# Penny vs 卡记Kaji

Penny and 卡记Kaji are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Penny sells 1 one-off in-app purchase and 卡记Kaji sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Penny ships an update every 3 days, 卡记Kaji every 5 days. The most recent releases landed on October 4, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Penny | 卡记Kaji |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/penny-simple-expense-tracker/id6760332242/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 8 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [晓丰 张](https://appshunter.io/developer/1877015444) | [Beijing Ruhong Technology Co., Ltd.](https://appshunter.io/developer/1882230342) |

## What reviewers say

### Penny

[App page](https://appshunter.io/ios/app/penny-simple-expense-tracker/id6760332242)

This minimal expense tracker helps you quickly record income and expenses, organize transactions by category, and review monthly spending trends. Understand where your money goes with clear summaries and budget progress reminders.

**Highlights:** Quickly record income and expenses, Organize transactions by category, Review monthly spending trends, Track budget progress, Category insights, Data export

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Penny Pro | $1.99 | one-time |


### 卡记Kaji

[App page](https://appshunter.io/ios/app/kaji/id6776541780)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kaji Pro | $0.99 | per month |
| Kaji lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Penny free?

Penny is free to download, with in-app purchases available.

### Is 卡记Kaji free?

卡记Kaji is free to download, with in-app purchases available.

### Do Penny or 卡记Kaji have ads?

Neither Penny nor 卡记Kaji shows ads.

### Which is updated more often, Penny or 卡记Kaji?

Penny ships an update every 3 days, and 卡记Kaji every 5 days. Most recently, Penny was updated on October 4, 2026 and 卡记Kaji on September 28, 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.*