Comparison

Pennylog vs Obolos

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Pennylog

Log daily expenses in any currency with this private tracker. It offers detailed statistics, custom budgets, and multi-currency support for trips and projects. Your financial data stays on your device, with no bank logins or ads.

Highlights
  • Multi-currency expense logging
  • Trip and project-specific budgets
  • Customizable budgeting options
  • Detailed spending statistics
  • Weekly and monthly recaps
  • Gentle spending reminders
  • On-device data storage
Features
Read full description

The more you log, the more your money makes sense. Pennylog is a daily expense tracker for people whose lives span more than one currency. Log what you spend in a few seconds, in any currency, and watch it build โ€” over weeks and months โ€” into a clear picture of where your money actually goes. No bank logins, no ads, no sign-up. Just you and your records. โ–  ANY CURRENCY, LOCKED IN Dollars, euros, yen, won โ€” log spending in any currency. Each entry is saved at that day's exchange rate, so your past totals stay accurate even when rates move later. Add a secondary currency to see every amount in your home currency at a glance. โ–  TRIPS & PROJECTS, EACH IN ITS OWN CURRENCY Group a vacation, a move, or any big plan into its own project with its own budget โ€” and give each one its own currency. A Tokyo trip in yen, a Paris trip in euros, each locked at the day's rate. Project spending stays separate from your everyday totals, so a trip to Tokyo never makes your normal month look off. โ–  BUDGETS THAT FIT YOU Set one overall monthly budget, per-category limits, or both. As you log, see exactly how much is left โ€” calm, simple progress, never a scolding. โ–  STATISTICS THAT GET RICHER A category donut, monthly trends, and a per-category detail you can scroll back through month by month. View your days as a list or on a calendar. Long-press a category to mute it for a moment and see the rest. The longer you keep it, the more it shows. โ–  WEEKLY & MONTHLY RECAP See this week against last: your biggest expense, daily average, no-spend days, and which categories went up or down. Gentle awareness, not guilt. โ–  GENTLE REMINDERS Optional notifications nudge you to jot down today's spending and keep the habit going โ€” never noisy, never negative. โ–  STAYS ON YOUR PHONE No accounts. No sign-up. No bank logins. No cloud. Your financial data never leaves your device โ€” and there's no server for it to leave to. Back up or export your data anytime, on your terms. โ–  FOUR LANGUAGES English, Korean, Spanish, and French โ€” across the whole app. โ–  MORE โ€ข Cash counts too โ€” the spending bank-sync apps quietly miss. โ€ข Custom categories and accounts (cards, bank, cash). โ€ข Completely free โ€” no ads, no in-app purchases, no premium tier. โ–  MADE FOR Expats, students, remote workers, travelers โ€” anyone living or moving between currencies who wants one simple, private place to record daily spending. A line a day is all it takes. The longer you keep it, the better it gets.

About

Obolos

Manage your finances across multiple currencies with this expense tracker. It offers a unified view of spending, income, and transfers, with features for planned payments, savings goals, and trip budgeting. Ideal for expats, freelancers, and travelers dealing with international finances.

Highlights
  • Accounts in any currency
  • Unified spending timeline
  • Currency transfer tracking
  • Planned payment management
  • Savings goal accounts
  • Trip-specific budgeting
  • Apple Pay automation
Features
Read full description

