# PetAI vs Twain

The clearest difference is in-app purchases: Twain at none against PetAI's 9. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PetAI sells 9 in-app purchases, starting at $4.99 per month. Twain asks for nothing beyond the download.

PetAI ships an update every 9 days, Twain weekly. The most recent releases landed on July 21, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | PetAI | Twain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/twain-daily-opinion-poll/id6760269445/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | — | Free |
| Size | 39 MB | 7 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Voice Activity Ltd](https://appshunter.io/developer/1796351875) | [Sergei Vasilev](https://appshunter.io/developer/1741347963) |

## What reviewers say

### PetAI

[App page](https://appshunter.io/ios/app/petai-care-connect-and-create/id6742016840)

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium access | $4.99 | per month |
| Premium access | $39.99 | per year |
| 10 credits (scans) | $1.99 | one-time |
| 5 Generated HD Images | $2.99 | one-time |
| 25 credits (scans) | $3.99 | one-time |
| 10 Generated HD images | $4.99 | one-time |
| 50 credits (scans) | $5.99 | one-time |
| 100 credits (scans) | $11.99 | one-time |
| 200 credits (scans) | $19.99 | one-time |


### Twain

[App page](https://appshunter.io/ios/app/twain-daily-opinion-poll/id6760269445)

Engage with a single daily question, express your opinion, and instantly see how the world and your friends responded. Explore global trends and regional differences through interactive maps and shareable results.

**Highlights:** Daily single question polls, Instant global results, Friend comparison, Interactive answer map, Streak tracking, Shareable result cards, Ad-free experience

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

**In-app purchases:** none


## Frequently asked questions

### Is PetAI free?

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

### Is Twain free?

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

### Do PetAI or Twain have ads?

Neither PetAI nor Twain shows ads.

### Which is updated more often, PetAI or Twain?

PetAI ships an update every 9 days, and Twain weekly. Most recently, PetAI was updated on July 21, 2026 and Twain on September 5, 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.*