# Exponential Idle vs Grimoire Incremental

The clearest difference is update cadence: Exponential Idle at every 3 weeks against Grimoire Incremental's every 3 months. Exponential Idle also leads on ratings volume (4.1K vs 544) and iOS requirement (8.0 vs 15.0). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Exponential Idle against 4.8 for Grimoire Incremental. That said, the two scores are not equally well evidenced: Exponential Idle has 4.1K ratings behind it against 544, so its average is the more settled of the two. Written reviews are what separate them: 92% of Exponential Idle's written reviews are positive against 87% of Grimoire Incremental's.

Exponential Idle ships an update every 3 weeks, Grimoire Incremental every 3 months. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Exponential Idle | Grimoire Incremental |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (4.1K ratings)](https://appshunter.io/ios/app/exponential-idle/id1538487382/reviews)** | [4.8 (544 ratings)](https://appshunter.io/ios/app/grimoire-incremental/id1618966147/reviews) |
| Number of ratings | **4.1K** | 544 |
| Positive reviews | **91.8% of reviews** | 86.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 95 MB | 70 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Gilles-Philippe Paille](https://appshunter.io/developer/1538487384) | [Graham Goldstein](https://appshunter.io/developer/1618966149) |

## 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


### Grimoire Incremental

[App page](https://appshunter.io/ios/app/grimoire-incremental/id1618966147)

Engage in a narrative-driven idle or clicker game where your choices shape society and unlock new mechanics. Progress through runs and prestiges with non-formulaic gameplay and optional ads.

**Highlights:** Non-formulaic gameplay, Branching narrative choices, Idle and clicker mechanics, Unlockable mechanics, Opt-in ads for bonuses, Single in-app purchase option

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisements | $6.99 | one-time |

**What reviewers like**

- 🚀 Great game
- 👍 Simplicity and minimalism
- 👍 Non-intrusive ads
- 👍 Engaging gameplay
- 👍 Rewarding progression

**What reviewers complain about**

- 🐛 Occasional crashes
- 🐛 Slow progress in late game
- 🐛 Imbalanced builds
- 🐛 Lack of content variety

**Reported bugs**

- Progress loss on crash
- Compatibility issues on older devices

**Requested features**

- More content and updates
- Better late-game balance
- Detailed progression tracking
- Story expansion


## Frequently asked questions

### Is Exponential Idle free?

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

### Is Grimoire Incremental free?

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

### Which has better reviews, Exponential Idle or Grimoire Incremental?

Exponential Idle is rated higher. Exponential Idle averages 4.9 out of 5 from 4.1K ratings, while Grimoire Incremental averages 4.8 from 544 ratings.

### Do Exponential Idle or Grimoire Incremental have ads?

Both Exponential Idle and Grimoire Incremental show ads.

### Which is updated more often, Exponential Idle or Grimoire Incremental?

Exponential Idle ships an update every 3 weeks, and Grimoire Incremental every 3 months. Most recently, Exponential Idle was updated on September 22, 2026 and Grimoire Incremental on September 19, 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.*