# Pain Tracker vs Stack

The clearest difference is update cadence: Stack at every 3 days against Pain Tracker's every 7 months. Pain Tracker's advantage is device support (4 vs 1) and iOS requirement (15.5 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Pain Tracker sells 10 in-app purchases, starting at $4.95 per month and Stack sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Pain Tracker ships an update every 7 months, Stack every 3 days. The most recent releases landed on November 1, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Pain Tracker | Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (7 ratings)](https://appshunter.io/ios/app/pain-tracker-palina/id6742116238/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 237 MB | 9 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | +4 | 4+ |
| Developer | [Digital Therapeutics](https://appshunter.io/developer/1721663167) | [Henry Hinge](https://appshunter.io/developer/6784458312) |

## What reviewers say

### Pain Tracker

[App page](https://appshunter.io/ios/app/pain-tracker-palina/id6742116238)

This app helps you track and understand your chronic pain by logging pain levels, locations, associated symptoms, and medication effectiveness. It generates detailed reports for healthcare providers and helps uncover patterns and triggers for better pain management.

**Highlights:** Customizable pain scale, Interactive body pain mapping, Pain type differentiation, Associated symptom tracking, Medication effectiveness logging, Pattern and trigger analysis, Doctor-ready reports

**Features:** macOS Compatibility, Siri integration, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| flex pass | $4.95 | per month |
| flex pass | $8.99 | per month |
| weather max | $9.99 | per 3 months |
| smart pass | $19.99 | per year |
| select pass | $34.99 | per year |
| limited discount | $34.99 | per year |
| yearly access | $39.99 | per year |
| your free pass | $39.99 | per year |
| 7-Day Trial | $49.99 | per year |
| carey ai credits | $8.99 | one-time |


### Stack

[App page](https://appshunter.io/ios/app/stack-supplement-tracker/id6784458310)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Pro | $5.99 | per month |
| Stack Pro | $39.99 | per year |


## Frequently asked questions

### Is Pain Tracker free?

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

### Is Stack free?

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

### Do Pain Tracker or Stack have ads?

Neither Pain Tracker nor Stack shows ads.

### Which is updated more often, Pain Tracker or Stack?

Pain Tracker ships an update every 7 months, and Stack every 3 days. Most recently, Pain Tracker was updated on November 1, 2026 and Stack on November 10, 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.*