# TestApp.io vs Programmer Calculator

The clearest difference is review sentiment: TestApp.io at 91% against Programmer Calculator's 42%. TestApp.io also leads on in-app purchases (none vs 3) and rating (5.0 vs 4.6). Programmer Calculator's advantage is ratings volume (32 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Programmer Calculator sells 3 one-off in-app purchases. TestApp.io asks for nothing beyond the download.

TestApp.io holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Programmer Calculator has 32 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 91% of TestApp.io's written reviews are positive against 42% of Programmer Calculator's.

TestApp.io ships an update every 3 weeks, Programmer Calculator fortnightly. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | TestApp.io | Programmer Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/testappio/id1518972541/reviews)** | [4.6 (32 ratings)](https://appshunter.io/ios/app/programmer-calculator-dev/id1624892520/reviews) |
| Number of ratings | 1 | **32** |
| Positive reviews | **90.9% of reviews** | 42.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 63 MB | 5 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TestApp.io FZ LLC](https://appshunter.io/developer/1518972543) | [永超 侯](https://appshunter.io/developer/906391544) |

## What reviewers say

### TestApp.io

[App page](https://appshunter.io/ios/app/testappio/id1518972541)

This app facilitates easy sharing of mobile applications for testing and feedback. Testers receive notifications for new releases, while developers can manage app versions and team members through a dedicated portal.

**Highlights:** App sharing for testing, Feedback collection, Release management, Tester notifications, Member management

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

**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 TestApp.io free?

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

### Is Programmer Calculator free?

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

### Which has better reviews, TestApp.io or Programmer Calculator?

TestApp.io is rated higher. TestApp.io averages 5.0 out of 5 from 1 ratings, while Programmer Calculator averages 4.6 from 32 ratings.

### Do TestApp.io or Programmer Calculator have ads?

Neither TestApp.io nor Programmer Calculator shows ads.

### Which is updated more often, TestApp.io or Programmer Calculator?

TestApp.io ships an update every 3 weeks, and Programmer Calculator fortnightly. Most recently, TestApp.io was updated on October 8, 2026 and Programmer Calculator on October 15, 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.*