SIPSpace shows ads.
Which is updated more often, Invoice Center Pro or SIPSpace?
Invoice Center Pro ships an update every 3 weeks, and SIPSpace every 4 months. Most recently, Invoice Center Pro was updated on September 23, 2026 and SIPSpace on September 19, 2026.

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