# Number Run vs Stack the States® 2

The clearest difference is monetization model: Number Run at free against Stack the States® 2's paid. Number Run also leads on update cadence (every 3 months vs every 9 months). Stack the States® 2's advantage is chart position (#15 vs unranked). On price, rating, review sentiment and ratings volume there is nothing between them.

Number Run costs $2.99 and Stack the States® 2 $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.5 for Number Run against 4.5 for Stack the States® 2. Both are backed by a comparable volume of ratings — 1.1K and 1.1K respectively. Written reviews are what separate them: 91% of Number Run's written reviews are positive against 86% of Stack the States® 2's.

Number Run ships an update every 3 months, Stack the States® 2 every 9 months. The most recent releases landed on September 28, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Number Run | Stack the States® 2 |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | [4.5 (1.1K ratings)](https://appshunter.io/ios/app/number-run/id563408572/reviews) | [4.5 (1.1K ratings)](https://appshunter.io/ios/app/stack-the-states-2/id1080767538/reviews) |
| Number of ratings | 1.1K | **1.1K** |
| Positive reviews | **90.9% of reviews** | 86.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#15** |
| Size | 39 MB | 140 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ignacio Schiefelbein](https://appshunter.io/developer/525439275) | [Freecloud Design, Inc.](https://appshunter.io/developer/324355664) |

## What reviewers say

### Number Run

[App page](https://appshunter.io/ios/app/number-run/id563408572)

Embark on an adventure to recover stolen crystals by solving math problems. This game offers engaging practice for all ages, from children learning arithmetic to adults seeking mental stimulation. It features multiple game modes and educational alignment.

**Highlights:** 52 math levels, Addition, subtraction, multiplication, division, Endless Mode, Common Core aligned, Unlockable outfits, Developed by graduate students

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple and straightforward
- 👍 Fun and engaging way to learn math
- 👍 Great for kids and parents
- 👍 Helps improve math skills
- 👍 No ads or distractions

**What reviewers complain about**

- ⏱️ Can be too fast-paced for some users
- 🔧 Could use more customization options

**Reported bugs**

- Occasional crashes or freezes
- Issues with number entry on certain devices

**Requested features**

- Ability to adjust difficulty/speed settings
- Progress tracking for parents/teachers
- More variety of skins/characters


### Stack the States® 2

[App page](https://appshunter.io/ios/app/stack-the-states-2/id1080767538)

**Currently charting:** #15 Top Paid · Education (US App Store)

Learn US geography by stacking animated states to win levels. Collect all 50 states to unlock bonus games and explore an interactive 3D map with detailed information about capitals, cities, and landmarks. Designed for fun and educational play for all ages.

**Highlights:** Interactive 3D map, Learn state capitals, cities, shapes, landmarks, and flags, Collect all 50 states, Unlock bonus games (Map It, Connect 2, Capital Tap), Voice mode for independent play, Hundreds of unique questions, Multiple player profiles

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Number Run free?

Number Run costs $2.99, with no in-app purchases.

### Is Stack the States® 2 free?

Stack the States® 2 costs $2.99, with no in-app purchases.

### Which has better reviews, Number Run or Stack the States® 2?

Number Run and Stack the States® 2 are both rated 4.5 out of 5 on the App Store, from 1.1K and 1.1K ratings respectively.

### Do Number Run or Stack the States® 2 have ads?

Neither Number Run nor Stack the States® 2 shows ads.

### Which is updated more often, Number Run or Stack the States® 2?

Number Run ships an update every 3 months, and Stack the States® 2 every 9 months. Most recently, Number Run was updated on September 28, 2026 and Stack the States® 2 on September 29, 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.*