Questions

Do I need an internet connection, and does it phone home?

You need one to download it, and once a year after that to keep the unlock current. In between, Tandem plays with the internet unplugged.

Unlocking your key asks the licence server — but if it cannot be reached, the key unlocks anyway for seven days, and Tandem asks again each time it starts, sending the key again until the server answers. Unlocking sends the key itself with a one-way code for the machine, and gets back a file that is kept in your Windows profile. From then on each launch checks that file instead, without sending your key again. It is good for a year.

Then, once per launch and about half a minute in, it asks the server whether your key has been moved to another PC. That request carries a 12-character licence reference and the same one-way code — not the key, no filename, no folder, nothing about what you play. If it cannot reach the server, nothing changes and the app carries on.

That same check also renews the year, and it does it without your key: once the unlock file is inside its last two months, one launch that reaches the server and stays open half a minute moves the year forward. Nothing is shown and nothing is asked. So in normal use, unlocking is a one-time thing.

Those two requests are the only things Tandem sends to a server of mine. What else goes out depends on what you use: in the headset, with a licence, a scene with no motion file can be looked up at a script source you have added yourself — section 07 of the overview has the detail.

What if I never let it online again?

It keeps working for the year, then seven days more, then falls back to the free build until a launch that reaches the server — which unlocks it again straight away. Your key and your settings are untouched either way.

Does it work without a device?

Yes. It is a complete video player with an intensity timeline. The device parts activate when one is connected.

Where does the motion come from?

You bring your own motion files. Tandem does not include or provide any.

Does it change my motion files?

Only if you ask it to. Depth, reach, speed, latency and the generated axes are all live — they shape what goes to the device and leave the file alone. The region editor is the one part that writes, and saving keeps a one-time .bak of the original beside it.

What does the free build actually do?

It plays. Library, search, filters, thumbnails, device sync over every connection type, the intensity strip, seek, latency offset, and headset playback. What a Viewer key adds is the shaping and the editing, along with Safety Mode and the other sixteen themes. A Full key adds the generator on top: Regenerate and Generate scripts. The full comparison is on the pricing page, row by row.

Is there an installer?

No. You unzip a folder and run the .exe. Nothing is installed, nothing is written to your registry, and nothing runs at startup.

Windows says it protected my PC. Is that a problem?

No. The first time you run Tandem, Windows may show Windows protected your PC. Click More info, then Run anyway. Tandem is not code-signed, so this warning is expected. Windows asks once for each download, so again after an update.

On a Mac, macOS blocks the first open. Go to System Settings, then Privacy & Security, and click Open Anyway. You only do this once.

How many machines can I use my key on?

One, and you can move it to a different one — the first move free, after that once every 30 days. Moving it means pasting your key on the new machine; there is nothing to deactivate first — but on a PC you are leaving for good, use Remove from this PC, because a PC that still has the key saved takes it back if Tandem is opened there once a move is allowed again. New PC, new drive, fresh Windows: if it ever refuses when it should not, message me with your order ID and I will clear it the same day.

I have two PCs. Can I use it on both?

Buy a second key. One key runs on one PC at a time, so two PCs in use at once need two keys. You can add extra keys to the same order.

Can I give one as a gift?

Yes, and you can check it works on your own PC first. The first move a key makes is free, so pasting it on theirs afterwards takes it straight over. It is the move after that which waits 30 days.

I bought it — where is my key?

On the order page immediately after payment, and in the email from the shop. If the email is not there, check spam. Still nothing? Message me with your order ID.

How do I reach you?

Email infinitescripts2@gmail.com. If it is about a key, include your order ID.