# Math 99 vs Flex Run 3D

The clearest difference is rating: Flex Run 3D at 4.6 against Math 99's 2.3. Flex Run 3D also leads on update cadence (monthly vs every 14 months) and ratings volume (180K vs 3). Math 99's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Flex Run 3D sells 1 one-off in-app purchase. Math 99 asks for nothing beyond the download.

Flex Run 3D holds the better App Store score, 4.6 against 2.3. That said, the two scores are not equally well evidenced: Flex Run 3D has 180K ratings behind it against 3, so its average is the more settled of the two.

Math 99 ships an update every 14 months, Flex Run 3D monthly. The most recent releases landed on September 17, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Math 99 | Flex Run 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/math-99/id1029771640/reviews) | **[4.6 (180K ratings)](https://appshunter.io/ios/app/flex-run-3d/id1580908333/reviews)** |
| Number of ratings | 3 | **180K** |
| Positive reviews | — | 58.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 65 MB | 174 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [ARDEVTEK YAZILIM](https://appshunter.io/developer/447935952) | [Voodoo](https://appshunter.io/developer/714804730) |

## What reviewers say

### Math 99

[App page](https://appshunter.io/ios/app/math-99/id1029771640)

This app offers a fun and progressive way for children and adults to master multiplication tables and other basic math operations. It challenges your brain with timed equations and helps improve reaction speed and mathematical skills. Play offline, anytime, anywhere.

**Highlights:** Learn time tables progressively, Timed math equation challenges, Addition, subtraction, multiplication, division, Randomized number generation, Improves reaction speed, Offline play

**Features:** macOS Compatibility

**In-app purchases:** none


### Flex Run 3D

[App page](https://appshunter.io/ios/app/flex-run-3d/id1580908333)

Guide your character through challenging obstacle courses by sliding your finger to change their pose. Test your reflexes and spatial awareness to fit through narrow gaps and avoid collisions. Enjoy a fun and engaging experience with increasingly difficult levels.

**Highlights:** Slide to move character, Pose to fit obstacles, Challenging levels, Reflex and spatial testing, 3D obstacle courses

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No ads | $2.99 | one-time |

**What reviewers like**

- 🚀 Fun and entertaining
- 👍 Satisfying gameplay
- 💡 Unique movement mechanics

**What reviewers complain about**

- 🔥 Too many ads
- 🤔 Unclear use of gems
- 🐛 Glitches and bugs

**Reported bugs**

- Levels becoming impossible to complete
- Game freezing and crashing
- Inconsistent controls

**Requested features**

- More character customization options
- Ability to choose level difficulty
- Offline mode


## Frequently asked questions

### Is Math 99 free?

Math 99 is free to download, with no in-app purchases.

### Is Flex Run 3D free?

Flex Run 3D is free to download, with in-app purchases available.

### Which has better reviews, Math 99 or Flex Run 3D?

Flex Run 3D is rated higher. Math 99 averages 2.3 out of 5 from 3 ratings, while Flex Run 3D averages 4.6 from 180K ratings.

### Do Math 99 or Flex Run 3D have ads?

Flex Run 3D shows ads; Math 99 does not.

### Which is updated more often, Math 99 or Flex Run 3D?

Math 99 ships an update every 14 months, and Flex Run 3D monthly. Most recently, Math 99 was updated on September 17, 2026 and Flex Run 3D on September 25, 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.*