Linkfuse spreads your connections across Wi-Fi, Ethernet, cellular tethers and nearby devices — entirely on your machine. No server in the middle, so your latency stays yours.
Free forever tier · Pro from $39/yr · no account, no telemetry.
Each dot is one connection, on one link. That is per-flow multiplexing — not packet-level bonding, which would need a server.
median request while idle
median under a full-speed download
servers between you and the web
The CLI and TUI are open source (MIT) and free forever.
curl -fsSL https://linkfuse.dfacto.ai/install | bashnpm and brew land with 0.9.0.
Free is a smart link selector. Pro is the multi-link scheduler — the part that took the engineering.
Each connection is placed on one link — the best one available at that moment. Many connections spread across many links, which is how real browsing works.
Traffic leaves through your real interfaces. No extra hop, no slowest-link penalty, nothing to trust but your own machine.
Five placement algorithms, measured live. The default keeps p50 latency near your fastest link even while a download saturates the pool.
Bulk transfers are quarantined away from interactive traffic, so clicks stay crisp while 4K streams.
New connections dial your two best links at once. First answer wins; the loser becomes a free measurement.
Borrow a nearby phone's connection as overflow capacity — engaged only when your own links saturate.
Save a configuration as a named profile, then compare every profile against every site you care about in one grid. A column measured on half your sites never outranks one measured on all of them.
Bonding splits one connection across your links, so it passes through a relay you host. That transport is encrypted end to end — these are the actual primitives, and both ends declare the same protocol name byte for byte.
Fuse_XXpsk3_25519+MLKEM768_ChaChaPoly_SHA256_v4Encryption is not the paid part. Bonding is, because it needs a relay to reassemble the stream — and there is no weakened tier: without bonding this transport is not in your path at all, rather than running with less security. The kill switch, split tunnelling and failover are free on every tier.
Full HTTPS request completion, through the live proxy.
| Scenario | Single link | Linkfuse |
|---|---|---|
| Idle browsing (p50) | 155 ms | 76 ms |
| Under 60 MB download (p50) | 309 ms | 82 ms |
| Under load (p95) | 542 ms | 111 ms |
| TLS handshake, 7 ms link (2026-08-20) | 53–63 ms | 42–52 ms |
3-link pool (100 Mbps LAN, Wi-Fi, cellular tether). Your numbers depend on your links — Linkfuse helps when you have two or more that work.
Every install starts with 14 days of Pro. No card, no account. It lapses to Free on its own.
See your network clearly. Forever.
Every link you have, working at once.
or $5.99/month · $79 once for a lifetime licence
Start 14-day trialFor crews who cannot afford to drop.
or $12/seat/month
Contact usOne licence covers every platform you use, up to the device limit. Prices in USD; local currency and tax are applied at checkout by our merchant of record.
14 days of Pro, no card. If your links do not get faster, you have lost nothing.
macOS 14+ · iOS/iPadOS 15+ · Windows, Linux and Android in progress
Measure them. Every tuning setting is grouped under what it buys — latency, throughput or privacy — and the app ships four profiles computed from those groups: Lowest latency, Highest throughput, Most private, and Stock as the baseline. Put your own sites in the comparison grid, hit Run everything, and each profile is measured against each site with a cold page load. The grid ranks the columns on the median, so one site having a bad afternoon cannot decide it, and a profile measured on two of your five sites is never ranked above one measured on all five. Save your own mixture — the privacy half of one, the throughput half of another — as a named profile and it joins the comparison.
The four computed profiles are never limited: paywalling the app's own answer to “what should I switch on” would be paywalling the point. Free compares them across 3 sites and keeps 1 profile of your own. Pro keeps 10 across 25 sites, Teams 50 across 100. Saving over a profile you already have is an edit and is never blocked, at any tier — otherwise a cap would stop you correcting the one profile you are allowed.
Speedify does packet-level bonding through their VPN servers: one download can reach the combined speed, but every packet takes an extra hop and the slowest link can gate you. Linkfuse works per connection — each connection goes directly over your best link, with no server in the middle. Lower latency, no monthly server cost, nothing routed through anyone else's cloud.
Honestly: no. Linkfuse places each connection on one link, so one download runs at one link's speed. What gets faster is everything that opens many connections — web pages, APIs, video, sync, builds — because those spread across all your links at once. (An optional single-stream bonding mode exists for true packet-level splitting, but it needs a relay you host yourself.)
No. There are no Linkfuse servers. Everything runs on your machine, and we are technically incapable of seeing your traffic.
Live per-interface metrics, automatic failover, and the entire CLI/TUI (MIT licensed) — forever, with no time limit. Free keeps one link active at a time; Pro is what runs several at once.
macOS and iOS/iPadOS today, plus the CLI on any Unix. Windows, Linux and Android builds are in progress — we will not list them as done until the engine actually works there.
Yes — 14 days of Pro, no card required. When it ends the app quietly returns to Free. Nothing breaks and nothing nags.
14 days, no questions asked. Email support@dfacto.ai.