Comparison · Updated September 2026

Swift Fox vs Sonar

Sonar is a mature, capable billing and OSS platform — one of the most established in the ISP industry, especially in enterprise operations. Swift Fox comes at the problem from the opposite direction, as a network platform that grew billing tools rather than the reverse. This page lays out what that means in practice — including how the two work together, since Swift Fox integrates directly with Sonar. If we get a fact wrong, tell us and we'll fix it.

Choose Sonar if…

Your biggest challenges are on the business side at enterprise scale — complex US tax jurisdictions, large inventory and field operations, GPS fleet tracking, MDU management — and you're comfortable pairing it with a separate QoE appliance for shaping.

Choose Swift Fox if…

You want billing and the network layer in one system: monitoring with paging, built-in QoE shaping, MPLS auto-balancing, DDoS protection, captive-portal reconnects, and a hosted call centre — where your billing packages directly drive your traffic shaping.

The philosophical difference

Business-first vs. network-first

Sonar started from the business side. Billing, CRM, ticketing, inventory, field ops — and it does those well, with things like embedded payments (sonarPay), pre-built tax integrations, and strong reporting. It also includes ICMP/SNMP network monitoring. For QoE shaping, most ISPs using Sonar pair it with a separate appliance — usually Preseem.

Swift Fox started from the network side. It was built to run our own WISP — radio-level monitoring across every vendor, backhaul capacity measurement, MPLS traffic balancing, fq_codel shaping — and grew billing, a customer portal, and a hosted call centre on top, so the whole loop is one system: an unpaid invoice becomes a captive-portal disconnect becomes a self-service reconnect, with no API glue between vendors.

At enterprise business-operations for larger ISPs, Sonar is ahead. On the network side, Sonar watches your network, while Swift Fox also acts on what it sees — shaping, rebalancing, mitigating, and reconnecting automatically. Nothing in Sonar's stack (or anyone's) does MPLS auto-balancing, PFO, DDoS blackholing, or CGNAT management.

Feature by feature

What each platform does

CapabilitySonarSwift Fox
Recurring billing, invoicing & card processingYesincl. embedded sonarPay processingYes150+ merchant providers via Spreedly — card data is tokenized, so you can switch processors without re-collecting cards
Customer self-service portalYesYesworks even while disconnected — pay to auto-reconnect
US tax jurisdiction integrationsYespre-built integrationsBasic tax handling
Inventory, purchase orders & GPS fleet trackingYes—
Ticketing & field schedulingYesin-depth and zone-basedLimitedwith calendar sync & customer notifications
Hosted PBX with call recording on accounts—Yes, optional tieryour toll-free number, minutes included
Network monitoring with thresholds & on-call pagingYesICMP/SNMP polling (60s cycle), thresholds, on-call rotations, topology mappingYesplus radio-level data: signal, MCS & live backhaul capacity from every major vendor
Delinquency automation (disconnect / redirect for nonpayment)Yesvia provisioning: drop, slow, or redirect delinquent connectionsYesbranded captive portal — customer pays online and reconnects instantly
fq_codel QoE shaping to plan ratesPair with a QoE toolcommonly Preseem, via API integrationBuilt inplus tier-fair PFO shaping during congestion
Backhaul capacity measurement—Yessignal / MCS / throughput from every major vendor
MPLS auto traffic balancing (RSVP-TE)—Yesunique to Swift Fox
DDoS detection & CGNAT management—Yes
Works with the other platformOpen APIYesSonar integration for disconnect / reconnect & account sync
PricingFrom $1.25 / sub / mo$500 monthly minimum with contractFrom $0.75 / sub / mo network tier$1.50 with billing; $50–100 minimums, no contract

Sonar information sourced from sonar.software and public listings as of July 2026. Sonar is a trademark of its respective owner; Swift Fox Systems is not affiliated with Sonar Software. If anything here is outdated or inaccurate, email us and we'll correct it promptly.

Running both

You don't have to choose today

Billing migrations can be painful — we know, we've done them. That's why Swift Fox integrates with Sonar directly: keep Sonar for billing, and add the entire Swift Fox network layer alongside it.

