# LensBook vs Expense Tracker

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.

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.

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.

## The numbers

| Metric | LensBook | Expense Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 82 MB | 102 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HyunWoo Shim](https://appshunter.io/developer/1822823961) | [巍 阮](https://appshunter.io/developer/1867833365) |

## What reviewers say

### LensBook

[App page](https://appshunter.io/ios/app/lensbook/id6757357167)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Expense Tracker

[App page](https://appshunter.io/ios/app/expense-tracker-koala/id6757627354)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Koala Membership (Monthly) | $0.99 | per month |
| Koala Membership (Yearly) | $6.99 | per year |
| Koala Pro Lifetime | $19.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*