# נכון או לא נכון vs Math Solver

The clearest difference is in-app purchases: נכון או לא נכון at none against Math Solver's 1. נכון או לא נכון also leads on ads (none vs shown) and update cadence (every 4 months vs every 14 months). On price and device support there is nothing between them.

Both are free to download. Math Solver sells 1 one-off in-app purchase. נכון או לא נכון asks for nothing beyond the download.

נכון או לא נכון ships an update every 4 months, Math Solver every 14 months. The most recent releases landed on October 10, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | נכון או לא נכון | Math Solver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/math-solver-fast-math-games/id1538166544/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 14 months |
| Monetization | — | Free with in-app purchases |
| Size | 19 MB | 83 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nahoum Huri](https://appshunter.io/developer/794631393) | [冰 冯](https://appshunter.io/developer/1490741402) |

## What reviewers say

### נכון או לא נכון

[App page](https://appshunter.io/ios/app/id1061412016)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Solver

[App page](https://appshunter.io/ios/app/math-solver-fast-math-games/id1538166544)

Engage in a timed math practice game that challenges your calculation speed and accuracy. The game's difficulty progressively increases, offering a brain-training experience through engaging math exercises.

**Highlights:** Timed calculation challenges, Increasing difficulty levels, Mental math practice, Brain exercise, Fast and accurate problem solving

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads for Math Solver | $1.99 | one-time |


## Frequently asked questions

### Is נכון או לא נכון free?

נכון או לא נכון is free to download, with no in-app purchases.

### Is Math Solver free?

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

### Do נכון או לא נכון or Math Solver have ads?

Math Solver shows ads; נכון או לא נכון does not.

### Which is updated more often, נכון או לא נכון or Math Solver?

נכון או לא נכון ships an update every 4 months, and Math Solver every 14 months. Most recently, נכון או לא נכון was updated on October 10, 2026 and Math Solver on September 28, 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.*