Keep Sonar and add the network layer

With the Network Management tier, Swift Fox syncs with Sonar so unpaid accounts trigger captive-portal disconnects and payments trigger automatic reconnects — while you gain full per-CPE monitoring with paging, built-in QoE shaping, backhaul capacity measurement, MPLS auto-balancing, DDoS protection, and CGNAT. No billing migration, no disruption. If you later decide to consolidate onto Swift Fox billing, you can do that on your own schedule, with our help.

Common questions

Frequently asked questions

We're on Sonar and dreading a billing migration. What's the realistic path?
Start with the Network Management tier — it requires no billing changes at all. Swift Fox syncs account status with Sonar for disconnects and reconnects, and you get the full monitoring and automation stack immediately. Most operators who eventually consolidate billing do it after a season of running both, once their staff is comfortable in Swift Fox. Some never consolidate, and that's fine too.
Is Swift Fox billing as in-depth as Sonar's?
For the core WISP workflow — recurring billing, card and direct-debit processing, branded statements, usage-based overages, a self-service portal, and GAAP/IFRS-compliant reporting — yes. Sonar is more capable on enterprise operations: complex US tax jurisdictions, inventory and purchase orders, GPS fleet tracking, and MDU management. If those are central to your business, keeping Sonar for billing and adding Swift Fox for the network can be a solid long-term option.
Does Sonar do network monitoring?
Yes — Sonar includes ICMP/SNMP monitoring on a 60-second polling cycle with thresholds, on-call rotations, and topology mapping, and it works well. The difference is what the monitoring is connected to. Swift Fox reads radio-level data (signal, MCS, live backhaul capacity) from every major wireless vendor and feeds it into automation: QoE shaping, tier-fair PFO during congestion, MPLS traffic rebalancing, and DDoS mitigation. Sonar watches your network, while Swift Fox also acts on what it sees.
Is Sonar worth it for a WISP with under 1,000 subscribers?
It can be, and a lot of small WISPs run it happily. The thing to work out first is the minimum. Sonar starts at $1.25 per subscriber per month with a $500 monthly minimum on a contract, so below 400 subscribers you're paying for 400 whether you have them or not (at 200 subscribers that works out to $2.50 each). Above that the per-subscriber price is fairly reasonable, and it's lower than our billing tier. What usually pushes the real total higher is what gets bought beside it, since most Sonar shops pair it with a separate QoE shaping appliance and some add a monitoring tool on top. Our Network + Billing tier is $1.50 per subscriber with a $100 minimum and no contract, and it includes the shaping, the radio-level monitoring with paging, and the MPLS balancing, so below about 330 subscribers it comes in under Sonar's minimum on its own. Past that, Sonar is cheaper on billing and the comparison comes down to whether you'd be buying shaping and monitoring separately. If you're already on Sonar and happy with the billing side, the cheaper move is usually to keep it and add our $0.75 Network Management tier beside it.
Sonar is too expensive for a WISP our size. What else is out there?
The usual list is Splynx, Powercode, Visp, UISP if you're all Ubiquiti, and us, and they aren't all solving the same problem. Splynx is the cheapest on billing at $0.55 per subscriber (with a 400-subscriber minimum licence, about $220 a month) and UISP is free, but both leave you finding your own QoE shaping, and their monitoring is the general-purpose ping and SNMP kind rather than reading signal and capacity from the radios. Powercode is quoted after a sales call and you run the server yourself. Swift Fox is $1.50 per subscriber for billing plus the whole network layer, or $0.75 for the network layer on its own beside a billing system you already have, with a $50 or $100 monthly minimum and no contract. If the reason Sonar feels expensive is the $500 minimum, we're a fairly direct fit. If it's the per-subscriber price at a few thousand subscribers, Splynx for billing with our network tier beside it is probably the cheapest combination we'd suggest, and we sync with Splynx so that setup is supported.
Who builds Swift Fox?
Swift Fox was built by operators who founded and ran a multi-thousand-subscriber WISP in southern Alberta for ten years. Every feature was built to solve problems we hit on our own network. When you book a demo, you talk to the founder who wrote the code.

See it running next to Sonar, live

Book a 20-minute demo and we'll walk through the Sonar integration with your actual workflow in mind. No slide deck — just the product, and the person who built it.

Questions first? [email protected] · 1-866-779-1608