# OneSporter vs Viking Strength Calculators

The clearest difference is in-app purchases: Viking Strength Calculators at none against OneSporter's 4. Viking Strength Calculators also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OneSporter sells 4 in-app purchases, starting at $7.99 per month. Viking Strength Calculators asks for nothing beyond the download.

OneSporter ships an update every 2 months, Viking Strength Calculators every 3 weeks. The most recent releases landed on September 21, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | OneSporter | Viking Strength Calculators |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 76 MB | 9 MB |
| Requires iOS | **11.0** | 12.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [L4C SRL](https://appshunter.io/developer/1491719493) | [Federico Dente](https://appshunter.io/developer/1650147566) |

## What reviewers say

### OneSporter

[App page](https://appshunter.io/ios/app/onesporter/id1491719494)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Athlete PRO - Monthly | $7.99 | per month |
| Coach PRO - Monthly | $14.99 | per month |
| Athlete PRO - Annual | $70.99 | per year |
| Coach PRO - Annual | $139.99 | per year |


### Viking Strength Calculators

[App page](https://appshunter.io/ios/app/viking-strength-calculators/id6443867997)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OneSporter free?

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

### Is Viking Strength Calculators free?

Viking Strength Calculators is free to download, with no in-app purchases.

### Do OneSporter or Viking Strength Calculators have ads?

Neither OneSporter nor Viking Strength Calculators shows ads.

### Which is updated more often, OneSporter or Viking Strength Calculators?

OneSporter ships an update every 2 months, and Viking Strength Calculators every 3 weeks. Most recently, OneSporter was updated on September 21, 2026 and Viking Strength Calculators on October 17, 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.*