Gram Weenie is a tool to track and calulate your Full Skin Out weight for your backpacking gear. The main screen is your master list of gear and you can create trip lists to customize and calculate your FSO weight for each trip.

* Export Gear List via Email
* List of 77 Cottage Manufacturers with links to their websites
- List from

I'm always open to feature requests or bug reports. Please email me with any requests or complaints and I'll do my best to take care of the issue.

Thank you,

What’s New

Version 2.3

Updates for iOS 11.
Removed deprecated Dropbox API.

Ratings and Reviews

4.5 out of 5
6 Ratings

6 Ratings

Mike1081 ,

Best UL backpacking app I’ve found

I’ve checked out other backpacking weight calculators, even the paid apps, but I keep coming back to this one. This developer actually gets the breakdown of base weight, pack weight and ‘skin out’ weight. I would give it a 5 if it had a couple other features, such as being able duplicate trip lists and edit the trip list names, and select specific quantities of items, like tarp/tent stakes, or customizable categories. Otherwise, it is a solid, no frills app that has worked well for me for years now.

madsent ,

Not bad.

Really useful for evaluating your load. It's easy to see how small changes in your gear affect your pack weight. However, moving and editing items needs work. When you edit an item weight defaults to grams. On the main list you have to hit the trash can icon to be able to sort the list. You can't edit trip names. A cloud based sync would be nice. Accidentally deleted a lot of work when I pushed to Dropbox instead of pulling. My fault, but an easy mistake to make. Really needs to support landscape view on iPhone. I can't read most of my entries on portrait view because too much of the name is cut off. Really only useful on iPad. Overall a great concept but it's clunky and not particularly user friendly.

sh$/ nickname ,

Nice minimalism

Yes, it’s a little basic probably in terms of functionality, as others have mentioned. However, I love its minimal text, the type face, the layout, the icon logo.


Pignology, LLC
958.5 KB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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