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Head-to-head · Billing and Provisioning Software

Sonar vs Splynx

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Sonar #3 in Billing and Provisioning Software 8.5/10 Paid ✓ 1 of 5 features Visit Sonar
Splynx #8 in Billing and Provisioning Software 7.9/10 15-day trial Free trial✓ 1 of 5 features Visit Splynx

Sonar leads on 0 checks, Splynx on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSonar · 8.5/10
  • Free trialonly Splynx

Sonar scores higher on our rubric for billing and provisioning software: 8.5 against 7.9 out of 10; our editors rank them #3 and #8.

Sonar is the better fit for ISPs needing billing and network operations together. Splynx is the better fit for small and midsize ISPs needing billing plus operations.

  • Sonar fits best

    ISPs needing billing and network operations together

  • Splynx fits best

    Small and midsize ISPs needing billing plus operations

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Sonar 8.5/10 Visit ↗ Splynx 7.9/10 Visit ↗
At a glance
Editor score 8.5 7.9
Ranking #3 in Billing and Provisioning Software #8 in Billing and Provisioning Software
Best for ISPs needing billing and network operations together Small and midsize ISPs needing billing plus operations
Pricing model Paid Paid
Starting price $500/mo —
Free plan — —
Free trial — 15 days
Deployment Cloud Cloud, Self-hosted
Platforms Web Web
Support Email, Phone, Docs Email, Tickets
Integrations 13 integrations 15 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market
Features Sonar 1/5 · Splynx 1/5
Service provisioning Not checked yet Not checked yet
Usage rating ✓ ✓
Customer portal Not checked yet Not checked yet
API access Not checked yet Not checked yet
Tax calculation Not checked yet Not checked yet
Specs
Deployment model Not checked yet Not checked yet
Service focus Not checked yet Not checked yet
Our review
Pros
  • Combines recurring billing, invoicing, payments, provisioning, and monitoring
  • Supports delinquency workflows, including suspension, dunning, and vacation mode
  • Offers integrations with ISP platforms plus a GraphQL API
  • Supports recurring, prepaid and usage-based billing, including voice rating.
  • Automates invoices, collects payments and offers customer self-service.
  • Connects with accounting, payment, messaging and network systems.
Cons
  • The listed subscriber tiers are billed annually
  • Premium features and integrations may affect the final quote
  • Support is not available 24/7
  • Core subscription cost varies with active subscriber count.
  • TR-069 provisioning is sold as separate, device-count-based ACS plans.
  • Support is limited to email and tickets, without 24/7 coverage.
Our verdict

Sonar is a cloud-based OSS/BSS platform for internet service providers, including fiber, wireless, cable, MDU, and VoIP operators. It combines billing and customer-account tools with network provisioning, monitoring, inventory, ticketing,…

Read the review →

Splynx brings billing and operational tools together for internet and voice providers, particularly small and midsize ISPs managing customer accounts, tariffs and network access. Its scope includes recurring and prepaid billing, usage…

Read the review →
  1. SonarBilling and Provisioning Software 8.5Paid
  2. SplynxBilling and Provisioning Software 7.915-day trial

Strengths and trade-offs

  • Sonar — where it wins

    • Combines recurring billing, invoicing, payments, provisioning, and monitoring
    • Supports delinquency workflows, including suspension, dunning, and vacation mode
    • Offers integrations with ISP platforms plus a GraphQL API

    Where it doesn't

    • The listed subscriber tiers are billed annually
    • Premium features and integrations may affect the final quote
    • Support is not available 24/7

  • Splynx — where it wins

    • Supports recurring, prepaid and usage-based billing, including voice rating.
    • Automates invoices, collects payments and offers customer self-service.
    • Connects with accounting, payment, messaging and network systems.

    Where it doesn't

    • Core subscription cost varies with active subscriber count.
    • TR-069 provisioning is sold as separate, device-count-based ACS plans.
    • Support is limited to email and tickets, without 24/7 coverage.
  • Sonar8.5/10 · Paid

    Sonar brings ISP billing, payment collection, provisioning, and network operations into one cloud platform.

    Visit SonarFull verdict →
  • Splynx7.9/10 · 15-day trial

    Combines ISP billing, customer accounts and network operations, with flexible deployment.

    Visit SplynxFull verdict →

More comparisons

All billing and provisioning software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update