# Undercurrent vs Symptile

The clearest difference is in-app purchases: Symptile at none against Undercurrent's 1. Symptile also leads on update cadence (daily vs monthly). Undercurrent's advantage is iOS requirement (16.4 vs 26.0). On price, ads and device support there is nothing between them.

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

Undercurrent ships an update monthly, Symptile daily. The most recent releases landed on October 6, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Undercurrent | Symptile |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Size | 76 MB | 4 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Lloyd Rowat](https://appshunter.io/developer/1166734628) | [BRUNO DURAND](https://appshunter.io/developer/1614095585) |

## What reviewers say

### Undercurrent

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

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

**In-app purchases (1)**

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


### Symptile

[App page](https://appshunter.io/ios/app/symptile-symptom-tracker/id6783853981)

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

**In-app purchases:** none


## Frequently asked questions

### Is Undercurrent free?

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

### Is Symptile free?

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

### Do Undercurrent or Symptile have ads?

Neither Undercurrent nor Symptile shows ads.

### Which is updated more often, Undercurrent or Symptile?

Undercurrent ships an update monthly, and Symptile daily. Most recently, Undercurrent was updated on October 6, 2026 and Symptile on September 23, 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.*