# Symptom Log vs Plotsy

The clearest difference is iOS requirement: Symptom Log at 15.0 against Plotsy's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Symptom Log sells 3 in-app purchases, starting at $2.99 per 7 days and Plotsy sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Symptom Log | Plotsy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/symptom-log-symptom-tracker/id6759680681/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Freemium | — |
| Size | 43 MB | 9 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [AlgoSoft Technologies Limited](https://appshunter.io/developer/1799406712) | [Serhii Tykhonenko](https://appshunter.io/developer/1895816215) |

## What reviewers say

### Symptom Log

[App page](https://appshunter.io/ios/app/symptom-log-symptom-tracker/id6759680681)

This app helps individuals manage chronic conditions by logging daily symptoms, moods, and potential triggers. It provides insights into trends and allows for easy sharing of health data with doctors. The app focuses on private, on-device storage for user peace of mind.

**Highlights:** Daily symptom logging, Mood tracking, Trigger identification, Doctor reports (PDF), Data export (CSV), Customizable symptom list, On-device data storage

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $2.99 | per 7 days |
| Annual Plan | $39.99 | per year |
| Lifetime | $89.99 | one-time |


### Plotsy

[App page](https://appshunter.io/ios/app/plotsy-symptom-diary/id6778679232)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Yearly | $29.99 | per year |
| Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Symptom Log free?

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

### Is Plotsy free?

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

### Do Symptom Log or Plotsy have ads?

Neither Symptom Log nor Plotsy shows ads.

### Which is updated more often, Symptom Log or Plotsy?

Symptom Log ships an update every 2 weeks, and Plotsy every 2 weeks. Most recently, Symptom Log was updated on October 24, 2026 and Plotsy on October 25, 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.*