# IDFA vs Programmer Calculator

The clearest difference is price: Programmer Calculator at Free against IDFA's $0.99. Programmer Calculator also leads on update cadence (fortnightly vs every 14 months). IDFA's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Programmer Calculator is free to download; IDFA costs $0.99 up front. Programmer Calculator sells 3 one-off in-app purchases. IDFA asks for nothing beyond the download.

IDFA ships an update every 14 months, Programmer Calculator fortnightly. The most recent releases landed on October 5, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | IDFA | Programmer Calculator |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.6 (32 ratings)](https://appshunter.io/ios/app/programmer-calculator-dev/id1624892520/reviews)** |
| Number of ratings | — | **32** |
| Positive reviews | — | 42.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 16 MB | 5 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Francesco Varotti](https://appshunter.io/developer/1501752853) | [永超 侯](https://appshunter.io/developer/906391544) |

## What reviewers say

### IDFA

[App page](https://appshunter.io/ios/app/idfa/id1609125369)

**In-app purchases:** none


### Programmer Calculator

[App page](https://appshunter.io/ios/app/programmer-calculator-dev/id1624892520)

This tool assists developers with number base conversions and CRC calculations for strings and hex bytes. Additional features are planned for future updates.

**Highlights:** Number base conversion, CRC calculation, String to hex conversion, Hex byte CRC calculation, Developer support tool

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A coke | $0.99 | one-time |
| A cup of coffee | $2.99 | one-time |
| A big meal | $5.99 | one-time |


## Frequently asked questions

### Is IDFA free?

IDFA costs $0.99, with no in-app purchases.

### Is Programmer Calculator free?

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

### Do IDFA or Programmer Calculator have ads?

Neither IDFA nor Programmer Calculator shows ads.

### Which is updated more often, IDFA or Programmer Calculator?

IDFA ships an update every 14 months, and Programmer Calculator fortnightly. Most recently, IDFA was updated on October 5, 2026 and Programmer Calculator on October 19, 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.*