# Touch The Lost Numbers vs Remember 3.1415

The clearest difference is review sentiment: Remember 3.1415 at 100% against Touch The Lost Numbers's 56%. Remember 3.1415 also leads on rating (4.0 vs 3.2) and ads (none vs shown). Touch The Lost Numbers's advantage is in-app purchases (none vs 1) and update cadence (every 12 months vs every 64 months). On price, ratings volume and device support there is nothing between them.

Both are free to download. Remember 3.1415 sells 1 one-off in-app purchase. Touch The Lost Numbers asks for nothing beyond the download.

Remember 3.1415 holds the better App Store score, 4.0 against 3.2. Both are backed by a comparable volume of ratings — 6 and 4 respectively. Written reviews point the same way: 56% of Touch The Lost Numbers's written reviews are positive against 100% of Remember 3.1415's.

Touch The Lost Numbers ships an update every 12 months, Remember 3.1415 every 64 months. The most recent releases landed on August 31, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Touch The Lost Numbers | Remember 3.1415 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (6 ratings)](https://appshunter.io/ios/app/touch-the-lost-numbers/id777615377/reviews) | **[4.0 (4 ratings)](https://appshunter.io/ios/app/remember-31415/id985688958/reviews)** |
| Number of ratings | **6** | 4 |
| Positive reviews | 55.6% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 12 months** | Every 64 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 6 MB | 17 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ayumu Kinoshita](https://appshunter.io/developer/753694887) | [杨军 朱](https://appshunter.io/developer/564474259) |

## What reviewers say

### Touch The Lost Numbers

[App page](https://appshunter.io/ios/app/touch-the-lost-numbers/id777615377)

Test your memory and reflexes by remembering the order of randomly placed numbers and tapping them sequentially. Compete for the best time in two challenging modes. This game aims to activate your brain, improve memory, and enhance peripheral vision.

**Highlights:** Memory training, Reflex enhancement, Two game modes (Normal, Hard), Score tracking, Brain activation, Peripheral vision training

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

**In-app purchases:** none


### Remember 3.1415

[App page](https://appshunter.io/ios/app/remember-31415/id985688958)

Challenge your math and logic skills with this game that tests your ability to recall digits of Pi. Compete against the clock in various timed modes or an endless challenge. AI provides helpful tips to improve your input speed and accuracy.

**Highlights:** Over 1 million digits of Pi, Multiple timed game modes, Endless challenge mode, AI-powered input tips, Game over on time or error

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Pro Version | $0.99 | one-time |


## Frequently asked questions

### Is Touch The Lost Numbers free?

Touch The Lost Numbers is free to download, with no in-app purchases.

### Is Remember 3.1415 free?

Remember 3.1415 is free to download, with in-app purchases available.

### Which has better reviews, Touch The Lost Numbers or Remember 3.1415?

Remember 3.1415 is rated higher. Touch The Lost Numbers averages 3.2 out of 5 from 6 ratings, while Remember 3.1415 averages 4.0 from 4 ratings.

### Do Touch The Lost Numbers or Remember 3.1415 have ads?

Touch The Lost Numbers shows ads; Remember 3.1415 does not.

### Which is updated more often, Touch The Lost Numbers or Remember 3.1415?

Touch The Lost Numbers ships an update every 12 months, and Remember 3.1415 every 64 months. Most recently, Touch The Lost Numbers was updated on August 31, 2026 and Remember 3.1415 on September 23, 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.*