# LensBook vs Pennylog

The clearest difference is ads: Pennylog at none against LensBook's shown. Pennylog also leads on update cadence (every 5 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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

## The numbers

| Metric | LensBook | Pennylog |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | — | Free |
| Size | 82 MB | 40 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HyunWoo Shim](https://appshunter.io/developer/1822823961) | [Jaewoo Jang](https://appshunter.io/developer/1896501272) |

## What reviewers say

### LensBook

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

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

**In-app purchases:** none


### Pennylog

[App page](https://appshunter.io/ios/app/pennylog-expense-tracker/id6770363404)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is LensBook free?

LensBook is free to download, with no in-app purchases.

### Is Pennylog free?

Pennylog is free to download, with no in-app purchases.

### Do LensBook or Pennylog have ads?

LensBook shows ads; Pennylog does not.

### Which is updated more often, LensBook or Pennylog?

LensBook ships an update every 2 weeks, and Pennylog every 5 days. Most recently, LensBook was updated on October 31, 2026 and Pennylog 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.*