# Classroom Timer Pro vs Otso

The clearest difference is review sentiment: Otso at 100% against Classroom Timer Pro's 43%. Otso also leads on update cadence (every 5 days vs every 5 months) and price ($0.99 vs $2.99). Classroom Timer Pro's advantage is iOS requirement (9.0 vs 18.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

Classroom Timer Pro costs $2.99 and Otso $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Classroom Timer Pro ships an update every 5 months, Otso every 5 days. The most recent releases landed on September 19, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Classroom Timer Pro | Otso |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | **[3.6 (9 ratings)](https://appshunter.io/ios/app/classroom-timer-pro/id594124231/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 42.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | Paid | Paid |
| Size | 107 MB | 2 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [EDTECH MONSTER LIMITED](https://appshunter.io/developer/686934052) | [SIMON HEUSCHKEL](https://appshunter.io/developer/1863285023) |

## What reviewers say

### Classroom Timer Pro

[App page](https://appshunter.io/ios/app/classroom-timer-pro/id594124231)

This educational tool helps teachers manage timed tasks for groups of children. It offers customizable themes, background countdowns, and engaging animations for task completion or time expiration. Users can pause, restart, and reset timers, with optional sound effects.

**Highlights:** 50+ alarm/background theme combinations, Background countdown functionality, Elapsed and remaining time display, Actual time display, "Well Done" screen with fanfare, Comic explosion or "Time's Up" animation, Pause, restart, and reset timer

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

**In-app purchases:** none


### Otso

[App page](https://appshunter.io/ios/app/otso-visual-timer/id6778631652)

This app provides a visual countdown timer that uses a shrinking colored wedge instead of numbers. It offers various aesthetic designs and tactile feedback, making time management intuitive for all ages. The app is designed for privacy with no accounts or data collection.

**Highlights:** Visual countdown wedge, Customizable faces and sounds, Dynamic Island and Lock Screen integration, No ads or subscriptions, Private by design, Tactile feedback and animations

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Classroom Timer Pro free?

Classroom Timer Pro costs $2.99, with no in-app purchases.

### Is Otso free?

Otso costs $0.99, with no in-app purchases.

### Do Classroom Timer Pro or Otso have ads?

Neither Classroom Timer Pro nor Otso shows ads.

### Which is updated more often, Classroom Timer Pro or Otso?

Classroom Timer Pro ships an update every 5 months, and Otso every 5 days. Most recently, Classroom Timer Pro was updated on September 19, 2026 and Otso on September 25, 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.*