# ClassTimer vs MEGA Subtraction 1

The clearest difference is price: MEGA Subtraction 1 at Free against ClassTimer's $1.99. MEGA Subtraction 1 also leads on update cadence (every 2 months vs every 14 months) and iOS requirement (6.0 vs 12.0). ClassTimer's advantage is in-app purchases (none vs 10). On ads and device support there is nothing between them.

MEGA Subtraction 1 is free to download; ClassTimer costs $1.99 up front. MEGA Subtraction 1 sells 10 one-off in-app purchases. ClassTimer asks for nothing beyond the download.

ClassTimer ships an update every 14 months, MEGA Subtraction 1 every 2 months. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | ClassTimer | MEGA Subtraction 1 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/classtimer/id493088052/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 19 MB | 42 MB |
| Requires iOS | 12.0 | **6.0** |
| Devices | iPad, Mac, Apple TV | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Stas Gurevich](https://appshunter.io/developer/570553157) |

## What reviewers say

### ClassTimer

[App page](https://appshunter.io/ios/app/classtimer/id493088052)

This app helps students develop essential time management skills with visual timers and customizable alerts. It supports various display formats and sounds to aid understanding and productivity in educational settings.

**Highlights:** Visual time display, Bar graph indicator for remaining time, Selectable buzzer sounds, Hours/minutes or minutes/seconds display, Start, stop, pause, and restart functions, Sound on/off control

**In-app purchases:** none


### MEGA Subtraction 1

[App page](https://appshunter.io/ios/app/mega-subtraction-1-100-free/id898754237)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Settings | $0.99 | one-time |
| History | $0.99 | one-time |
| Collection 1 | $0.99 | one-time |
| Collection 2 | $0.99 | one-time |
| Collection 3 | $0.99 | one-time |
| Collection 4 | $0.99 | one-time |
| Collection 5 | $0.99 | one-time |
| Collection 6 | $0.99 | one-time |
| All collections | $3.99 | one-time |
| Mega Pack | $4.99 | one-time |


## Frequently asked questions

### Is ClassTimer free?

ClassTimer costs $1.99, with no in-app purchases.

### Is MEGA Subtraction 1 free?

MEGA Subtraction 1 is free to download, with in-app purchases available.

### Do ClassTimer or MEGA Subtraction 1 have ads?

Neither ClassTimer nor MEGA Subtraction 1 shows ads.

### Which is updated more often, ClassTimer or MEGA Subtraction 1?

ClassTimer ships an update every 14 months, and MEGA Subtraction 1 every 2 months. Most recently, ClassTimer was updated on October 16, 2026 and MEGA Subtraction 1 on October 18, 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.*