# The Unlimiting App vs Undercurrent

The clearest difference is in-app purchases: The Unlimiting App at none against Undercurrent's 1. The Unlimiting App also leads on iOS requirement (13.0 vs 16.4). Undercurrent's advantage is update cadence (weekly vs every 17 months). On price, ads and device support there is nothing between them.

Both are free to download. Undercurrent sells 1 one-off in-app purchase. The Unlimiting App asks for nothing beyond the download.

The Unlimiting App ships an update every 17 months, Undercurrent weekly. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | The Unlimiting App | Undercurrent |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Weekly** |
| Size | 41 MB | 73 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Tanya Cole-Lesnick Coaching LLC](https://appshunter.io/developer/1750480350) | [Lloyd Rowat](https://appshunter.io/developer/1166734628) |

## What reviewers say

### The Unlimiting App

[App page](https://appshunter.io/ios/app/the-unlimiting-app/id6503947408)

**Features:** macOS Compatibility

**In-app purchases:** none


### Undercurrent

[App page](https://appshunter.io/ios/app/undercurrent-symptom-log/id6759209174)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Undercurrent Health: Pro | $19.99 | one-time |


## Frequently asked questions

### Is The Unlimiting App free?

The Unlimiting App is free to download, with no in-app purchases.

### Is Undercurrent free?

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

### Do The Unlimiting App or Undercurrent have ads?

Neither The Unlimiting App nor Undercurrent shows ads.

### Which is updated more often, The Unlimiting App or Undercurrent?

The Unlimiting App ships an update every 17 months, and Undercurrent weekly. Most recently, The Unlimiting App was updated on October 17, 2026 and Undercurrent on October 24, 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.*