# iBrainy Math Number Sequences vs Darkoi Paper

The clearest difference is rating: Darkoi Paper at 5.0 against iBrainy Math Number Sequences's 3.5. Darkoi Paper also leads on in-app purchases (none vs 6). iBrainy Math Number Sequences's advantage is iOS requirement (9.0 vs 12.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. iBrainy Math Number Sequences sells 6 one-off in-app purchases. Darkoi Paper asks for nothing beyond the download.

Darkoi Paper holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

iBrainy Math Number Sequences ships an update every 2 months, Darkoi Paper every 3 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | iBrainy Math Number Sequences | Darkoi Paper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/ibrainy-math-number-sequences/id909307676/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/darkoi-paper/id1596652633/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 33 MB | 36 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [William Portillo](https://appshunter.io/developer/397891789) | [Samuel Moskowitz](https://appshunter.io/developer/1596652635) |

## What reviewers say

### iBrainy Math Number Sequences

[App page](https://appshunter.io/ios/app/ibrainy-math-number-sequences/id909307676)

This educational game helps young learners master number sequences and basic math skills through engaging, self-paced levels. It provides a challenging yet entertaining environment for children to practice and improve their numeracy.

**Highlights:** Self-paced interface for young learners, Hundreds of levels, Ad-free and private environment, Challenging and entertaining gameplay, Focus on number sequences

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Number Sequence Before medium level pack | $0.99 | one-time |
| Number Sequence Before hard level pack | $0.99 | one-time |
| Number Sequence After medium level pack | $0.99 | one-time |
| Number Sequence After hard level pack | $0.99 | one-time |
| Number Sequence Between medium level pack | $0.99 | one-time |
| Number Sequence Between hard level pack | $0.99 | one-time |


### Darkoi Paper

[App page](https://appshunter.io/ios/app/darkoi-paper/id1596652633)

This app facilitates communication between teachers and students by allowing teachers to send PDFs that students can annotate. Real-time monitoring and saving of student work are supported, along with classroom management tools for teachers.

**Highlights:** Send PDFs to students, Student annotation on PDFs, Real-time monitoring and saving, Teacher control features, Classroom presentation tools, Remote learning support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iBrainy Math Number Sequences free?

iBrainy Math Number Sequences is free to download, with in-app purchases available.

### Is Darkoi Paper free?

Darkoi Paper is free to download, with no in-app purchases.

### Which has better reviews, iBrainy Math Number Sequences or Darkoi Paper?

Darkoi Paper is rated higher. iBrainy Math Number Sequences averages 3.5 out of 5 from 2 ratings, while Darkoi Paper averages 5.0 from 1 ratings.

### Do iBrainy Math Number Sequences or Darkoi Paper have ads?

Neither iBrainy Math Number Sequences nor Darkoi Paper shows ads.

### Which is updated more often, iBrainy Math Number Sequences or Darkoi Paper?

iBrainy Math Number Sequences ships an update every 2 months, and Darkoi Paper every 3 months. Most recently, iBrainy Math Number Sequences was updated on October 24, 2026 and Darkoi Paper on October 20, 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.*