Monthly vs Left
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Monthly
This app helps you understand your real monthly budget by automatically accounting for fixed costs like rent and subscriptions. It provides clear statistics and payment reminders to help you manage your finances without manual entry.
- Automatic fixed cost calculation
- Income and expense tracking
- Payment reminders
- Category-based spending statistics
- CSV data export
- Home screen widgets
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Monthly shows what’s left of your income after rent, bills, and subscriptions – without tracking every coffee. Add your income and recurring expenses once. Monthly uses their schedules and due dates to work out your budget. FIXED COSTS WITHOUT THE MATH Rent every month, insurance once a year: Monthly includes each payment in the budget month it falls in. You can plan for one-time income and expenses, too. YOUR BUDGET, YOUR SCHEDULE Choose when your budget month starts, whether that’s payday or another date that suits you. Roll your remaining budget into the next month if you want to, and make adjustments when needed. HOUSEHOLDS & ACCOUNTS Manage separate households and assign income and expenses to accounts. See the budget for each account as well as your household total. REMINDERS ON YOUR TERMS Set a reminder for an individual expense. You choose the day and time, and Monthly sends you a notification. CATEGORIES & INSIGHTS Group expenses into categories such as housing, transportation, or leisure, with colors and icons of your choice. See how your income, expenses, and budget change over time. WIDGETS & QUICK ACCESS Check your monthly budget and upcoming expenses from your Home Screen, without opening Monthly. The Control opens the new-expense form straight from Control Center. CSV EXPORT Export your income and expenses as a CSV file to review them in a spreadsheet or use them elsewhere. FREE & PRIVATE No ads, tracking, subscription fees, or sign-up. Monthly stores your entries locally on your device, with no cloud syncing. Plan your month knowing what’s left for you.
Left
This app simplifies daily budgeting by focusing on a single number: what's left to spend after setting aside essential bills. It offers a minimalist approach to personal finance, ideal for those overwhelmed by complex budgeting tools.
- Single daily spending number
- Envelope for big bills
- Customizable spending periods
- Minimalist interface
- No bank syncing
- No categories
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One number tells you what's left to spend today. One envelope holds the big bills — rent, subs, loans. That's it. — — — Left. is a daily budget tracker for people who tried YNAB and gave up, tried spreadsheets and got bored on day three, tried mental math and lost track on day one. It works on a single, honest idea: pour everything you have into a period, set aside the big bills into an envelope, and what remains is yours to spend, divided by days. One screen. One number. No charts. No categories. No streaks, no badges, no nudges. Nothing to maintain. When you need to dip into the reserve — hold the envelope. The envelope breaks open. You take what you need. It seals back. — — — How it works: 01 Pick a period — a month, a week, three days, a trip. 02 Pour in the amount — everything you have for that period. 03 Set the envelope aside — the big bills that have to wait. 04 See what's left — one number on the home screen, every day. — — — What's not in here: — No syncing with banks. — No machine learning categorisation. — No social feed of how friends spend. — No subscription, no upsell, no premium tier. What is in here: — A blank page that opens on a number. — A reserve sealed in an envelope, opened with a long press. — A ledger that remembers every tap. — One hand. One thumb. One number a day. — — — Left. by Koodalabs
Screenshots
Verdict
The clearest difference is rating: Left at 5.0 against Monthly's 4.6. Left also leads on iOS requirement (18.0 vs 26.1). Monthly's advantage is ratings volume (44 vs 1) and update cadence (every 5 days vs every 2 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Left holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Monthly has 44 ratings behind it against 1, so its average is the more settled of the two.
Monthly ships an update every 5 days, Left every 2 weeks. The most recent releases landed on October 31, 2026 and October 10, 2026 respectively.
| Parameter | Monthly | Left |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (44 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 44 — better | 1 |
| Update frequency | Every 5 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 26.1 | 18.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Arno Richter | Koodalabs LLC |
Customer experience
Monthly
Left
In-app purchases
Monthly
No in-app purchases
Left
No in-app purchases









