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Compare allApp info
- Installs
- 1+
- Category
- Finance
- Content rating
- Everyone
- Version
- 1.0.0
- Released
- Oct 5, 2026
- Last updated
- 6 Oct 2026
- In-app purchases
- No
- Contains ads
- Yes
- Promo video
- No
- Requires Android
- 8.0
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First release: 52 week, reverse, 100 envelope and custom savings challenges, a coin-grid jar, weekly reminders, a home-screen widget and backup.
Save money one cell a week. Any order, your currency, 100 envelopes too.
Weekjar turns saving money into a simple weekly habit: one cell a week, and by this time next year your jar is full. Pick a savings challenge, put the money aside, tap the cell. That's it. THE 52 WEEK MONEY CHALLENGE, YOUR WAY • 52 weeks · up: save $1 in week 1, $2 in week 2 … $52 in week 52. That's $1,378 in a year. • 52 weeks · down: start with $52 and finish with $1, so December is light. • 100 envelope challenge: envelopes 1 to 100, pick any envelope you like. $5,050 when you're done. • My own goal: enter your goal and how many cells, and Weekjar works out the amount per cell. Weekly, every 2 weeks or monthly – save on your payday. TAP ANY CELL, IN ANY ORDER Short this week? Fill a smaller cell. Got a bonus? Chip off the big ones at the end. Every cell is a round coin on a grid, so you can see the jar fill up. Long-press a cell to record what you actually put in, when it differs from the plan. YOUR CURRENCY, YOUR AMOUNTS Weekjar uses your phone's currency automatically – dollars, euros, pounds, won, yen and more – and you can change it per jar. Multiply the challenge ×2, ×5 or ×10 to save more. STAY ON TRACK WITHOUT NAGGING • A reminder when a new cell opens and on its last day – nothing on the other days. • Home-screen widget: see this week's amount and fill the cell with one tap, without opening the app. • Milestones at 25%, 50%, 75% and 100% so you can see the finish line coming. • Several jars at once: Christmas, a vacation, an emergency fund. YOUR DATA STAYS ON YOUR PHONE No account, no sign-up, no bank connection. Weekjar never moves money – it's your tracker, the money goes into your own savings account or envelope. Export a backup file any time and import it on a new phone. Good for: • the 52 week challenge and money saving challenge • the 100 envelope challenge • a Christmas fund, a vacation fund or a debt-free plan • saving with your kids, one cell a week Start your first jar today. Small amounts add up.