# Truly Simple Symptom Log vs Pebble

The clearest difference is iOS requirement: Pebble at 15.1 against Truly Simple Symptom Log's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Truly Simple Symptom Log sells 1 one-off in-app purchase and Pebble sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Truly Simple Symptom Log ships an update every 3 weeks, Pebble every 4 weeks. The most recent releases landed on September 7, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Truly Simple Symptom Log | Pebble |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pebble-symptom-tracker/id6772501410/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | — | Freemium |
| Size | 1 MB | 133 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Colin Wright](https://appshunter.io/developer/1814828139) | [JONATHAN DOUGLAS LAI](https://appshunter.io/developer/1850818875) |

## What reviewers say

### Truly Simple Symptom Log

[App page](https://appshunter.io/ios/app/truly-simple-symptom-log/id6766123526)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $4.99 | one-time |


### Pebble

[App page](https://appshunter.io/ios/app/pebble-symptom-tracker/id6772501410)

This app offers a simple, offline health diary for tracking daily symptoms like pain, mood, and energy. It generates a concise, one-page summary for doctor appointments, focusing on clarity over complexity. Designed for individuals managing chronic conditions, it prioritizes ease of use and data privacy.

**Highlights:** Daily symptom logging (mood, pain, energy), Customizable symptom list, Pain location mapping, Medication tracking, One-page doctor brief generation, Offline data storage, Optional Apple Health integration

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Annual | $29.99 | per year |


## Frequently asked questions

### Is Truly Simple Symptom Log free?

Truly Simple Symptom Log is free to download, with in-app purchases available.

### Is Pebble free?

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

### Do Truly Simple Symptom Log or Pebble have ads?

Neither Truly Simple Symptom Log nor Pebble shows ads.

### Which is updated more often, Truly Simple Symptom Log or Pebble?

Truly Simple Symptom Log ships an update every 3 weeks, and Pebble every 4 weeks. Most recently, Truly Simple Symptom Log was updated on September 7, 2026 and Pebble on September 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.*