# RADD vs Build Up!!

The clearest difference is review sentiment: RADD at 76% against Build Up!!'s 34%. RADD also leads on ads (none vs shown) and rating (4.8 vs 4.5). Build Up!!'s advantage is ratings volume (16K vs 29). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. RADD sells 1 one-off in-app purchase and Build Up!! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

RADD holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Build Up!! has 16K ratings behind it against 29, so its average is the more settled of the two. Written reviews point the same way: 76% of RADD's written reviews are positive against 34% of Build Up!!'s.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RADD | Build Up!! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (29 ratings)](https://appshunter.io/ios/app/radd/id653804398/reviews)** | [4.5 (16K ratings)](https://appshunter.io/ios/app/build-up/id1453032346/reviews) |
| Number of ratings | 29 | **16K** |
| Positive reviews | **76.5% of reviews** | 34.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 12 MB | 266 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Toast - Apps and Software LLC](https://appshunter.io/developer/393055476) | [Voodoo](https://appshunter.io/developer/714804730) |

## What reviewers say

### RADD

[App page](https://appshunter.io/ios/app/radd/id653804398)

Test your reflexes and improve your math skills with this fast-paced addition game. Swipe numbers to merge and add them quickly to increase your score before the timer runs out. Compete with friends and enjoy colorful, addictive gameplay.

**Highlights:** Swipe to merge numbers, Add numbers for score, Timed gameplay, Power-ups for boosts, Compete with friends' scores, Improve addition skills

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extra Points | $0.99 | one-time |


### Build Up!!

[App page](https://appshunter.io/ios/app/build-up/id1453032346)

Construct your tower as tall as possible by strategically placing building nodes. Collect more nodes as you ascend to reach crucial checkpoints and achieve new heights.

**Highlights:** Build structures high, Gather building nodes, Reach checkpoints, Ascend to new heights

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads. | $2.99 | one-time |

**What reviewers like**

- 👍 Simple and fun game
- 🚀 Runs well with no crashes
- 💰 Free to play

**What reviewers complain about**

- 💸 Excessive ads
- 🐛 Impossible or buggy levels
- 🔁 Repetitive gameplay

**Reported bugs**

- Rivet counter malfunction
- Levels regenerating incorrectly
- Tower physics issues

**Requested features**

- More level variety
- Ability to create custom maps
- Removal of perfect triangle requirement


## Frequently asked questions

### Is RADD free?

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

### Is Build Up!! free?

Build Up!! is free to download, with in-app purchases available.

### Which has better reviews, RADD or Build Up!!?

RADD is rated higher. RADD averages 4.8 out of 5 from 29 ratings, while Build Up!! averages 4.5 from 16K ratings.

### Do RADD or Build Up!! have ads?

Build Up!! shows ads; RADD does not.

### Which is updated more often, RADD or Build Up!!?

RADD ships an update fortnightly, and Build Up!! fortnightly. Most recently, RADD was updated on October 23, 2026 and Build Up!! on October 24, 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.*