# SOTO (Student On vs Behavior Observer

The clearest difference is price: Behavior Observer at Free against SOTO (Student On's $9.99. SOTO (Student On's advantage is in-app purchases (none vs 2) and iOS requirement (6.0 vs 17.6). On update cadence, ads and device support there is nothing between them.

Behavior Observer is free to download; SOTO (Student On costs $9.99 up front. Behavior Observer sells 2 in-app purchases, starting at $49.99 per year. SOTO (Student On asks for nothing beyond the download.

SOTO (Student On ships an update every 6 weeks, Behavior Observer every 2 months. Both last shipped on October 6, 2026.

## The numbers

| Metric | SOTO (Student On | Behavior Observer |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/soto-student-on-task-observation/id428809608/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 21.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Paid | — |
| Size | 7 MB | 4 MB |
| Requires iOS | **6.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Jack Calo](https://appshunter.io/developer/428809611) | [Daniel Zaccaro](https://appshunter.io/developer/1895771100) |

## What reviewers say

### SOTO (Student On

[App page](https://appshunter.io/ios/app/soto-student-on-task-observation/id428809608)

This app simplifies student behavioral observation by replacing paper and pen with digital checkboxes. It automatically tracks timed intervals, categorizes on-task and off-task behaviors, and generates visual reports with percentage statistics and graphs.

**Highlights:** Digital checkbox data collection, Automatic timed intervals, On-task/Off-task categorization, Specific off-task behavior recording, Percentage statistics calculation, Graph and chart generation, Customizable observation settings

**Features:** macOS Compatibility

**In-app purchases:** none


### Behavior Observer

[App page](https://appshunter.io/ios/app/behavior-observer/id6789358581)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Behavior Observer Pro | $49.99 | per year |
| Behavior Observer Pro Lifetime | $149.00 | one-time |


## Frequently asked questions

### Is SOTO (Student On free?

SOTO (Student On costs $9.99, with no in-app purchases.

### Is Behavior Observer free?

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

### Do SOTO (Student On or Behavior Observer have ads?

Neither SOTO (Student On nor Behavior Observer shows ads.

### Which is updated more often, SOTO (Student On or Behavior Observer?

SOTO (Student On ships an update every 6 weeks, and Behavior Observer every 2 months. Most recently, SOTO (Student On was updated on October 6, 2026 and Behavior Observer on October 6, 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.*