# Tether vs Symloom

The clearest difference is update cadence: Symloom at every 3 weeks against Tether's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Tether sells 3 in-app purchases, starting at $4.99 per month and Symloom sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Tether ships an update every 2 months, Symloom every 3 weeks. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Tether | Symloom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/symloom-symptom-tracker/id6793261665/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 39 MB | 66 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Zachary Lyons](https://appshunter.io/developer/1802738531) | [AppEcho Labs ,LLC](https://appshunter.io/developer/1701185869) |

## What reviewers say

### Tether

[App page](https://appshunter.io/ios/app/tether-sensitivity-tracker/id6759925709)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tether Premium | $4.99 | per month |
| Tether Premium | $39.99 | per year |
| Tether Premium | $79.99 | one-time |


### Symloom

[App page](https://appshunter.io/ios/app/symloom-symptom-tracker/id6793261665)

This app helps adults with chronic symptoms track their health by logging flares, triggers, medications, and daily context. Review your history with clear insights and prepare for appointments with exportable reports. It prioritizes user privacy and does not use health information for advertising.

**Highlights:** Symptom logging with curated library, Track triggers, meds, mood, sleep, and more, Private health diary timeline, Personalized pattern insights, PDF/CSV health reports, Optional Apple Health integration

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trace Pro Monthly | $7.99 | per month |
| Trace Pro Annual | $39.99 | per year |


## Frequently asked questions

### Is Tether free?

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

### Is Symloom free?

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

### Do Tether or Symloom have ads?

Neither Tether nor Symloom shows ads.

### Which is updated more often, Tether or Symloom?

Tether ships an update every 2 months, and Symloom every 3 weeks. Most recently, Tether was updated on September 24, 2026 and Symloom on September 22, 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.*