# Compound Calculator vs Aino

The clearest difference is price: Aino at Free against Compound Calculator's $0.99. Aino also leads on iOS requirement (15.1 vs 17.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Aino is free to download; Compound Calculator costs $0.99 up front. Compound Calculator sells 3 in-app purchases, starting at $2.99 per month and Aino sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Compound Calculator ships an update every 5 days, Aino weekly. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Compound Calculator | Aino |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aino-markdown-workspace/id6761245785/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | — | Freemium |
| Size | 5 MB | 99 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [乐祥 胡](https://appshunter.io/developer/1572365721) | [宜丙 林](https://appshunter.io/developer/1888184895) |

## What reviewers say

### Compound Calculator

[App page](https://appshunter.io/ios/app/compound-calculator-lite/id6749442265)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Compound Calculator - Pro 30days | $2.99 | per month |
| Compound Calculator - Pro 360days | $14.99 | per year |
| Compound Calculator Pro - lifetime | $19.99 | one-time |


### Aino

[App page](https://appshunter.io/ios/app/aino-markdown-workspace/id6761245785)

A fast, focused Markdown workspace for building a personal knowledge system. Connect ideas and turn notes into a structured, evolving network. Ideal for capturing thoughts, organizing knowledge, or building your second brain with a clean and powerful interface.

**Highlights:** Markdown-first editing, Connected notes, Structured thinking, Focused experience, Personal LifeOS, Link ideas

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aino Pro Monthly | $2.99 | per month |
| Aino Pro Founder Yearly | $19.99 | per year |
| Aino Pro Yearly | $24.99 | per year |


## Frequently asked questions

### Is Compound Calculator free?

Compound Calculator costs $0.99, and also offers in-app purchases.

### Is Aino free?

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

### Do Compound Calculator or Aino have ads?

Neither Compound Calculator nor Aino shows ads.

### Which is updated more often, Compound Calculator or Aino?

Compound Calculator ships an update every 5 days, and Aino weekly. Most recently, Compound Calculator was updated on October 10, 2026 and Aino on October 15, 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.*