Zynk makes moving data effortless, reliable, and secure. Transfer files instantly between phones, tablets, and computers with zero configuration required.
Who it is for
People and teams that move files, folders and messages between phones, computers and servers.
Problem it solves
Cross-device transfer tools can impose file-size limits, require cloud storage or demand configuration before two devices can exchange data.
The solution
Zynk transfers files and messages directly between devices with end-to-end encryption and no stated size limit.
What makes it unique
It supports desktop, mobile and command-line devices while also providing a shareable link when the recipient does not use Zynk.
Features4 listed
Files that fly.
Your files go straight to the other device. 85 GB of RAW photos in 12 minutes.
Every device you own.
Mac, Windows, Linux, iOS, Android, Steam Deck, Raspberry Pi — one app that talks to all of them.
For everyone else, a link.
Upload files, get a link. Anyone downloads in their browser — no Zynk, no account, no sign-up.
Lives in your menu bar.
Drop a file on the menu bar icon, pick a contact, done. The full Zynk send flow lives in 32 pixels of your screen.
Details
Built for
People and teams that move files, folders and messages between phones, computers and servers.
In IndieTools' mobile lab test on November 12, 2026, the Zynk website scored 99 out of 100 (good). All 5 lab metrics were rated good. It placed #321 overall in the finalized week 2026-W45.
Measured (UTC)
LCPLargest Contentful Paint
1.05 s
Good
TBTTotal Blocking Time
48 ms
Good
CLSCumulative Layout Shift
0.000
Good
FCPFirst Contentful Paint
1.05 s
Good
Ranked #321 overall in 2026-W45, best #13.
Zynk lab metrics
Speed metrics for Zynk, measured November 12, 2026
Metric
Result
Status
Trend
Mobile lab testMid-range phone on a throttled 4G connection, two runs averaged. Changes compare with the run on Nov 11.
Performance score
GoodAbout the same
99 / 100
GoodAbout the same
First Contentful PaintFCP
Good345 ms faster
1.05 s
Good345 ms faster
Largest Contentful PaintLCP
Good345 ms faster
1.05 s
Good345 ms faster
Speed IndexSI
Good233 ms slower
3.25 s
Good233 ms slower
Total Blocking TimeTBT
Good33 ms faster
48 ms
Good33 ms faster
Cumulative Layout ShiftCLS
GoodAbout the same
0.000
GoodAbout the same
Unthrottled observationsTimed on the test machine's own fast connection, so they read lower than the lab metrics above.
Page loadLoad
76 ms faster
489 ms
76 ms faster
Server responseTTFB
61 ms faster
18 ms
61 ms faster
Zynk performance history
55 comparable mobile lab runs since September 27, 2026. Choose a metric and a range, then move along the line to read each run.
Zynk Speed ranking
Weekly Speed standing for Zynk
Weekly standingLatest finalized week 2026-W45. Bests cover the last 52 finalized weeks.
Stored lab observations from controlled test runs, not real-user Core Web Vitals or a guarantee of search rankings. Weekly standings remain attached to their finalized edition.Method psi-mobile-two-sample-mean-v1, 2 samples per reading. Lab results can vary between runs.
Model difference−5. DR4 is 5 points lower than DR3.
Measured · zynk.it
What do DR4, DR3 and the model difference mean?
DR4:
Ahrefs' newer model. It gives more weight to links from sites with organic search traffic and rates a subdomain on its own links.
DR3:
The previous model, shown in the Ahrefs app until 1 December 2026.
Model difference:
DR4 minus DR3 for the same domain. The models calculate differently, so this is not growth or a drop; the “since” lines compare each model with itself.
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