# THIM vs Sit to Stand

The clearest difference is review sentiment: Sit to Stand at 100% against THIM's 0%. Sit to Stand also leads on update cadence (every 11 days vs every 2 months). THIM's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Sit to Stand sells 1 one-off in-app purchase. THIM asks for nothing beyond the download.

THIM ships an update every 2 months, Sit to Stand every 11 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | THIM | Sit to Stand |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sit-to-stand-longevity-test/id6757300858/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 96 MB | 7 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Re-Time Pty Ltd](https://appshunter.io/developer/637379603) | [SANCHIT AGGARWAL](https://appshunter.io/developer/1865858263) |

## What reviewers say

### THIM

[App page](https://appshunter.io/ios/app/thim-sleep-ring/id1538264675)

This app helps you improve sleep quality through a unique conditioning program developed by a sleep scientist. It tracks sleep stages, offers power naps, and features a smart alarm to wake you from light sleep. Monitor your sleep efficiency with a score used in sleep clinics.

**Highlights:** Sleep conditioning program, Track sleep quality and stages, Accurate 10-minute power naps, Smart alarm for light sleep wake-ups, Sleep efficiency scoring, Community for sleep optimization

**Features:** macOS Compatibility

**In-app purchases:** none


### Sit to Stand

[App page](https://appshunter.io/ios/app/sit-to-stand-longevity-test/id6757300858)

Measure leg strength with a 30-second chair-stand test using motion sensors. Track progress, receive age-based comparisons, and access guided training sessions. Designed for older adults with large text and simple navigation.

**Highlights:** 30-second chair-stand test, Automatic repetition counting, Age and sex reference data comparison, Guided sit-to-stand training sessions, Retest reminders and progress tracking, Large text and simple interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $1.99 | one-time |


## Frequently asked questions

### Is THIM free?

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

### Is Sit to Stand free?

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

### Do THIM or Sit to Stand have ads?

Neither THIM nor Sit to Stand shows ads.

### Which is updated more often, THIM or Sit to Stand?

THIM ships an update every 2 months, and Sit to Stand every 11 days. Most recently, THIM was updated on November 3, 2026 and Sit to Stand on October 31, 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.*