# Samurai Search vs Confidence Interval Calc

The clearest difference is iOS requirement: Confidence Interval Calc at 13.0 against Samurai Search's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Samurai Search ships an update every 5 days, Confidence Interval Calc every 6 days. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Samurai Search | Confidence Interval Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (20 ratings)](https://appshunter.io/ios/app/samurai-search-textpdf-files/id1576636770/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 days |
| Monetization | Free | — |
| Size | 2 MB | 30 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Michael Rourke](https://appshunter.io/developer/634812076) | [Arsosa Network Inc.](https://appshunter.io/developer/1209042440) |

## What reviewers say

### Samurai Search

[App page](https://appshunter.io/ios/app/samurai-search-textpdf-files/id1576636770)

Efficiently search text and PDF files across your device, iCloud, and external storage. Preview matched files or open them in other applications. Supports advanced search options like regular expressions.

**Highlights:** Search text and PDF files, iCloud and external storage support, File preview, Regular expression support, Customizable file types, Saved search locations

**In-app purchases:** none


### Confidence Interval Calc

[App page](https://appshunter.io/ios/app/confidence-interval-calc/id6749201174)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Samurai Search free?

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

### Is Confidence Interval Calc free?

Confidence Interval Calc is free to download, with no in-app purchases.

### Do Samurai Search or Confidence Interval Calc have ads?

Neither Samurai Search nor Confidence Interval Calc shows ads.

### Which is updated more often, Samurai Search or Confidence Interval Calc?

Samurai Search ships an update every 5 days, and Confidence Interval Calc every 6 days. Most recently, Samurai Search was updated on September 10, 2026 and Confidence Interval Calc on September 9, 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.*