# Knox vs Penni

Knox and Penni 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. Knox sells 3 in-app purchases, starting at $1.99 per 7 days and Penni sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Knox ships an update weekly, Penni every 4 days. The most recent releases landed on October 9, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Knox | Penni |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/penni-expense-tracker/id6789282109/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 12 MB | 59 MB |
| Requires iOS | 18.5 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Jeremiah Siror](https://appshunter.io/developer/1808129154) | [OTHMANE MDIDET](https://appshunter.io/developer/1837087586) |

## What reviewers say

### Knox

[App page](https://appshunter.io/ios/app/knox-expense-tracker/id6751052109)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knox Weekly | $1.99 | per 7 days |
| Knox Monthly | $4.99 | per month |
| Knox Yearly | $29.99 | per year |


### Penni

[App page](https://appshunter.io/ios/app/penni-expense-tracker/id6789282109)

Manage your finances with a calm, beautifully simple approach. Track spending, set gentle budgets, and grow savings without spreadsheets or account creation. Your data stays private on your device and synced via iCloud.

**Highlights:** Private by design, no sign-up required, Track expenses and income, Set gentle budgets, Manage savings goals, Financial health score, Home and Lock Screen widgets, iCloud sync and backup

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| 3 Months | $9.99 | per 3 months |
| Yearly | $29.99 | per year |


## Frequently asked questions

### Is Knox free?

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

### Is Penni free?

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

### Do Knox or Penni have ads?

Neither Knox nor Penni shows ads.

### Which is updated more often, Knox or Penni?

Knox ships an update weekly, and Penni every 4 days. Most recently, Knox was updated on October 9, 2026 and Penni on October 18, 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.*