# Pi Digits vs Spylisa

The clearest difference is review sentiment: Pi Digits at 100% against Spylisa's 23%. Pi Digits also leads on in-app purchases (none vs 6) and ads (none vs shown). Spylisa's advantage is ratings volume (758 vs 1) and update cadence (every 11 days vs monthly). On price there is nothing between them.

Both are free to download. Spylisa sells 6 in-app purchases, starting at $4.99 per 7 days. Pi Digits asks for nothing beyond the download.

Pi Digits holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Spylisa has 758 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Pi Digits's written reviews are positive against 23% of Spylisa's.

Pi Digits ships an update monthly, Spylisa every 11 days. The most recent releases landed on October 4, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Pi Digits | Spylisa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pi-digits-memory-challenge/id6467522843/reviews)** | [4.7 (758 ratings)](https://appshunter.io/ios/app/spylisa/id6759598071/reviews) |
| Number of ratings | 1 | **758** |
| Positive reviews | **100.0% of reviews** | 22.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 188 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Slavka Polanova](https://appshunter.io/developer/1708764553) | [Gregoire Girard](https://appshunter.io/developer/1832992665) |

## What reviewers say

### Pi Digits

[App page](https://appshunter.io/ios/app/pi-digits-memory-challenge/id6467522843)

Test your ability to memorize and recall digits of Pi. Engage in fast-paced challenges to extend your streak and improve your number recall. Ideal for students, puzzle enthusiasts, or anyone seeking a quick mental workout.

**Highlights:** Memorize digits of Pi, Classic typing mode, Timed Blitz mode, Track best streaks, Quick brain workouts, Suitable for all levels

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


### Spylisa

[App page](https://appshunter.io/ios/app/spylisa/id6759598071)

Step into the role of a digital detective and explore a simulated smartphone to uncover hidden truths. Investigate realistic phone environments filled with apps, conversations, and files to piece together the story behind mysterious events. Solve complex cases through logical deduction and immersive storytelling.

**Highlights:** Simulated smartphone investigation, Analyze apps, messages, photos, and files, Piece together fragmented information, Logical deduction and storytelling, Progress through complex cases

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spylisa Premium | $4.99 | per 7 days |
| Spylisa Premium Weekly | $6.99 | per 7 days |
| Spylisa Premium | $17.99 | per year |
| Spylisa Premium Yearly Trial | $19.99 | per year |
| Spylisa Premium Yearly Offer | $19.99 | per year |
| Spylisa Premium Yearly | $34.99 | per year |


## Frequently asked questions

### Is Pi Digits free?

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

### Is Spylisa free?

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

### Which has better reviews, Pi Digits or Spylisa?

Pi Digits is rated higher. Pi Digits averages 5.0 out of 5 from 1 ratings, while Spylisa averages 4.7 from 758 ratings.

### Do Pi Digits or Spylisa have ads?

Spylisa shows ads; Pi Digits does not.

### Which is updated more often, Pi Digits or Spylisa?

Pi Digits ships an update monthly, and Spylisa every 11 days. Most recently, Pi Digits was updated on October 4, 2026 and Spylisa on October 20, 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.*