Last updated 30 October 2026
These terms cover wren for macOS, wren for iPhone and this website, all published by SergeDevs. Installing either app or buying a licence means you accept them.
The iPhone app costs nothing: no trial, no licence, no in-app purchases, nothing locked. The sections below about the trial, licences and payment are about the Mac app only.
It comes from the App Store, so Apple's Licensed Application End User License Agreement applies to it as well, and you may use it on any Apple device you own or control as the App Store's usage rules allow. These terms are between you and SergeDevs, not Apple: Apple is not responsible for the app, its support, or any claim about it, but Apple and its subsidiaries may enforce these terms as third-party beneficiaries.
The first fourteen days are the whole app, with nothing withheld and no card required. After that the top three of the five Now slots stay locked until a licence is activated. Everything else keeps working indefinitely — the rest of the list, Later, review, and capture, which is never blocked. Your tasks remain yours and readable whether you buy or not.
A licence is a personal, non-exclusive, non-transferable right to use wren for as long as you like, for personal or business work, on a Mac you own or control. One licence covers one active machine at a time; Settings → Licence removes the key so you can activate it on another.
Please don't share keys publicly, resell them, or work around the activation. A key that turns up in the wild, or a purchase that is charged back, can be revoked — the app checks in with Polar about once a week.
Reverse engineering for interoperability, or anything else your local law gives you the right to do regardless of a contract, is untouched by the above.
Polar Software Inc. is the merchant of record for the Mac app. They take the payment, handle tax, issue the receipt and email the licence key; their terms apply to the transaction itself.
If wren is not what you expected, write to contact@sergedevs.com and we will refund you. That is the whole policy — the trial exists so you can find out before paying, and an unhappy customer is worse for us than a refund.
wren stores everything on your own devices, and syncs only through your own iCloud, only if you switch it on. That is the point, and it has a consequence: there is no backup but yours. If a disk fails or the file is deleted, we cannot restore it, because we never had a copy.
Sync is not a backup either: a task you delete on one device is deleted on the others.
Updates are provided when there are updates to provide. A licence is not a promise of a particular feature, a particular release cadence, or compatibility with a future version of macOS or iOS — though we will obviously try.
wren is provided "as is", without warranty of any kind, express or implied, including merchantability and fitness for a particular purpose. It is a tool for keeping track of your own intentions; it is not a reminder service, it does not guarantee that you will be told about anything at any particular moment, and it should not be relied on where being late has serious consequences.
To the extent the law allows, our total liability for anything arising out of either app or this website is limited to what you actually paid us, if anything — the price of a Mac licence, and nothing for the free iPhone app. We are not liable for lost data, lost profits, or any indirect or consequential loss.
Nothing here limits liability that cannot be limited — fraud, death or personal injury caused by negligence, or the statutory consumer rights you have where you live.
You can stop using wren at any time; delete the app and its data and that is that. We can end a licence that is being used in breach of these terms, and will refund the unused part of anything you have paid if we do.
These terms can change; the date at the top says when they last did. A change that affects a licence you already bought does not apply retroactively to that purchase.
SergeDevs — contact@sergedevs.com. A real person reads it.