# Easy Calx vs Otto

The clearest difference is iOS requirement: Otto at 15.6 against Easy Calx's 18.0. On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Easy Calx sells 4 in-app purchases, starting at $3.99 per month and Otto sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Easy Calx ships an update monthly, Otto every 3 weeks. The most recent releases landed on June 4, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Easy Calx | Otto |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (9 ratings)](https://appshunter.io/ios/app/easy-calx/id1178127637/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 9 MB | 25 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | +4 |
| Developer | [Stephan Dowless](https://appshunter.io/developer/1178127636) | [Lucas Siqueira](https://appshunter.io/developer/1531326686) |

## What reviewers say

### Easy Calx

[App page](https://appshunter.io/ios/app/easy-calx/id1178127637)

This app provides a suite of financial calculators to simplify complex money decisions. It helps users make informed choices about home buying, loans, and savings goals with accurate results and practical insights.

**Highlights:** Financial calculator toolkit, Home buying calculations, Loan management, Savings goal planning, Accurate results, Practical insights

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Monthly | $3.99 | per month |
| Yearly | $39.99 | per year |
| Yearly | $39.99 | per year |


### Otto

[App page](https://appshunter.io/ios/app/otto-expense-tracker/id6749043439)

Effortlessly manage personal finances and understand spending patterns. Gain insights into essential, important, and superfluous expenses with clear charts and behavioral classifications. Access helpful content to improve your financial literacy and maintain control.

**Highlights:** Expense recording, Spending habit tracking, Financial insights and charts, Behavioral classification (survivor, balanced, spender), Expense categorization (essential, important, superfluous), Financial literacy content library, Intuitive user experience

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Otto Premium | $0.99 | per month |


## Frequently asked questions

### Is Easy Calx free?

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

### Is Otto free?

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

### Do Easy Calx or Otto have ads?

Neither Easy Calx nor Otto shows ads.

### Which is updated more often, Easy Calx or Otto?

Easy Calx ships an update monthly, and Otto every 3 weeks. Most recently, Easy Calx was updated on June 4, 2026 and Otto on September 6, 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.*