# Simple Weight Tracker vs ThirdVoice

The clearest difference is in-app purchases: Simple Weight Tracker at none against ThirdVoice's 4. ThirdVoice's advantage is update cadence (every 2 weeks vs every 18 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ThirdVoice sells 4 in-app purchases, starting at $11.00 per month. Simple Weight Tracker asks for nothing beyond the download.

Simple Weight Tracker ships an update every 18 months, ThirdVoice every 2 weeks. The most recent releases landed on September 30, 2026 and August 29, 2026 respectively.

## The numbers

| Metric | Simple Weight Tracker | ThirdVoice |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 15 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Michal Kurczak](https://appshunter.io/developer/1708797394) | [Rajdeep Kaur](https://appshunter.io/developer/1881246464) |

## What reviewers say

### Simple Weight Tracker

[App page](https://appshunter.io/ios/app/simple-weight-tracker/id6467555653)

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

**In-app purchases:** none


### ThirdVoice

[App page](https://appshunter.io/ios/app/thirdvoice-stop-overthinking/id6759853970)

This AI companion helps you break free from overthinking by providing a private space to process anxious thoughts and emotional spirals. It aids in reframing worries, building a journal of patterns, and developing new mental pathways for calmer, clearer thinking.

**Highlights:** Reframe anxious thoughts, Talk through relationship stress, Build a memory-backed journal, Use Rewire for in-depth thought work, Develop new mental pathways, Private space for processing

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plus Subscription | $11.00 | per month |
| ThirdVoice Pro Monthly | $19.99 | per month |
| Annual Plus subscription | $107.99 | per year |
| ThirdVoice Pro Annual | $199.99 | per year |


## Frequently asked questions

### Is Simple Weight Tracker free?

Simple Weight Tracker is free to download, with no in-app purchases.

### Is ThirdVoice free?

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

### Do Simple Weight Tracker or ThirdVoice have ads?

Neither Simple Weight Tracker nor ThirdVoice shows ads.

### Which is updated more often, Simple Weight Tracker or ThirdVoice?

Simple Weight Tracker ships an update every 18 months, and ThirdVoice every 2 weeks. Most recently, Simple Weight Tracker was updated on September 30, 2026 and ThirdVoice on August 29, 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.*