# Nonogram vs Power On

The clearest difference is review sentiment: Nonogram at 56% against Power On's 0%. Nonogram also leads on rating (4.4 vs 1.0) and ratings volume (293 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Nonogram sells 8 one-off in-app purchases and Power On sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Nonogram holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Nonogram has 293 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 56% of Nonogram's written reviews are positive against 0% of Power On's.

Nonogram ships an update every 3 weeks, Power On every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Nonogram | Power On |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (293 ratings)](https://appshunter.io/ios/app/nonogram-griddler-puzzles/id1448301985/reviews)** | [1.0 (3 ratings)](https://appshunter.io/ios/app/power-on-energy-flow/id1604225740/reviews) |
| Number of ratings | **293** | 3 |
| Positive reviews | **56.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 369 MB | 150 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TapLab](https://appshunter.io/developer/1448301984) | [INFINITY GAMES, LDA](https://appshunter.io/developer/1088875165) |

## What reviewers say

### Nonogram

[App page](https://appshunter.io/ios/app/nonogram-griddler-puzzles/id1448301985)

Engage your logic with picture-based puzzles. Fill in cells based on number clues to reveal hidden images, from simple black and white to vibrant color designs. Enjoy endless challenges and satisfying problem-solving.

**Highlights:** Black and white puzzles, Color puzzles, Multiple difficulty levels, New content regularly, In-game hints, Extra lives system

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Content 7x7 | $1.99 | one-time |
| Content 10x10 | $1.99 | one-time |
| Content 15x15 | $1.99 | one-time |
| Content Big Pictures | $1.99 | one-time |
| Hint 10 | $1.99 | one-time |
| All Content | $2.99 | one-time |
| Hint 100 | $4.99 | one-time |

**What reviewers like**

- 🎨 Excellent color puzzle variety and quality
- 🧩 Well-designed nonogram puzzles with appropriate difficulty
- 🎮 Free-to-play model without mandatory purchases
- 🖼️ Beautiful and cool image designs
- 😌 Relaxing and engaging gameplay

**What reviewers complain about**

- 📺 Excessive and intrusive advertisements
- ❌ Punishing lives system with no error tolerance
- 🎵 Music/sound plays unexpectedly and interrupts other apps
- 📱 Poor mobile controls and responsiveness
- 🔤 Font sizes too small for readability

**Reported bugs**

- App crashes on startup or during gameplay
- Game won't load properly
- Music from phone playlist plays unexpectedly after completing puzzles
- Challenge mode shows update error despite having latest version
- Bottom row of color puzzles not spaced correctly

**Requested features**

- More puzzles and levels (most frequent request)
- Option to disable auto-correct/lives system
- Ability to undo/erase mistakes freely
- Larger grid puzzles
- Auto-cross completed rows feature


### Power On

[App page](https://appshunter.io/ios/app/power-on-energy-flow/id1604225740)

Connect wires to power lamps in this relaxing puzzle game. Solve over 300 unique levels at your own pace, with no time limits. Enjoy a calming experience that can improve concentration and reduce stress.

**Highlights:** Color-based puzzle mechanics, Over 300 original stages, Hint system for difficult levels, Star system for replayability, Customizable game area, Secret messages to discover

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Special Pack 1 | $0.99 | one-time |
| Coin Pack 1 | $1.99 | one-time |
| Special Pack 2 | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Coin Pack 2 | $3.99 | one-time |
| Special Pack 3 | $3.99 | one-time |
| Coin Pack 3 | $9.99 | one-time |


## Frequently asked questions

### Is Nonogram free?

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

### Is Power On free?

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

### Which has better reviews, Nonogram or Power On?

Nonogram is rated higher. Nonogram averages 4.4 out of 5 from 293 ratings, while Power On averages 1.0 from 3 ratings.

### Do Nonogram or Power On have ads?

Both Nonogram and Power On show ads.

### Which is updated more often, Nonogram or Power On?

Nonogram ships an update every 3 weeks, and Power On every 2 months. Most recently, Nonogram was updated on October 23, 2026 and Power On on October 24, 2026.

---

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