# Nonogram 9 vs Perfect Sum

The clearest difference is rating: Perfect Sum at 5.0 against Nonogram 9's 4.5. Perfect Sum also leads on update cadence (every 3 days vs every 12 months). Nonogram 9's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, review sentiment, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Perfect Sum holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Nonogram 9 ships an update every 12 months, Perfect Sum every 3 days. The most recent releases landed on October 6, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Nonogram 9 | Perfect Sum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (6 ratings)](https://appshunter.io/ios/app/nonogram-9/id1452952835/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/perfect-sum/id6477300117/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 3 days** |
| Monetization | **Free** | Ad-supported |
| Size | 56 MB | 139 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Myungil Kim](https://appshunter.io/developer/995113058) | [Benjamin Richy](https://appshunter.io/developer/1636888789) |

## What reviewers say

### Nonogram 9

[App page](https://appshunter.io/ios/app/nonogram-9/id1452952835)

This logic puzzle game challenges your thinking and attention to detail. Solve over 1,000 unique puzzles across various grid sizes to reveal complete pictures. Features include automatic saving and helpful hints.

**Highlights:** Over 1,000 unique puzzles, Multiple grid sizes (10x10, 15x15, 20x20), Automatic game save, Auto X Fill, Hint system

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

**In-app purchases:** none


### Perfect Sum

[App page](https://appshunter.io/ios/app/perfect-sum/id6477300117)

A captivating puzzle game where you strategically place shapes on a numbered board to reach a perfect sum. Unlock new buildings and enjoy stunning visuals and rewarding animations as you progress through increasingly challenging levels.

**Highlights:** Strategic shape placement, Numbered board puzzles, Unlockable buildings, Increasing difficulty levels, Rewarding animations, Stunning visuals

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nonogram 9 free?

Nonogram 9 is free to download, with no in-app purchases.

### Is Perfect Sum free?

Perfect Sum is free to download, with no in-app purchases.

### Which has better reviews, Nonogram 9 or Perfect Sum?

Perfect Sum is rated higher. Nonogram 9 averages 4.5 out of 5 from 6 ratings, while Perfect Sum averages 5.0 from 2 ratings.

### Do Nonogram 9 or Perfect Sum have ads?

Perfect Sum shows ads; Nonogram 9 does not.

### Which is updated more often, Nonogram 9 or Perfect Sum?

Nonogram 9 ships an update every 12 months, and Perfect Sum every 3 days. Most recently, Nonogram 9 was updated on October 6, 2026 and Perfect Sum on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*