Comparison

LensBook vs Expense Tracker

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

Head to head
About

LensBook

Features
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LensBook helps you track travel and everyday expenses from photos, voice, shared images, and quick manual entries. Take a photo of a receipt, menu, or price tag, or send a receipt screenshot from another app. LensBook helps turn it into an expense record by finding amounts, recognizing currencies, and letting you review, correct, or mark the amount yourself. You stay in control before anything is saved. LensBook is designed for travel, daily budgets, and any situation where expenses come in different currencies. Projects keep each trip or budget separate, and LensBook can automatically activate the project that matches today's date. On the Home screen, travel projects show trip progress, remaining budget, and daily budget pace so you can see how your trip is going at a glance. Need to add an expense without a receipt? Use voice input and say a simple sentence such as "Coffee 4 dollars 50 at Starbucks" or "Starbucks 4500 won." You can also use Quick Add when you just want to type the amount yourself. When a trip is over, LensBook can help you look back with statistics, category summaries, CSV export, and shareable recap cards. Your records are stored locally on your device, with no mandatory sign-up or cloud sync. Key Features * Camera-based expense capture for receipts, menus, and price tags * Automatic amount and currency detection with clear manual review * Mark the correct amount by circling or underlining it * Voice expense input for English, Korean, Japanese, French, and Spanish * Quick Add for fast manual expense entry * Import receipt screenshots or images from the system share sheet * Project-based tracking for trips, monthly budgets, and personal use * Automatic project selection based on date * Trip progress, remaining budget, and daily budget pace on Home * Multi-currency records with exchange-rate based summaries where rates are available * Project budget progress bars * Project CSV export for settlement or record keeping * Share saved expense cards, daily summaries, and trip recap cards * Local-first data storage, backup, and restore * Clear statistics, category summaries, and expense history * No mandatory sign-up or cloud sync LensBook is built to reduce friction, not add complexity. Capture, review, save, and keep your spending organized.

About

Expense Tracker

This minimalist bookkeeping app offers effortless transaction recording, calendar overviews, and professional analytics. Manage multiple accounts, currencies, and data with import/export and cloud sync features. Enjoy privacy-first design and quick entry shortcuts.

Highlights
  • Effortless bookkeeping
  • Calendar overview of transactions
  • Professional spending analytics
  • Multi-account management
  • Multi-currency support
  • Import/export data
  • Cloud sync across devices
  • Scheduled recurring transactions
Features
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Expense Tracker: Koala is a minimalist bookkeeping app that keeps every transaction crystal clear. โ–ถ EFFORTLESS BOOKKEEPING Record income, expenses, and transfers in seconds. Parent-child categories and tags keep everything organized. โ–ถ CALENDAR OVERVIEW View daily income and expenses on a monthly calendar. Tap any date to see detailed transactions. โ–ถ PROFESSIONAL ANALYTICS Pie charts, bar charts, and trend graphs analyze your spending by category, tag, or account. โ–ถ MULTI-ACCOUNT MANAGEMENT Support for cash, bank cards, credit cards, e-wallets, and more โ€” with balance tracking and credit card billing cycles. โ–ถ MULTI-CURRENCY & EXCHANGE RATES Built-in global currency support with real-time exchange rate updates, so international spending is always accurately tracked. โ–ถ IMPORT & EXPORT Import from WeChat, Alipay, or CSV templates. Export to CSV/Excel for flexible data portability. โ–ถ CLOUD SYNC Sign in to sync across all your devices in real time. Never lose your data when switching phones. โ–ถ SCHEDULED BOOKKEEPING Set recurring rules for rent, salary, and more โ€” transactions are created automatically. โ–ถ SHORTCUTS QUICK ENTRY Add Koala's built-in Shortcut with one tap. Trigger it right from WeChat, Alipay, or any payment page to instantly pop up the entry window โ€” log it and jump straight back, no app-switching required. โ–ถ iOS WIDGETS Home screen widgets show today's or this month's totals at a glance. โ–ถ 5 LANGUAGES Supports Simplified Chinese, Traditional Chinese, English, Japanese, and Korean. โ–ถ PRIVACY FIRST Apple Sign-In authentication. Local-first data storage. Your financial data stays private. โ–ถ Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

LensBook4 screens
Expense Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: LensBook at none against Expense Tracker's 3. LensBook also leads on iOS requirement (15.5 vs 17.0). Expense Tracker's advantage is ads (none vs shown) and update cadence (every 5 days vs every 2 weeks). On price 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. Expense Tracker sells 3 in-app purchases, starting at $0.99 per month. LensBook asks for nothing beyond the download.

UpkeepUpdate frequency

LensBook ships an update every 2 weeks, Expense Tracker every 5 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard4 real differences ยท 4 level
LensBook versus Expense Tracker: the parameters behind the verdict, then further details
ParameterLensBookExpense Tracker
PriceFreeFree
Positive reviewsโ€”50.0% of reviews
Update frequencyEvery 2 weeksEvery 5 days โ€” better
AdsYesNo โ€” better
In-app purchasesNo โ€” betterYes
Monetizationโ€”Freemium
DevicesiPhone, iPod โ€” betteriPhone
Requires iOS15.5 โ€” better17.0
Further details โ€” not scored
Size82 MB102 MB
Age rating4+4+
DeveloperHyunWoo Shimๅท ้˜ฎ

In-app purchases

None

LensBook

No in-app purchases

3 purchases

Expense Tracker

Subscriptions2
  • Koala Membership (Monthly)$0.991 Month
  • Koala Membership (Yearly)$6.991 Year
One-time1
  • Koala Pro Lifetime$19.99

Questions

Is LensBook free?
LensBook is free to download, with no in-app purchases.
Is Expense Tracker free?
Expense Tracker is free to download, with in-app purchases available.
Do LensBook or Expense Tracker have ads?
LensBook shows ads; Expense Tracker does not.
Which is updated more often, LensBook or Expense Tracker?
LensBook ships an update every 2 weeks, and Expense Tracker every 5 days. Most recently, LensBook was updated on October 31, 2026 and Expense Tracker on November 5, 2026.

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