# Number Blast vs Memorize Fast

The clearest difference is update cadence: Memorize Fast at every 9 days against Number Blast's every 39 months. Number Blast's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Number Blast sells 1 one-off in-app purchase and Memorize Fast sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Number Blast ships an update every 39 months, Memorize Fast every 9 days. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Number Blast | Memorize Fast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/memorize-fast-nummnemonic/id6757535911/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 30 MB | 45 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BrainTrain Inc.](https://appshunter.io/developer/584469134) | [Yevhen Murzik](https://appshunter.io/developer/1533055951) |

## What reviewers say

### Number Blast

[App page](https://appshunter.io/ios/app/number-blast-memory-trainer/id1208566898)

This educational game helps children aged 5-7 develop memory, attention, and number recognition skills through engaging number sequence challenges. It features adjustable difficulty, a two-player mode, and progress tracking to foster cognitive abilities for school and life.

**Highlights:** Memory and attention training, Number sequence exercises, Adjustable difficulty levels, Two-player mode, Progress tracking and scoring, Kid-safe, no ads or tracking

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


### Memorize Fast

[App page](https://appshunter.io/ios/app/memorize-fast-nummnemonic/id6757535911)

This app uses mnemonic techniques to help you memorize numbers like phone numbers, PINs, and passcodes. It transforms digits into vivid images for natural recall, requiring minimal daily practice. Unlock advanced features with custom mappings.

**Highlights:** Memorize phone numbers and passcodes, Remember long number sequences, Learn Major and PAO systems, Improve recall accuracy, Daily practice under a minute, Create custom number mappings (Pro)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro Access | $4.99 | one-time |


## Frequently asked questions

### Is Number Blast free?

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

### Is Memorize Fast free?

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

### Do Number Blast or Memorize Fast have ads?

Neither Number Blast nor Memorize Fast shows ads.

### Which is updated more often, Number Blast or Memorize Fast?

Number Blast ships an update every 39 months, and Memorize Fast every 9 days. Most recently, Number Blast was updated on October 8, 2026 and Memorize Fast on October 15, 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.*