# Symptom Tracker vs ONIS

The clearest difference is update cadence: ONIS at every 4 days against Symptom Tracker's every 2 months. Symptom Tracker's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Symptom Tracker sells 2 one-off in-app purchases and ONIS sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Symptom Tracker ships an update every 2 months, ONIS every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Symptom Tracker | ONIS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/symptom-tracker-ripple/id6670346522/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 115 MB | 12 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Tuxedo Lab LLC](https://appshunter.io/developer/1644248680) | [Lee Jacob Yan Chak](https://appshunter.io/developer/1883639729) |

## What reviewers say

### Symptom Tracker

[App page](https://appshunter.io/ios/app/symptom-tracker-ripple/id6670346522)

Log symptoms, lifestyle habits, and moods to understand their impact on your well-being. Visualize trends with clear charts and generate reports for medical appointments. Stay on track with medication reminders for a healthier, more balanced life.

**Highlights:** Symptom logging with custom options, Lifestyle habit tracking (diet, sleep, stress), Mood monitoring and analysis, Medication reminders and adherence tracking, Trend visualization with charts, Customizable reports for medical appointments

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ripple Premium Lifetime | $19.99 | one-time |
| Premium Lifetime | $19.99 | one-time |


### ONIS

[App page](https://appshunter.io/ios/app/onis-track-what-matters/id6785263409)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ONIS Premium Yearly | $2.99 | one-time |
| ONIS Lifetime | $9.99 | one-time |
| ONIS Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is Symptom Tracker free?

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

### Is ONIS free?

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

### Do Symptom Tracker or ONIS have ads?

Neither Symptom Tracker nor ONIS shows ads.

### Which is updated more often, Symptom Tracker or ONIS?

Symptom Tracker ships an update every 2 months, and ONIS every 4 days. Most recently, Symptom Tracker was updated on October 30, 2026 and ONIS on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*