Obolos is an expense tracker that lives on your iPhone. Your records are kept on the phone itself, with a copy in your own iCloud, so the app opens instantly and works offline โ€” on a plane, abroad, anywhere without signal. LOG SPENDING IN SECONDS Four ways in, all a tap away: โ€ข Keypad โ€” with a calculator built in, so you can add up a bill as you type. โ€ข Receipt โ€” point the camera and your phone reads the total, on the device. (Premium โ€” every account gets three free scans.) โ€ข Text & voice โ€” type or say "coffee 4.50, taxi 12 and groceries 38.20", check the three expenses, add them in one go. (Smart mode, Premium โ€” every account gets five free tries.) โ€ข Apple Pay โ€” a one-time Shortcuts automation logs each card payment as you pay, to the right account, and asks for the category. DROP IN A STATEMENT Upload a bank statement as PDF, CSV or XLSX. Obolos compares it with what you have already logged and adds only what is missing โ€” no duplicates and no bank login. (Premium โ€” your first statement is free.) SEE WHERE YOUR MONEY GOES Spending by category and by day, your balance over time with upcoming payments ahead, and Insights that tell you whether this month is a normal one. Week and month views for this month and last are free; the year view, older months, forecasts and Insights are Premium. EVERY CURRENCY, ONE TOTAL Accounts in any of 159 currencies, each kept in its own. Totals convert to your main currency at daily rates, and a transfer between currencies is one operation at the rate you actually got. WHAT THE TRIP REALLY COST Set the dates and the spending inside them joins the trip: the total in the local currency and in yours, per day and by category. AND THE REST โ€ข Planned payments โ€” rent, subscriptions, salary โ€” with reminders that come from the phone itself, even offline. โ€ข Savings goals โ€” each goal is a real account you transfer money into. โ€ข Balance adjustment โ€” enter what the account really holds and Obolos records the difference. โ€ข Monthly category budgets with alerts (Premium). โ€ข CSV and JSON export (Premium). โ€ข Home-screen widgets, App Lock with Face ID, and light or dark mode that follows your iPhone. FREE Unlimited accounts, operations, transfers, goals and trips. Keypad with calculator, three receipt scans to try, and Apple Pay logging. Planned payments and reminders. Statistics for this month and last. No ads. PREMIUM Unlimited receipt scanning. Smart mode: a sentence, typed or spoken, becomes several expenses, and receipts your phone can't read are read for you. Bank statement matching. Category budgets. Insights, the year view, forecasts and your full history. Export. Monthly or yearly subscription, with a free trial for new subscribers. YOUR DATA Your ledger lives on your iPhone and in your own iCloud. Obolos never connects to your bank and never asks for bank credentials. Sign in with Apple. When you use Smart mode or statement matching, the text, photo or file you send is read once by our server and an AI provider and is not used for anything else. No ads, no data sales. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://evless.github.io/obolos/privacy

Screenshots

Pennylog4 screens
Obolos4 screens

Verdict

The call

The clearest difference is in-app purchases: Pennylog at none against Obolos's 2. Pennylog also leads on review sentiment (100% vs 83%) and iOS requirement (15.1 vs 17.0). Obolos's advantage is update cadence (every 2 days vs every 5 days). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Obolos sells 2 in-app purchases, starting at $2.99 per month. Pennylog asks for nothing beyond the download.

UpkeepUpdate frequency

Pennylog ships an update every 5 days, Obolos every 2 days. Both last shipped on October 25, 2026.

Scorecard5 real differences ยท 3 level
Pennylog versus Obolos: the parameters behind the verdict, then further details
ParameterPennylogObolos
PriceFreeFree
Positive reviews100.0% of reviews โ€” better83.3% of reviews
Update frequencyEvery 5 daysEvery 2 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationFree โ€” betterFreemium
DevicesiPhone, iPad, iPod โ€” betteriPhone, Mac
Requires iOS15.1 โ€” better17.0
Further details โ€” not scored
Size40 MB28 MB
Age rating4+4+
DeveloperJaewoo JangEvgenii Grachev

Customer experience

Pennylog

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Obolos

Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

None

Pennylog

No in-app purchases

2 purchases

Obolos

Subscriptions2
  • Premium Monthly7 Days trial$2.991 Month
  • Premium Yearly7 Days trial$17.991 Year

Questions

Is Pennylog free?
Pennylog is free to download, with no in-app purchases.
Is Obolos free?
Obolos is free to download, with in-app purchases available.
Do Pennylog or Obolos have ads?
Neither Pennylog nor Obolos shows ads.
Which is updated more often, Pennylog or Obolos?
Pennylog ships an update every 5 days, and Obolos every 2 days. Most recently, Pennylog was updated on October 25, 2026 and Obolos on October 25, 2026.

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