# What They See vs ChalkNote

The clearest difference is update cadence: What They See at fortnightly against ChalkNote's every 5 weeks. ChalkNote's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. What They See sells 10 one-off in-app purchases and ChalkNote sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

What They See ships an update fortnightly, ChalkNote every 5 weeks. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | What They See | ChalkNote |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (40 ratings)](https://appshunter.io/ios/app/what-they-see/id6755517347/reviews)** | — |
| Number of ratings | **40** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 85 MB | 31 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Special Glasses LLC](https://appshunter.io/developer/1854349802) | [Joshua Makes](https://appshunter.io/developer/6797973015) |

## What reviewers say

### What They See

[App page](https://appshunter.io/ios/app/what-they-see/id6755517347)

This app simulates various vision conditions and color blindness in real-time using your device's camera. Explore how different visual impairments and animal vision affect perception, with educational guides and sharing capabilities.

**Highlights:** Real-time vision condition simulation, Colorblindness simulation, Animal vision simulation, Dyslexia text transformation, In-depth educational guides, Photo and video capture with simulation, Sharing capabilities

**Features:** Family Sharing

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Astigmatism | $1.99 | one-time |
| Cataracts | $1.99 | one-time |
| Protanopia | $1.99 | one-time |
| Tritanopia | $1.99 | one-time |
| Baby Vision | $2.99 | one-time |
| All Color Blindness | $3.99 | one-time |
| All Dyslexia Simulations | $4.99 | one-time |
| All Vision Impairments | $12.99 | one-time |
| Unlock Everything | $14.99 | one-time |
| Unlock Everything | $24.99 | one-time |


### ChalkNote

[App page](https://appshunter.io/ios/app/chalknote-behaviour-log/id6799425101)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChalkNote Plus | $3.99 | per month |
| ChalkNote Plus | $22.99 | per year |


## Frequently asked questions

### Is What They See free?

What They See is free to download, with in-app purchases available.

### Is ChalkNote free?

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

### Do What They See or ChalkNote have ads?

Neither What They See nor ChalkNote shows ads.

### Which is updated more often, What They See or ChalkNote?

What They See ships an update fortnightly, and ChalkNote every 5 weeks. Most recently, What They See was updated on November 9, 2026 and ChalkNote on November 10, 2026.

---

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