# High Precision Calc vs Smart

The clearest difference is update cadence: Smart at weekly against High Precision Calc's fortnightly. High Precision Calc's advantage is device support (4 vs 1) and price ($1.99 vs $2.99). On ads and in-app purchases there is nothing between them.

High Precision Calc costs $1.99 and Smart $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

High Precision Calc ships an update fortnightly, Smart weekly. The most recent releases landed on October 21, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | High Precision Calc | Smart |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 37 MB | 8 MB |
| Requires iOS | **13** | 18.5 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [嘉欣 胡](https://appshunter.io/developer/1640395440) | [Waqar Chaudhry](https://appshunter.io/developer/1670203257) |

## What reviewers say

### High Precision Calc

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

**In-app purchases:** none


### Smart

[App page](https://appshunter.io/ios/app/smart-pocket/id6753141793)

**In-app purchases:** none


## Frequently asked questions

### Is High Precision Calc free?

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

### Is Smart free?

Smart costs $2.99, with no in-app purchases.

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

Neither High Precision Calc nor Smart shows ads.

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

High Precision Calc ships an update fortnightly, and Smart weekly. Most recently, High Precision Calc was updated on October 21, 2026 and Smart on October 12, 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.*