# ThreeNote vs Aiko Echo

The clearest difference is in-app purchases: ThreeNote at none against Aiko Echo's 2. ThreeNote also leads on update cadence (daily vs monthly) and iOS requirement (16.6 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Aiko Echo sells 2 in-app purchases, starting at $6.69 per 7 days. ThreeNote asks for nothing beyond the download.

ThreeNote ships an update daily, Aiko Echo monthly. The most recent releases landed on October 18, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | ThreeNote | Aiko Echo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/aiko-echo-ai-keyboard/id6773069730/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Monthly |
| Monetization | — | Freemium |
| Size | 1 MB | 32 MB |
| Requires iOS | **16.6** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Jouni Erola](https://appshunter.io/developer/295758397) | [YUJEN CHEN](https://appshunter.io/developer/6773069732) |

## What reviewers say

### ThreeNote

[App page](https://appshunter.io/ios/app/threenote/id6736774101)

**Features:** macOS Compatibility

**In-app purchases:** none


### Aiko Echo

[App page](https://appshunter.io/ios/app/aiko-echo-ai-keyboard/id6773069730)

This AI-powered keyboard assistant helps you craft better messages. It offers suggestions for replies, rephrasing, and tone adjustment directly within your conversations, making communication smoother and more natural.

**Highlights:** AI-powered message replies, Text rephrasing for clarity, Tone adjustment, Personalized reply suggestions, Works across messaging apps, Privacy-focused design

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aiko Pro | $6.69 | per 7 days |
| Aiko Pro Annual | $79.99 | per year |


## Frequently asked questions

### Is ThreeNote free?

ThreeNote is free to download, with no in-app purchases.

### Is Aiko Echo free?

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

### Do ThreeNote or Aiko Echo have ads?

Neither ThreeNote nor Aiko Echo shows ads.

### Which is updated more often, ThreeNote or Aiko Echo?

ThreeNote ships an update daily, and Aiko Echo monthly. Most recently, ThreeNote was updated on October 18, 2026 and Aiko Echo on October 9, 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.*