# Atom Calculator vs StorageUnlocked

The clearest difference is price: StorageUnlocked at Free against Atom Calculator's $2.99. Atom Calculator's advantage is iOS requirement (12.0 vs 15.1). On update cadence, ads, in-app purchases and device support there is nothing between them.

StorageUnlocked is free to download; Atom Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Atom Calculator ships an update every 35 months, StorageUnlocked every 23 months. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Atom Calculator | StorageUnlocked |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[3.5 (14 ratings)](https://appshunter.io/ios/app/storageunlocked/id1525635336/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 31.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 35 months | **Every 23 months** |
| Monetization | — | Free |
| Size | 13 MB | 52 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gorasiya Vishal Nanjibhai](https://appshunter.io/developer/1287086933) | [StorageMart](https://appshunter.io/developer/1525635338) |

## What reviewers say

### Atom Calculator

[App page](https://appshunter.io/ios/app/atom-calculator/id1457529377)

**Features:** macOS Compatibility

**In-app purchases:** none


### StorageUnlocked

[App page](https://appshunter.io/ios/app/storageunlocked/id1525635336)

Access your StorageMart facility hands-free by simply driving up to the gate. This app allows you to enter and exit properties, open doors, and view your activity without touching your phone. You can also pay rent, contact the facility, and find nearby locations.

**Highlights:** Hands-free facility entry and exit, Open doors, gates, and elevators, View property activity, Pay StorageMart rent, Contact facility, Search for nearby locations

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Atom Calculator free?

Atom Calculator costs $2.99, with no in-app purchases.

### Is StorageUnlocked free?

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

### Do Atom Calculator or StorageUnlocked have ads?

Neither Atom Calculator nor StorageUnlocked shows ads.

### Which is updated more often, Atom Calculator or StorageUnlocked?

Atom Calculator ships an update every 35 months, and StorageUnlocked every 23 months. Most recently, Atom Calculator was updated on September 30, 2026 and StorageUnlocked on October 12, 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.*