# SmartStack vs Chirp

The clearest difference is in-app purchases: SmartStack at none against Chirp's 1. Chirp's advantage is device support and iOS requirement (13.0 vs 15.0). On price there is nothing between them.

Both are free to download. Chirp sells 1 in-app purchase, starting at $2.99 per month. SmartStack asks for nothing beyond the download.

## The numbers

| Metric | SmartStack | Chirp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (24 ratings)](https://appshunter.io/ios/app/chirp-ai-for-watch/id6739791292/reviews)** |
| Number of ratings | — | **24** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 5 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 12 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | — | **iPhone, iPod, Apple Watch** |
| Age rating | 17+ | 17+ |
| Developer | [Ender OZTURK](https://appshunter.io/developer/978347372) | [Jonathon Lau](https://appshunter.io/developer/1064957968) |

## What reviewers say

### SmartStack

[App page](https://appshunter.io/ios/app/smartstack/id6475713788)

**In-app purchases:** none


### Chirp

[App page](https://appshunter.io/ios/app/chirp-ai-for-watch/id6739791292)

This app provides a voice-activated AI assistant for your smartwatch, offering quick spoken answers and the ability to perform various tasks. It features natural language understanding, multiple languages, and live web search capabilities, all designed for efficient use on your wrist.

**Highlights:** Voice AI chat, Spoken answers, Natural language understanding, Live web search with sources, Send messages and emails, Navigation and directions, Contextual chat memory

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chirp Monthly | $2.99 | per month |


## Frequently asked questions

### Is SmartStack free?

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

### Is Chirp free?

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

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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.*