# Numerical Solver vs Bluuub

The clearest difference is update cadence: Bluuub at every 9 days against Numerical Solver's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Numerical Solver sells 3 in-app purchases, starting at $2.99 per year and Bluuub sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Numerical Solver ships an update monthly, Bluuub every 9 days. The most recent releases landed on September 18, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Numerical Solver | Bluuub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bluuub/id6758102697/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | — | Free |
| Size | 3 MB | 86 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [i-SmartSolutions](https://appshunter.io/developer/391390898) | [The Ginger Collective Limited](https://appshunter.io/developer/1808152864) |

## What reviewers say

### Numerical Solver

[App page](https://appshunter.io/ios/app/numerical-solver/id6746115479)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Create Charts | $2.99 | per year |
| Calculate Integrals | $2.99 | per year |
| Solve system of algebraic eqns | $4.99 | per year |


### Bluuub

[App page](https://appshunter.io/ios/app/bluuub/id6758102697)

This app bridges the gap between beginner and intermediate language learners by focusing on real conversation practice. It offers personalized feedback and exercises based on individual struggles, helping users move beyond basic interactions to true connection.

**Highlights:** AI conversational partner, Personalized feedback, Dynamic story generation, Managed flashcards, Learn in your mother tongue

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bluuub Pro | $7.99 | per month |
| Bluuub Pro | $79.99 | per year |


## Frequently asked questions

### Is Numerical Solver free?

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

### Is Bluuub free?

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

### Do Numerical Solver or Bluuub have ads?

Neither Numerical Solver nor Bluuub shows ads.

### Which is updated more often, Numerical Solver or Bluuub?

Numerical Solver ships an update monthly, and Bluuub every 9 days. Most recently, Numerical Solver was updated on September 18, 2026 and Bluuub on September 19, 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.*