# Akerun App vs Simple Fun Calculator

The clearest difference is update cadence: Simple Fun Calculator at every 2 days against Akerun App's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

Akerun App ships an update every 6 weeks, Simple Fun Calculator every 2 days. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Akerun App | Simple Fun Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/akerun-app/id1542946007/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 113 MB | 1 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Photosynth Inc.](https://appshunter.io/developer/950160409) | [tsuboi toshihiro](https://appshunter.io/developer/1838670892) |

## What reviewers say

### Akerun App

[App page](https://appshunter.io/ios/app/akerun-app/id1542946007)

Unlock various spaces like homes, offices, gyms, and schools using your smartphone as a key. Share digital keys with customizable expiration dates and manage access history for enhanced security. Supports various electronic locks and automatic doors.

**Highlights:** Smartphone as a key, IC card integration, Digital key sharing, Access history tracking, Enhanced security features, Remote permission deletion

**In-app purchases:** none


### Simple Fun Calculator

[App page](https://appshunter.io/ios/app/simple-fun-calculator/id6806540320)

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

**In-app purchases:** none


## Frequently asked questions

### Is Akerun App free?

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

### Is Simple Fun Calculator free?

Simple Fun Calculator is free to download, with no in-app purchases.

### Do Akerun App or Simple Fun Calculator have ads?

Neither Akerun App nor Simple Fun Calculator shows ads.

### Which is updated more often, Akerun App or Simple Fun Calculator?

Akerun App ships an update every 6 weeks, and Simple Fun Calculator every 2 days. Most recently, Akerun App was updated on October 17, 2026 and Simple Fun Calculator on October 3, 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.*