# Chemical Solution Simple vs LingoBuddy

The clearest difference is price: LingoBuddy at Free against Chemical Solution Simple's $2.99. LingoBuddy also leads on update cadence (fortnightly vs every 3 months) and iOS requirement (15.1 vs 17.0). Chemical Solution Simple's advantage is in-app purchases (none vs 2). On rating, review sentiment, ratings volume and ads there is nothing between them.

LingoBuddy is free to download; Chemical Solution Simple costs $2.99 up front. LingoBuddy sells 2 in-app purchases, starting at $5.99 per month. Chemical Solution Simple asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Chemical Solution Simple against 5.0 for LingoBuddy. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Chemical Solution Simple ships an update every 3 months, LingoBuddy fortnightly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Chemical Solution Simple | LingoBuddy |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/chemical-solution-simple/id1080912267/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/lingobuddy-learn/id6754448458/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 111 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Roman Volinsky](https://appshunter.io/developer/977951850) | [Jakob Frederik Ahlberg](https://appshunter.io/developer/1848305793) |

## What reviewers say

### Chemical Solution Simple

[App page](https://appshunter.io/ios/app/chemical-solution-simple/id1080912267)

This app assists in preparing chemical solutions through dissolution and dilution. It calculates moles, molar masses, required solute weights, and starting solution volumes, supporting various concentration units.

**Highlights:** Solution preparation by dissolution, Solution preparation by dilution, Mole calculation, Molar mass analysis, Required solute weight calculation, Starting solution volume calculation, Supports Molar, mM, uM, g/l, mg/l units

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

**In-app purchases:** none


### LingoBuddy

[App page](https://appshunter.io/ios/app/lingobuddy-learn/id6754448458)

Practice speaking a new language through natural voice conversations with an AI companion. Get instant feedback on grammar and pronunciation, track your progress on the CEFR scale, and receive personalized recaps after each session. Supports 15 languages.

**Highlights:** AI voice conversations, Personalized progress tracking, Instant grammar/pronunciation feedback, CEFR proficiency scale, 15 languages available, Debrief and recap after calls

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pen Pals | $5.99 | per month |
| Best Friends | $12.99 | per month |


## Frequently asked questions

### Is Chemical Solution Simple free?

Chemical Solution Simple costs $2.99, with no in-app purchases.

### Is LingoBuddy free?

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

### Which has better reviews, Chemical Solution Simple or LingoBuddy?

Chemical Solution Simple and LingoBuddy are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Chemical Solution Simple or LingoBuddy have ads?

Neither Chemical Solution Simple nor LingoBuddy shows ads.

### Which is updated more often, Chemical Solution Simple or LingoBuddy?

Chemical Solution Simple ships an update every 3 months, and LingoBuddy fortnightly. Most recently, Chemical Solution Simple was updated on November 2, 2026 and LingoBuddy on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*