# Akerun App vs SoloWatermark

The clearest difference is in-app purchases: Akerun App at none against SoloWatermark's 2. SoloWatermark's advantage is update cadence (weekly vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SoloWatermark sells 2 in-app purchases, starting at $1.99 per month. Akerun App asks for nothing beyond the download.

Akerun App ships an update every 6 weeks, SoloWatermark weekly. The most recent releases landed on October 21, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Akerun App | SoloWatermark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/akerun-app/id1542946007/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 113 MB | 74 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Photosynth Inc.](https://appshunter.io/developer/950160409) | [JUNICHI HASHIMOTO](https://appshunter.io/developer/1609225560) |

## 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


### SoloWatermark

[App page](https://appshunter.io/ios/app/solowatermark/id6788365371)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Membership | $1.99 | per month |
| Premium Plan 1 Year | $11.99 | per year |


## Frequently asked questions

### Is Akerun App free?

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

### Is SoloWatermark free?

SoloWatermark is free to download, with in-app purchases available.

### Do Akerun App or SoloWatermark have ads?

Neither Akerun App nor SoloWatermark shows ads.

### Which is updated more often, Akerun App or SoloWatermark?

Akerun App ships an update every 6 weeks, and SoloWatermark weekly. Most recently, Akerun App was updated on October 21, 2026 and SoloWatermark on October 4, 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.*