# Passport To Future vs Tooth Sleuth

The clearest difference is in-app purchases: Passport To Future at none against Tooth Sleuth's 1. Passport To Future also leads on update cadence (every 5 days vs every 3 weeks) and iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Tooth Sleuth sells 1 one-off in-app purchase. Passport To Future asks for nothing beyond the download.

Passport To Future ships an update every 5 days, Tooth Sleuth every 3 weeks. The most recent releases landed on October 1, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Passport To Future | Tooth Sleuth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (20 ratings)](https://appshunter.io/ios/app/tooth-sleuth/id6748571321/reviews)** |
| Number of ratings | — | **20** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | — | Free |
| Size | 41 MB | 14 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Murat Nurkassymov](https://appshunter.io/developer/1742810176) | [Andrew Margarit](https://appshunter.io/developer/1826362583) |

## What reviewers say

### Passport To Future

[App page](https://appshunter.io/ios/app/passport-to-future/id6499224451)

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

**In-app purchases:** none


### Tooth Sleuth

[App page](https://appshunter.io/ios/app/tooth-sleuth/id6748571321)

Master dental identification with this interactive game designed by dental educators. Practice tooth numbering systems and anatomical names through engaging gameplay modes. Ideal for dental students preparing for exams and clinical practice.

**Highlights:** Interactive tooth identification, Clinician Mode (12:00 rotation), Multiple game modes (Timed, Survival, Practice), Adult and primary dentition, Universal, Palmer, FDI numbering systems, Leaderboard for schools

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features | $3.99 | one-time |


## Frequently asked questions

### Is Passport To Future free?

Passport To Future is free to download, with no in-app purchases.

### Is Tooth Sleuth free?

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

### Do Passport To Future or Tooth Sleuth have ads?

Neither Passport To Future nor Tooth Sleuth shows ads.

### Which is updated more often, Passport To Future or Tooth Sleuth?

Passport To Future ships an update every 5 days, and Tooth Sleuth every 3 weeks. Most recently, Passport To Future was updated on October 1, 2026 and Tooth Sleuth on October 12, 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.*