# Undetectable AI vs TogetherCal

The clearest difference is in-app purchases: TogetherCal at none against Undetectable AI's 2. TogetherCal also leads on update cadence (every 4 days vs every 2 months) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Undetectable AI sells 2 in-app purchases, starting at $3.99 per month. TogetherCal asks for nothing beyond the download.

Undetectable AI ships an update every 2 months, TogetherCal every 4 days. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Undetectable AI | TogetherCal |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 109 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HAMZA HARDOULI](https://appshunter.io/developer/1644917930) | [jaehwan jang](https://appshunter.io/developer/6806306768) |

## What reviewers say

### Undetectable AI

[App page](https://appshunter.io/ios/app/undetectable-ai-humanize-text/id6739940766)

Transform AI-generated text into natural, human-like writing that bypasses AI detectors. This tool helps ensure your content remains authentic and undetectable by major detection systems. It also includes a built-in AI scanner to verify your text before submission.

**Highlights:** Bypass AI detection instantly, Humanize any text, Built-in AI detector, One-tap humanization, Advanced rewriting models, Preserve original meaning

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Undetectable AI Premium | $3.99 | per month |
| Undetectable AI Premium | $24.99 | per year |


### TogetherCal

[App page](https://appshunter.io/ios/app/togethercal-shared-calendar/id6806614521)

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

**In-app purchases:** none


## Frequently asked questions

### Is Undetectable AI free?

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

### Is TogetherCal free?

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

### Do Undetectable AI or TogetherCal have ads?

Neither Undetectable AI nor TogetherCal shows ads.

### Which is updated more often, Undetectable AI or TogetherCal?

Undetectable AI ships an update every 2 months, and TogetherCal every 4 days. Most recently, Undetectable AI was updated on October 20, 2026 and TogetherCal on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*