# MEGA Subtraction 1 vs Session

The clearest difference is update cadence: Session at weekly against MEGA Subtraction 1's every 2 months. MEGA Subtraction 1's advantage is device support (3 vs 1) and iOS requirement (6.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. MEGA Subtraction 1 sells 10 one-off in-app purchases and Session sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

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

## The numbers

| Metric | MEGA Subtraction 1 | Session |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 42 MB | 11 MB |
| Requires iOS | **6.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stas Gurevich](https://appshunter.io/developer/570553157) | [Ivan Gavrilov](https://appshunter.io/developer/1876880901) |

## What reviewers say

### 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 |


### Session

[App page](https://appshunter.io/ios/app/session-100-hour-skill-method/id6759194130)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Skill Kit Pro — Monthly | $4.99 | per month |
| Skill Kit Pro — Quaterly | $9.99 | per 3 months |
| Skill Kit Pro — Yearly | $19.99 | per year |


## Frequently asked questions

### Is MEGA Subtraction 1 free?

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

### Is Session free?

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

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

Neither MEGA Subtraction 1 nor Session shows ads.

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

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