# Base Tracking vs Trace

The clearest difference is review sentiment: Base Tracking at 96% against Trace's 50%. Base Tracking also leads on in-app purchases (none vs 5) and ads (none vs shown). Trace's advantage is update cadence (daily vs weekly). On price, ratings volume and device support there is nothing between them.

Both are free to download. Trace sells 5 in-app purchases, starting at $4.99 per 7 days. Base Tracking asks for nothing beyond the download.

Base Tracking holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 23 and 28 respectively. Written reviews point the same way: 96% of Base Tracking's written reviews are positive against 50% of Trace's.

Base Tracking ships an update weekly, Trace daily. The most recent releases landed on August 26, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | Base Tracking | Trace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (23 ratings)](https://appshunter.io/ios/app/base-tracking/id1475274656/reviews)** | [4.6 (28 ratings)](https://appshunter.io/ios/app/trace-microplastics/id6740707486/reviews) |
| Number of ratings | 23 | **28** |
| Positive reviews | **96.2% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Daily** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 146 MB | 84 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Criystal Inc.](https://appshunter.io/developer/1475274535) | [Control. Alt. Delete. LLC](https://appshunter.io/developer/1762687184) |

## What reviewers say

### Base Tracking

[App page](https://appshunter.io/ios/app/base-tracking/id1475274656)

This app helps you understand your body by providing access to lab tests and personalized meal plans based on your results. It also features a grocery marketplace and a food logger to track your intake and optimize your nutrition for better health.

**Highlights:** Access lab tests for symptom analysis, Personalized daily meal plans, Weekly grocery marketplace, Food and symptom tracking, Expert tips and educational content

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Trace

[App page](https://appshunter.io/ios/app/trace-microplastics/id6740707486)

Understand your exposure to microplastics with a personalized assessment and science-backed recommendations. Learn about sources, track your progress, and make informed choices for a healthier life and a cleaner environment.

**Highlights:** Personalized microplastic exposure score, Customized reduction recommendations, Local tap water quality reports, Progress tracking over time, Educational content on microplastics, Actionable insights for daily life

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| premium weekly | $4.99 | per 7 days |
| premium weekly with trial | $4.99 | per 7 days |
| Subscription to Trace | $9.99 | per year |
| Trace Premium Yearly | $29.99 | per year |
| premium yearly | $29.99 | per year |


## Frequently asked questions

### Is Base Tracking free?

Base Tracking is free to download, with no in-app purchases.

### Is Trace free?

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

### Which has better reviews, Base Tracking or Trace?

Base Tracking is rated higher. Base Tracking averages 5.0 out of 5 from 23 ratings, while Trace averages 4.6 from 28 ratings.

### Do Base Tracking or Trace have ads?

Trace shows ads; Base Tracking does not.

### Which is updated more often, Base Tracking or Trace?

Base Tracking ships an update weekly, and Trace daily. Most recently, Base Tracking was updated on August 26, 2026 and Trace on August 13, 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.*