# High Precision Calc vs iStory

The clearest difference is price: iStory at Free against High Precision Calc's $1.99. High Precision Calc's advantage is update cadence (fortnightly vs every 5 months) and device support (4 vs 1). On ads and in-app purchases there is nothing between them.

iStory is free to download; High Precision Calc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

High Precision Calc ships an update fortnightly, iStory every 5 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | High Precision Calc | iStory |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.7 (14 ratings)](https://appshunter.io/ios/app/istory-your-device-timeline/id6471365579/reviews)** |
| Number of ratings | — | **14** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | — | Free |
| Size | 37 MB | 12 MB |
| Requires iOS | **13** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [嘉欣 胡](https://appshunter.io/developer/1640395440) | [Timelabs Ltd](https://appshunter.io/developer/1236402723) |

## What reviewers say

### High Precision Calc

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

**In-app purchases:** none


### iStory

[App page](https://appshunter.io/ios/app/istory-your-device-timeline/id6471365579)

Relive your digital history by exploring all the Apple devices you've owned and the memories captured with them. This app organizes your photos by device, provides insightful statistics, and allows you to export visual summaries of your tech journey.

**Highlights:** Device archive of owned Apple products, Photo timeline organized by device, Device and photo statistics, Exportable infographics, Offline use, Privacy-focused data collection

**In-app purchases:** none


## Frequently asked questions

### Is High Precision Calc free?

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

### Is iStory free?

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

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

Neither High Precision Calc nor iStory shows ads.

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

High Precision Calc ships an update fortnightly, and iStory every 5 months. Most recently, High Precision Calc was updated on October 30, 2026 and iStory on October 24, 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.*