# Confidence Interval Calc vs AE SAFE+

The clearest difference is iOS requirement: Confidence Interval Calc at 13.0 against AE SAFE+'s 15.0. 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.

Confidence Interval Calc ships an update every 6 days, AE SAFE+ weekly. The most recent releases landed on September 9, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Confidence Interval Calc | AE SAFE+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/ae-safe-plus/id6752376160/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | — | Free |
| Size | 30 MB | 152 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Arsosa Network Inc.](https://appshunter.io/developer/1209042440) | [Audio Enhancement](https://appshunter.io/developer/1613167106) |

## What reviewers say

### Confidence Interval Calc

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

**Features:** macOS Compatibility

**In-app purchases:** none


### AE SAFE+

[App page](https://appshunter.io/ios/app/ae-safe-plus/id6752376160)

Provides critical real-time information to emergency responders during incidents, including building floor plans, occupant safety status, and threat locations. It aims to bridge the communication gap and eliminate the "Big Black Hole" of information responders often face.

**Highlights:** Building floor plans and campus maps, Occupant safety status tracking, Threat location identification, Real-time communication for responders, Personnel location within buildings

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

**In-app purchases:** none


## Frequently asked questions

### Is Confidence Interval Calc free?

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

### Is AE SAFE+ free?

AE SAFE+ is free to download, with no in-app purchases.

### Do Confidence Interval Calc or AE SAFE+ have ads?

Neither Confidence Interval Calc nor AE SAFE+ shows ads.

### Which is updated more often, Confidence Interval Calc or AE SAFE+?

Confidence Interval Calc ships an update every 6 days, and AE SAFE+ weekly. Most recently, Confidence Interval Calc was updated on September 9, 2026 and AE SAFE+ on September 14, 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.*