# O Story vs Tail Teller

The clearest difference is ads: O Story at none against Tail Teller's shown. O Story also leads on iOS requirement (11.0 vs 14.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

O Story ships an update weekly, Tail Teller every 2 weeks. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | O Story | Tail Teller |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 58 MB | 35 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Alp Can Marangoz](https://appshunter.io/developer/1655568075) | [Burak Can Onder](https://appshunter.io/developer/1760235986) |

## What reviewers say

### O Story

[App page](https://appshunter.io/ios/app/o-story/id6468421992)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tail Teller

[App page](https://appshunter.io/ios/app/tail-teller/id6593660691)

This app uses generative AI to create personalized storybooks for children aged 2-10. Parents can customize characters, themes, and story elements to craft unique adventures that entertain and educate, fostering emotional resilience and social skills.

**Highlights:** Personalized story creation, Generative AI technology, Customizable characters and themes, Emotional resilience building, Social skills development, Growth mindset fostering

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is O Story free?

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

### Is Tail Teller free?

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

### Do O Story or Tail Teller have ads?

Tail Teller shows ads; O Story does not.

### Which is updated more often, O Story or Tail Teller?

O Story ships an update weekly, and Tail Teller every 2 weeks. Most recently, O Story was updated on October 25, 2026 and Tail Teller on October 17, 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.*