# High Precision Calc vs ExpAppPro

The clearest difference is price: ExpAppPro at Free against High Precision Calc's $1.99. High Precision Calc's advantage is in-app purchases (none vs 1) and update cadence (fortnightly vs every 2 months). On ads and device support there is nothing between them.

ExpAppPro is free to download; High Precision Calc costs $1.99 up front. ExpAppPro sells 1 in-app purchase, starting at $2.99 per month. High Precision Calc asks for nothing beyond the download.

High Precision Calc ships an update fortnightly, ExpAppPro every 2 months. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | High Precision Calc | ExpAppPro |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 37 MB | 5 MB |
| Requires iOS | **13** | 15.5 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [嘉欣 胡](https://appshunter.io/developer/1640395440) | [Oksana Nikita](https://appshunter.io/developer/1723633323) |

## What reviewers say

### High Precision Calc

[App page](https://appshunter.io/ios/app/high-precision-calc/id6461723260)

**In-app purchases:** none


### ExpAppPro

[App page](https://appshunter.io/ios/app/expapppro-export-contacts/id6466124411)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Contact Export | $2.99 | per month |


## Frequently asked questions

### Is High Precision Calc free?

High Precision Calc costs $1.99, with no in-app purchases.

### Is ExpAppPro free?

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

### Do High Precision Calc or ExpAppPro have ads?

Neither High Precision Calc nor ExpAppPro shows ads.

### Which is updated more often, High Precision Calc or ExpAppPro?

High Precision Calc ships an update fortnightly, and ExpAppPro every 2 months. Most recently, High Precision Calc was updated on October 4, 2026 and ExpAppPro on October 5, 2026.

---

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