Release notes


Version 3.2.5

Date: February 27th, 2018

Bug: when opening the modal to edit the split of an expense, then clicking outside of the modal to make it disappear, one could not open the modal again.

Version 3.2.4

Date: February 11th, 2018

Bug: after updating the payor of an expense, the change did not appear in the list of expenses.

Bug: after selecting an expense, one could not select another expense and had to cancel before selecting the other expense.

Version 3.2.3

Date: January 13th, 2018

Improvement: changed the colors associated to the members of a group. Shows up in the rows of expenses and in the settings of an expenses sheet.

Version 3.2.2

Date: January 7th, 2018

Improvement: for the roommates mode, added a button to change the language.

Version 3.2.1

Date: January 6th, 2018

Bug: regression after last release. Clicking on an expense then clicking on the cancel button brought to an empty page.

Bug: emails were not sent since end of December.

Version 3.2

Date: January 2nd, 2018

Improvement: the page of debts shows the debts of all the groups. Removal of the sub-menus in "Debts" for each group (could be invisible if page too small).

Bug: regression after the update of December 17, th title of every pages was always "".

Version 3.1.14

Date: January 1st, 2018

Bug : one could not change the title and the currency of an "anonymous" expenses sheet.

Bug: one could try to update/create an invalid expense on some particuliar browsers.

Bug: some names of group that should appear colored on the list of expenses sheets could be transparent.

Bug: one could try to update/create an expenses sheet with an invalid split (everything set to zero or empty).

Improvement: when one clicks on an expense to update it, the save button stays non-activable until the expense changes.


Version 3.1.13

Date: December 26, 2017

Bug: Fixes some problemes of the user interface that appeared 2 weeks ago.

Version 3.1.12

Date: December 17, 2017

Bug: After a technical update a week ago, one could not go back after editing an expense on mobile.

Version 3.1.11

Date: April 29, 2017

Bug: Version for roommates: when one invited someone after having register her in an expenses sheet, the invited person did not see the expenses sheets.

Version 3.1.10

Date: April 9, 2017

Creation of this page of the releases of

Version 3.1.9

Date: April 8, 2017

You can now modify and delete the transactions created manually (all transactions except those recorded after closing an expenses sheet).

Version 3.1.8

Date: 2 April 2017

Replacement of the term "credit" by the term “balance”, more correct from an accounting point of view.

Version 3.1.7

Date: March 23, 2017

A presentation of for weekends, holidays, parties and other events with friends is available from the homepage: see the presentation.

Version 3.1.6

Date: March 17, 2017

You can now choose the display language of the site from the homepage.

Version 3.1.5

Date: March 16, 2017

Bug: When an expense sheet was created in the application for roommates, users associated with the sheet did not see the sheet when they logged in.

Version 3.1.4

Date: March 14, 2017

The button to delete an expenses sheet has been moved from the toolbar to the sheet settings screen.

Version 3.1.3

Date: March 13, 2017

  • The Google user's avatar is displayed.
  • Fixed display on iOS 7.

Version 3.1.1

Date: March 13, 2017

Bug: tabs not well displayed in the view of an expenses sheet (particularly on small devices)

Version 3.1.0

Date: February 20, 2017

Version 3 is finally available for roommates:

  • Completely responsive, like the version for weekends between friends;
  • no more notion of simplifiable debts that no one understood;
  • no more debts in expense sheets that was confusing.
Version 3.1.0, for roommates, on mobile Version 3.1.0, for roommates, on tablet
Home page of the roommates application

Version 3.0.7

Date: February 10, 2017

Bug: modal dialogs did not show up.

Version 3.0.6

Date: January 21, 2017

Bug: did not work on Firefox anymore.


Version 3.0.5

Date: November 27, 2016

Performance improvement: do not ask the server about last sheet events when the window is not visible.

Version 3.0.4

Date: November 26, 2016


  • When creating new expense with split, split was not saved.
  • When adding/deleting participants, computation of balance took previous participants into account.

Version 3.0.3

Date: November 22, 2016

You can now change the currency of the expenses sheet, in the settings tab.

Version 3.0.2

Date: November 21, 2016

Bug: computation of IOUs was wrong after adding/deleting/updating expenses.

Version 3.0.1

Date: November 20, 2016

Automatic computation of IOUs (no need to validate the expenses sheet) so that you know instantly who owes how much to whom.

Version 3.0.0

Date: November 14, 2016

Total refactoring of the anonymous version (version for holidays and events with friends):

  • fully responsive, works on smartphnoe, tablets and desktop screens;
  • graphical design inspired by Material Design.
Version 3.0.0 of, on mobile Version 3.0.0 of ``, on tablet
Version 3.0.0 of ``


Version 2.1.0

Date: October 1st, 2012

Major technical update (modification of the data schema).

Version 2.0.5

Date: August 21, 2012

You can give your email when you create an anonymous expense sheet, so that you can receive the link to the expense sheet. All you have to do is send the link to your friends.

