# Extra vs Stinger

The clearest difference is update cadence: Extra at every 2 weeks against Stinger's every 4 weeks. Extra also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Extra sells 2 in-app purchases, starting at $9.99 per 7 days and Stinger sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Extra ships an update every 2 weeks, Stinger every 4 weeks. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Extra | Stinger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (11 ratings)](https://appshunter.io/ios/app/extra-power/id6778766085/reviews)** | — |
| Number of ratings | **11** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 weeks |
| Monetization | Freemium | — |
| Size | 14 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DATAWISE ANALYTICS LIMITED](https://appshunter.io/developer/6778766087) | [Faruk Orman](https://appshunter.io/developer/1754575068) |

## What reviewers say

### Extra

[App page](https://appshunter.io/ios/app/extra-power/id6778766085)

Understand your body's energy cycles to enhance productivity and vitality. Track energy levels, analyze activity impacts, and visualize historical data to identify patterns.

**Highlights:** Energy level tracking, Activity impact analytics, Historical data visualization, Pattern and trend identification, Productivity and vitality enhancement

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $9.99 | per 7 days |
| Premium | $199.99 | per year |


### Stinger

[App page](https://appshunter.io/ios/app/stinger-weld-settings-calc/id6800430478)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stinger Pro | $9.99 | one-time |


## Frequently asked questions

### Is Extra free?

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

### Is Stinger free?

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

### Do Extra or Stinger have ads?

Neither Extra nor Stinger shows ads.

### Which is updated more often, Extra or Stinger?

Extra ships an update every 2 weeks, and Stinger every 4 weeks. Most recently, Extra was updated on October 31, 2026 and Stinger on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*