# Exponential Idle vs Recall

The clearest difference is in-app purchases: Recall at none against Exponential Idle's 4. Exponential Idle's advantage is iOS requirement (8.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Exponential Idle sells 4 one-off in-app purchases. Recall asks for nothing beyond the download.

Exponential Idle ships an update every 3 weeks, Recall monthly. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Exponential Idle | Recall |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (4.2K ratings)](https://appshunter.io/ios/app/exponential-idle/id1538487382/reviews)** | — |
| Number of ratings | **4.2K** | — |
| Positive reviews | 91.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 95 MB | 29 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gilles-Philippe Paille](https://appshunter.io/developer/1538487384) | [Hasegi Inc.](https://appshunter.io/developer/1755968233) |

## 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


### Recall

[App page](https://appshunter.io/ios/app/recall-reverse-memory/id6774943031)

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

**In-app purchases:** none


## Frequently asked questions

### Is Exponential Idle free?

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

### Is Recall free?

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

### Do Exponential Idle or Recall have ads?

Both Exponential Idle and Recall show ads.

### Which is updated more often, Exponential Idle or Recall?

Exponential Idle ships an update every 3 weeks, and Recall monthly. Most recently, Exponential Idle was updated on November 7, 2026 and Recall on October 31, 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.*