# iobook vs Margin

The clearest difference is update cadence: Margin at weekly against iobook's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. iobook sells 2 in-app purchases, starting at $1.99 per month and Margin sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

iobook ships an update every 3 weeks, Margin weekly. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | iobook | Margin |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 6 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Joonhee Cho](https://appshunter.io/developer/1124471697) | [TAESEONG KIM](https://appshunter.io/developer/1883667129) |

## What reviewers say

### iobook

[App page](https://appshunter.io/ios/app/iobook/id6742841375)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic (Monthly) | $1.99 | per month |
| Basic (Yearly) | $19.99 | per year |


### Margin

[App page](https://appshunter.io/ios/app/margin-daily-budget-tracker/id6760293154)

This app helps you manage your daily spending by automatically calculating your available budget. Track income and expenses, categorize transactions, and view your spending flow to stay on track with your financial goals.

**Highlights:** Automatic daily spending calculation, Income and expense tracking, Category management, Payment method tracking, Budget calendar, In-budget/out-of-budget expense separation, Spending insights

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime unlock | $2.99 | one-time |


## Frequently asked questions

### Is iobook free?

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

### Is Margin free?

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

### Do iobook or Margin have ads?

Neither iobook nor Margin shows ads.

### Which is updated more often, iobook or Margin?

iobook ships an update every 3 weeks, and Margin weekly. Most recently, iobook was updated on September 25, 2026 and Margin on September 17, 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.*