Tinkerhall

Get in touch

Write to support@khangazun.com. Say which model it is about, which device and system version you use, and what you expected.

Common questions

What are Close-up and Overview?

A model opens on a close-up of the part that matters, marked with a ring and a label. Overview shows the whole exhibit. Switching only moves the camera: the model keeps its pose and time.

How do I play, pause or slow a model down?

Use Play/Pause under the picture and the speed choices (¼×, ½×, 1×, 2×) in the top menu. Reset puts the model back at its start and the speed at 1×.

How do I zoom and move the picture?

Pinch with two fingers, or use the zoom button for the steps. Turn on Hand to drag the picture with one finger; with Hand off, a drag scrolls the page. On the Mac, hold a modifier key and scroll, or use the zoom buttons. Fit returns to the whole model.

A control looks greyed out.

Some actions only make sense in some poses, for example you cannot turn the lock with a key that does not match. The line under the picture says what is happening.

What is Try it?

The controls that belong to this model. On the iPhone it opens as a drawer under the picture; on the Mac and iPad it sits beside it. Tours open it for you.

What is free and what is Pro?

Six models are free for good: Lock and Key, Desk Fan, Wall Clock, Gear Pair, Heart Pump and Switch and Circuit. Tinkerhall Pro is one purchase that opens every other model and removes the watermark from Blueprint cards. It is not a subscription.

I bought Pro but the models are still locked.

Open Settings and choose Restore Purchases (also on the Pro screen). Use the same Apple ID you bought with. If it still does not unlock, email us with the date of the purchase.

Does Pro work on my other devices?

On your iPhone, iPad and Mac, yes: sign in with the same Apple ID and choose Restore Purchases. Android is a separate store and is not released yet.

What is a Blueprint?

A picture card of the model as it is now, with three facts. Choose Copy Image, Share or Save. Nothing is uploaded anywhere. Without Pro the card carries a light "Tinkerhall free version" watermark.

What are the badges?

The Inventor Passport counts the models you open, the tours you finish and the blueprints you draft. It is kept only on your device.

Do I need an account or the internet?

No account, ever. All the models are in the app and it works offline. Only Request a model needs the internet, and buying or restoring Pro goes through the App Store.

How do I request a model?

Open Settings and choose Request a model (or use the card at the end of the library). Add your vote to a model on the list, or tell us about a new one: the name, who it is for and, if you like, why. Please do not include personal details. You can send one request every 15 minutes.

Request a model says it cannot load the list.

Check your connection and tap Try again. The rest of the app works without the internet.

Are the facts and numbers exact?

They are teaching simplifications. Sizes, forces and timings are illustrative, and the body models explain how a mechanism works rather than how a person's body is doing. They are not advice.

Something looks wrong.

Please email us with the model and a description, or a screenshot. The Settings page has an Email the developer button that fills in your system and app version.