# T1 Card vs Base Conversion AI Calculator

The clearest difference is in-app purchases: T1 Card at none against Base Conversion AI Calculator's 2. T1 Card also leads on ads (none vs shown) and update cadence (every 5 days vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Base Conversion AI Calculator sells 2 in-app purchases, starting at $4.99 per 7 days. T1 Card asks for nothing beyond the download.

T1 Card ships an update every 5 days, Base Conversion AI Calculator every 2 months. The most recent releases landed on December 8, 2025 and July 27, 2026 respectively.

## The numbers

| Metric | T1 Card | Base Conversion AI Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 2 months |
| Size | 24 MB | 123 MB |
| Requires iOS | **14.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Magic Lamp Company Limited](https://appshunter.io/developer/1498019893) | [Juan Antonio Veloz Gutierrez](https://appshunter.io/developer/1810351183) |

## What reviewers say

### T1 Card

[App page](https://appshunter.io/ios/app/t1-card/id6502164740)

**Features:** macOS Compatibility

**In-app purchases:** none


### Base Conversion AI Calculator

[App page](https://appshunter.io/ios/app/base-conversion-ai-calculator/id6745121596)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Base Conversion Weekly | $4.99 | per 7 days |
| PRO Base Conversion Yearly | $24.99 | per year |


## Frequently asked questions

### Is T1 Card free?

T1 Card is free to download, with no in-app purchases.

### Is Base Conversion AI Calculator free?

Base Conversion AI Calculator is free to download, with in-app purchases available.

### Do T1 Card or Base Conversion AI Calculator have ads?

Base Conversion AI Calculator shows ads; T1 Card does not.

### Which is updated more often, T1 Card or Base Conversion AI Calculator?

T1 Card ships an update every 5 days, and Base Conversion AI Calculator every 2 months. Most recently, T1 Card was updated on December 8, 2025 and Base Conversion AI Calculator on July 27, 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.*