Expense report link sent by email
Expense report link sent by email

Version 2.0.4

Date: August 19, 2012

Improved interface and technical update (Python 2.7)

Version 2.0.3

Date: August 11, 2012

You can cancel the deletion of an expense report.

Version 2.0.2

Date: August 5, 2012

Bug fixes and interface improvements.


Version 2.0.1

Date: December 21, 2011

Total redesign of the graphic theme.

Version 2.0.1 of who owes who
Version 2.0.1 of ``

Version 2.0.0

Date: May 21, 2011

Version 2.0.0 of
Version 2.0.0 of ``

Version 1.6.2

Date: May 10, 2011

You can create an expense sheet without having to sign in. Useful for friends who go on holiday and do not need to manage several expenses sheets like roommates.

Anonymous expenditure sheet
Anonymous expenses sheet

Version 1.6.1

Date: April 18, 2011

You can export a book of accounts as an excel file or CSV in order to make any kind of statistics.

Statistics of the account book
Statistics of the account book

Version 1.5.1

Date: April 7, 2011

You can change the distribution of a single expense.

Distribution of a single expense
Distribution of a single expense

Version 1.5.1

Date: April 2, 2011

  • A single column to capture the “what” and the commentary of an expense.
  • Check box to “see only my expenses”
Column “what” of an expenses sheet
Column “what” of an expenses sheet

Version 1.5.0

Date: 30 mars 2011

In the debts panel, you can now see the debts of the open expenses sheets.

Debts of open expenses sheets
Debts of open expenses sheets

Version 1.4.5

Date: February 22, 2011

You can copy or move expenses from one sheet to another.

Copy/move an expenses sheet
Copy/move an expenses sheet

Version 1.4.4

Date: February 20, 2011

Wizard of creation of an expense sheet to explain the concept of account book.

Wizard to create a sheet
Wizard to create a sheet

Version 1.4.3

Date: February 17, 2011

From the statistics of an open expenses sheet, it is now possible to mark a debt as paid, which automatically closes the sheet.

Version 1.4.2

Date: January 11, 2011

Each participant's share of an expense sheet can be changed. For example if you go on vacation with a couple who has a child, you can count them 2.5 parts.

Different units in an expense sheet
Different units in an expense sheet


Version 1.4.1

Date: 21 November 2010

Notification when an account book contains debts that can be simplified.

Notification of debts simplification solution
Notification of debts simplification solution

Version 1.4.0

Date: November 10, 2010

New screen to configure everything:

  • management of the accounts books (groups),
  • management of expenditure categories,
  • currency management,
  • management of participants.
Settings screen
Settings screen

Version 1.3.2

Date: March 22, 2010

Expense sheets can be shared with your friends without them needing to identify themselves, just send them the link. Useful to do the accounts quickly made after a weekend with friends.

Shared expenses sheet
Shared expenses sheet

Version 1.3.1

Date: 2 March 2010

  • Lists of expenses displayed together
  • More decent graphic design
Version 1.3.1 of who owes who
Version 1.3.1 of “who owes who”

Version 1.3.0

Date: February 18, 2010

Graphic redesign:

  • debts displayed at the same time as expenditure,
  • changed graphical design.
Youth error
Youth error


Version 1.2.0

Date: December 19, 2009

  • Technical redesign.
  • Form for creating an enhanced spending list.
  • You can mark a debt as paid directly from the statistics in a list of expenses.

Version 1.1.3

Date: November 25, 2009

New state for a list of expenses: “paid”, when the list is closed and all the debts it has incurred are paid.

Paid state of a shared expense list
Paid state of a shared expense list

Version 1.1.2

Date: 13 October 2009

Ability to create debt manually.

Registering an IOU
Registering an IOU

Version 1.1.1

Date: May 24, 2009

  • A list of shared expenses can now be configured after creation.
  • Debt simplification algorithm tested, optimized and approved following the latest complicated accounts the roommates of the Pécettes road.

Version 1.1.0

Date: May 24, 2009

Implementation of the manual simplification of the debts of a group.

Debts simplification
Debts simplification

Version 1.0.2

Date: March 1st 2009

Version corrected and tested with real roommates.

Version 1.0.2 of who owes who
Version 1.0.2 of “who owes who”

Version 1.0.1

Date: February 19, 2009

  • More possible to label expense lists.
  • Finished statistics from a list of expenses.

Version 1.0.0

Date: 6 February 2009

The first version of “who owes to whom”:

  • management of shared expenses list,
  • input of expenses,
  • statistics on a list of expenditure,
  • archiving of a list of expenses and generation of induced debts,
  • marking debts as paid.
First official version of who owes who
First official version of “who owes who”


Version 0.0.0

Date: 4 April 2008

Ancestor of “who owes who” created exclusively for the rommates of the road of Pécettes.

Ancestor of who owes who
Ancestor of “who owes who”