# Exponential Idle vs Not Evil Sudoku

The clearest difference is ads: Not Evil Sudoku at none against Exponential Idle's shown. Not Evil Sudoku also leads on update cadence (every 9 days vs every 3 weeks). Exponential Idle's advantage is rating (4.9 vs 4.6) and review sentiment (92% vs 75%). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Exponential Idle sells 4 one-off in-app purchases and Not Evil Sudoku sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Exponential Idle holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 4.1K and 1.1K respectively. Written reviews point the same way: 92% of Exponential Idle's written reviews are positive against 75% of Not Evil Sudoku's.

Exponential Idle ships an update every 3 weeks, Not Evil Sudoku every 9 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | Exponential Idle | Not Evil Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (4.1K ratings)](https://appshunter.io/ios/app/exponential-idle/id1538487382/reviews)** | [4.6 (1.1K ratings)](https://appshunter.io/ios/app/not-evil-sudoku/id1614071642/reviews) |
| Number of ratings | **4.1K** | 1.1K |
| Positive reviews | **91.9% of reviews** | 74.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 95 MB | 23 MB |
| Requires iOS | **8.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gilles-Philippe Paille](https://appshunter.io/developer/1538487384) | [Ashish Selvaraj](https://appshunter.io/developer/1614070948) |

## What reviewers say

### Exponential Idle

[App page](https://appshunter.io/ios/app/exponential-idle/id1538487382)

Engage in a math-inspired incremental game where you strategically stack virtual money through exponential growth. Advance through time, make variable changes, and purchase upgrades to accelerate your earnings and unlock achievements.

**Highlights:** Exponential growth mechanics, Time progression, Change of variables, Buy upgrades, Earn virtual money, Unlock achievements

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donate | $0.99 | one-time |
| Permanent Ad Reward | $1.99 | one-time |
| Donate | $1.99 | one-time |
| Donate | $3.99 | one-time |

**What reviewers like**

- 👍 Great and addicting game
- 👍 Interesting story and educational
- 👍 Numbers go big
- 👍 User-friendly with good descriptions
- 👍 Highly automated progression

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- ⏱️ Slow progression after initial stages
- 🕹️ Difficult mini-games
- 🔒 Harsh time-change penalty
- 🔋 Potential performance issues on some devices

**Reported bugs**

- Puzzle mini-games not loading correctly
- Offline progress issues after updates
- Occasional app crashes

**Requested features**

- More mini-games and challenges
- Better explanations for advanced mechanics
- Adjustable color schemes and visual customization
- Improved offline progress tracking
- Smoother performance and optimization


### Not Evil Sudoku

[App page](https://appshunter.io/ios/app/not-evil-sudoku/id1614071642)

Enjoy a distraction-free Sudoku experience with helpful features like hints and real-time validation. Track your progress, compete globally, and customize the app with themes. Play daily puzzles for free or upgrade for unlimited games and advanced statistics.

**Highlights:** Fully offline play, No ads or distractions, Real-time move validation, Shake for hints, Daily puzzles with leaderboards, Customizable themes and icons, Notes and auto-clear notes

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $4.99 | one-time |

**What reviewers like**

- 🚀 Clean, minimalistic design
- 🔒 No ads or tracking
- 👍 Customizable features
- 👍 Good puzzle difficulty
- 👍 Helpful community

**What reviewers complain about**

- 🐛 Disappearing numbers glitch
- 🐛 App icon doesn't change for dark mode
- ⏱️ Limit of one game per day on free version
- 💰 Paid version considered expensive by some

**Reported bugs**

- Disappearing numbers when closing the app
- Numbers swapping to incorrect spots

**Requested features**

- Add auto-clear notes option without move validation
- Provide more theme color options
- Implement a 'warm' mode similar to other sudoku apps
- Add ability to remove notes after number is placed
- Highlight all instances of a number in the puzzle


## Frequently asked questions

### Is Exponential Idle free?

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

### Is Not Evil Sudoku free?

Not Evil Sudoku is free to download, with in-app purchases available.

### Which has better reviews, Exponential Idle or Not Evil Sudoku?

Exponential Idle is rated higher. Exponential Idle averages 4.9 out of 5 from 4.1K ratings, while Not Evil Sudoku averages 4.6 from 1.1K ratings.

### Do Exponential Idle or Not Evil Sudoku have ads?

Exponential Idle shows ads; Not Evil Sudoku does not.

### Which is updated more often, Exponential Idle or Not Evil Sudoku?

Exponential Idle ships an update every 3 weeks, and Not Evil Sudoku every 9 days. Most recently, Exponential Idle was updated on November 3, 2026 and Not Evil Sudoku on November 3, 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.*