# Strontium vs DataLock Managed

The clearest difference is in-app purchases: DataLock Managed at none against Strontium's 2. DataLock Managed also leads on update cadence (every 2 months vs every 5 months). Strontium's advantage is iOS requirement (8.0 vs 11.0). On price, ads and device support there is nothing between them.

Both are free to download. Strontium sells 2 one-off in-app purchases. DataLock Managed asks for nothing beyond the download.

Strontium ships an update every 5 months, DataLock Managed every 2 months. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Strontium | DataLock Managed |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (4 ratings)](https://appshunter.io/ios/app/strontium/id1050123100/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 10.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 132 MB | 31 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [i-FlashDrive Inc.](https://appshunter.io/developer/1387757454) | [CLEVX, LLC](https://appshunter.io/developer/1017877758) |

## What reviewers say

### Strontium

[App page](https://appshunter.io/ios/app/strontium/id1050123100)

Easily manage and transfer photos, music, videos, and files between your Apple devices. Offers secure storage, direct media playback, and backup options for contacts and your camera roll.

**Highlights:** Secure data storage, Direct media playback, Backup and restore contacts, Lightning transfer between devices, Auto file management, Supports numerous file formats

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calendar Backup | Free | one-time |
| Zip/unzip files support | $0.99 | one-time |


### DataLock Managed

[App page](https://appshunter.io/ios/app/datalock-managed/id1093519166)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Strontium free?

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

### Is DataLock Managed free?

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

### Do Strontium or DataLock Managed have ads?

Neither Strontium nor DataLock Managed shows ads.

### Which is updated more often, Strontium or DataLock Managed?

Strontium ships an update every 5 months, and DataLock Managed every 2 months. Most recently, Strontium was updated on October 6, 2026 and DataLock Managed 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.*