# Tooth Sleuth vs OneScreen

The clearest difference is in-app purchases: OneScreen at none against Tooth Sleuth's 1. OneScreen also leads on iOS requirement (15.0 vs 18.0). Tooth Sleuth's advantage is ratings volume (20 vs 1). On price, rating, review sentiment and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Tooth Sleuth against 5.0 for OneScreen. That said, the two scores are not equally well evidenced: Tooth Sleuth has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Tooth Sleuth ships an update every 3 weeks, OneScreen every 2 weeks. The most recent releases landed on October 12, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Tooth Sleuth | OneScreen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (20 ratings)](https://appshunter.io/ios/app/tooth-sleuth/id6748571321/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/onescreen/id6754709745/reviews)** |
| Number of ratings | **20** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 14 MB | 248 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Andrew Margarit](https://appshunter.io/developer/1826362583) | [ACA Dental](https://appshunter.io/developer/1159400296) |

## What reviewers say

### 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 |


### OneScreen

[App page](https://appshunter.io/ios/app/onescreen/id6754709745)

Master dental anatomy with interactive 3D models and targeted practice modules. This app helps dental students and professionals deepen their understanding of tooth morphology and anatomy through data-driven insights and an intuitive interface. Learn effectively anywhere with offline access to core content.

**Highlights:** Interactive 3D dental anatomy models, Smart learning modules for practice, Progress tracking and performance insights, Offline-first design for anywhere learning, Student-focused, distraction-free interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tooth Sleuth free?

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

### Is OneScreen free?

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

### Which has better reviews, Tooth Sleuth or OneScreen?

OneScreen is rated higher. Tooth Sleuth averages 4.9 out of 5 from 20 ratings, while OneScreen averages 5.0 from 1 ratings.

### Do Tooth Sleuth or OneScreen have ads?

Neither Tooth Sleuth nor OneScreen shows ads.

### Which is updated more often, Tooth Sleuth or OneScreen?

Tooth Sleuth ships an update every 3 weeks, and OneScreen every 2 weeks. Most recently, Tooth Sleuth was updated on October 12, 2026 and OneScreen on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*