Every comparison article you’ll read about budgeting apps prices the apps wrong. The price isn’t $99 vs $79 vs $59 per year. The price is what it costs you to leave the app you just chose.
Three years of YNAB at $109/yr looks like $327. But if you migrate to Monarch at year three because the kids arrived and you need a shared household plan, the real cost is closer to $700 — the subscriptions plus a weekend re-categorising 18 months of transactions, plus the split rules that didn’t export, plus the partner-annotations that lived inside YNAB’s category notes and don’t map to anything in Monarch’s data model.
Nobody in the top ten Google results for “best budgeting app” tells you this, and that’s not an oversight. The affiliate revenue model in this category rewards making you try a new app every year. We’re going to do the opposite: rank for the app you’ll still be using in 2031.
What compounds in a budgeting app over time
When you use a budgeting app seriously for 12+ months, four types of value accumulate — and none of them are transferable.
1. Categorisation correction history. Every time you correct a miscategorised transaction, you’re training the app’s rules engine on your spending. After 18 months, your app knows that “AMZN*PRIME” is a subscription, “WHOLE FOODS MARKET” is groceries, and the mysterious “SQUARE *PARKRUN” is neither shopping nor food — it’s the £2 coffee at your Saturday morning run. This knowledge lives in the app’s database as rules attached to your account. It does not export.
2. Split rules. Your Costco rule (“60% groceries / 30% household / 10% clothing — varies”) was set once and has applied correctly for 24 months. In YNAB this is a transaction note. In Monarch it’s a recurring split template. Neither format is readable by the other app.
3. Partner annotations. In shared-household apps, your partner’s category overrides, notes, and corrections are embedded in the shared transaction history. When you migrate, you can export the transactions — but not the reasoning. “Why did we category this as ‘Gift’ not ‘Dining’?” Because it was a birthday dinner. That context evaporates.
4. Account-link history. You’ve spent 18 months re-authorising bank feeds when they broke, solving the “Bank of Scotland doesn’t connect” problem with a workaround, and building up a list of accounts that sync reliably and accounts you’ve accepted will need a manual CSV top-up. In a new app, you start this process from zero.
The 5-year cost calculation
Worked example for a typical user switching from YNAB to Monarch at year 3:
| Cost component | Estimate |
|---|---|
| YNAB subscriptions (3 years Ã- $109) | $327 |
| Monarch subscriptions (2 years Ã- $99.99, assuming staying) | $199.98 |
| Re-categorisation labour (2,500 transactions Ã- 5 sec/transaction) | ~3.5 hours |
| Re-categorisation labour cost at £25/hr | £87.50 |
| Split rule rebuild (estimate 40 complex splits Ã- 10 min) | ~6.5 hours |
| Split rule labour cost at £25/hr | £162.50 |
| Account re-linking and debugging | ~2 hours |
| Account re-linking labour at £25/hr | £50 |
| Total real cost | ~$750 + 12 hours |
The $750 is not the subscription cost of the better app. It’s the subscription cost of the first app plus the migration tax of switching to the better one.
The honest conclusion this produces
If you’re choosing a budgeting app today, choose for year 5, not year 1. The decision criteria change significantly:
Year 1 decision criteria (what listicles optimise for):
- Which app has the best first-week UX?
- Which one has the most features on the comparison table?
- Which one is cheapest right now?
Year 5 decision criteria (what matters):
- Is this app likely to still exist in 5 years? (YNAB: yes; many smaller apps: uncertain)
- Does it support the household shape I’ll have in 5 years? (Kids arriving? Partner joining? Moving countries?)
- Does its data model align with my mental model of money, or will I keep fighting it?
- Is the categorisation approach I build up here transferable if I ever do switch?
The case for starting right
The best outcome is picking the right app on the first try and never switching. This is why the decision wizard exists — 5 questions that surface your household shape, methodology preference, and device constraints before you commit. Use it before you sign up for a trial.
The second-best outcome is switching once, early, before you’ve accumulated significant history. If you’ve been on an app for 6 weeks and it’s not clicking, leave now. The switching cost at 6 weeks is near-zero. At 18 months, it’s material.
The worst outcome is staying in a bad-fit app for 3 years because the switching cost feels too high. This is the sunk cost fallacy applied to software — the money you’ve spent on YNAB doesn’t make YNAB the right app for your current situation.
Tools on this site that operationalise this insight
- Decision Wizard — 5 questions to find your 5-year fit before you commit
- Switching Cost Calculator — put in your numbers and see the real migration cost
- YNAB vs Monarch comparison — the most common switch direction, with an honest assessment of when it makes sense