Expense Keep: Envelope Budget

Expense Keep has been quietly doing its job since 2013, racking up over 500,000 downloads and landing in the top 5 Finance charts across 33 countries. At just 5 MB, it is a lean, envelope-budgeting tool built around zero-based budgeting principles. The app supports multiple accounts, recurring transactions, and transfers between envelopes. For users tired of bloated finance apps, its stripped-down approach is genuinely refreshing, though some trade-offs come with that simplicity.

Envelope System Done Without the Clutter

The core appeal here is speed. Logging an expense feels immediate rather than ceremonial, which matters when you are standing in a checkout line. The envelope method maps well to zero-based budgeting, and the app supports transfers between envelopes alongside recurring transactions, covering the two features that trip up most lightweight budget tools. Multiple account tracking is also present, which removes the need to juggle separate apps for different spending areas.

Where the Minimalism Becomes a Limitation

A 5 MB footprint and a design philosophy this focused inevitably means some users will hit a ceiling. There is no mention of bank syncing or automated import, so every transaction is manual entry. For disciplined users that is fine, even preferred, but anyone expecting the convenience of automatic feeds will be disappointed. The free pricing with unspecified in-app purchases also leaves a question mark over which features require payment down the line.

Who Actually Benefits Here

Users who have tried apps like YNAB or Mint and found them overwhelming are the obvious fit. The 4.37 store rating across 2,000 reviews and a 13-year update history, with the most recent build pushed in June 2026, suggest a developer who is still actively invested. This is a solid pick for anyone committed to manual tracking as a mindful habit rather than an automated chore.