# TLC Chemistry Tools vs iCrucible

The clearest difference is in-app purchases: TLC Chemistry Tools at none against iCrucible's 8. TLC Chemistry Tools also leads on update cadence (every 3 weeks vs every 5 months) and iOS requirement (8.0 vs 17.2). On price, ads and device support there is nothing between them.

Both are free to download. iCrucible sells 8 in-app purchases, starting at $2.99 per month. TLC Chemistry Tools asks for nothing beyond the download.

TLC Chemistry Tools ships an update every 3 weeks, iCrucible every 5 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | TLC Chemistry Tools | iCrucible |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/tlc-chemistry-tools/id997180844/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free | — |
| Size | 13 MB | 172 MB |
| Requires iOS | **8.0** | 17.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [PoChu. Hsu](https://appshunter.io/developer/997180843) | [RIMCS LLC](https://appshunter.io/developer/1695388876) |

## What reviewers say

### TLC Chemistry Tools

[App page](https://appshunter.io/ios/app/tlc-chemistry-tools/id997180844)

This app automates the process of recording and calculating Thin Layer Chromatography (TLC) data. It features auto-cropping, sample point detection, and Rf value calculation directly from your device's camera.

**Highlights:** Auto crop TLC images, Auto find sample points, Auto calculate Rf values, Image detection timer, Record and calculate TLC data

**Features:** macOS Compatibility

**In-app purchases:** none


### iCrucible

[App page](https://appshunter.io/ios/app/icrucible/id6468351223)

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $2.99 | per month |
| Premium | $4.99 | per month |
| Standard | $29.99 | per year |
| Premium | $49.99 | per year |
| 500 Flame Gems | $4.99 | one-time |
| 2,500 Flame Gems | $23.99 | one-time |
| 5,000 Flame Gems | $46.99 | one-time |
| 10,000 Flame Gems | $91.90 | one-time |


## Frequently asked questions

### Is TLC Chemistry Tools free?

TLC Chemistry Tools is free to download, with no in-app purchases.

### Is iCrucible free?

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

### Do TLC Chemistry Tools or iCrucible have ads?

Neither TLC Chemistry Tools nor iCrucible shows ads.

### Which is updated more often, TLC Chemistry Tools or iCrucible?

TLC Chemistry Tools ships an update every 3 weeks, and iCrucible every 5 months. Most recently, TLC Chemistry Tools was updated on October 24, 2026 and iCrucible on October 27, 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.*