# StackLog vs UV Wise

The clearest difference is in-app purchases: StackLog at none against UV Wise's 2. StackLog also leads on update cadence (every 2 days vs every 3 weeks) and iOS requirement (15.1 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. UV Wise sells 2 in-app purchases, starting at $3.99 per month. StackLog asks for nothing beyond the download.

StackLog ships an update every 2 days, UV Wise every 3 weeks. The most recent releases landed on September 15, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | StackLog | UV Wise |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 38 MB | 14 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Yaroslav Henza](https://appshunter.io/developer/1832216660) | [Robbie Malloy](https://appshunter.io/developer/1254862303) |

## What reviewers say

### StackLog

[App page](https://appshunter.io/ios/app/stacklog-supplement-tracker/id6754559530)

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

**In-app purchases:** none


### UV Wise

[App page](https://appshunter.io/ios/app/uv-wise-spf-and-uv-tracker/id6773299243)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UV Wise Pro | $3.99 | per month |
| UV Wise Pro | $14.99 | per year |


## Frequently asked questions

### Is StackLog free?

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

### Is UV Wise free?

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

### Do StackLog or UV Wise have ads?

Neither StackLog nor UV Wise shows ads.

### Which is updated more often, StackLog or UV Wise?

StackLog ships an update every 2 days, and UV Wise every 3 weeks. Most recently, StackLog was updated on September 15, 2026 and UV Wise on September 28, 2026.

---

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