# All in One Formula vs Session

The clearest difference is update cadence: Session at weekly against All in One Formula's every 6 months. All in One Formula's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. All in One Formula sells 1 one-off in-app purchase 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.

All in One Formula ships an update every 6 months, Session weekly. The most recent releases landed on October 25, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | All in One Formula | Session |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Size | 90 MB | 11 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Raj Dev Barman](https://appshunter.io/developer/1832913213) | [Ivan Gavrilov](https://appshunter.io/developer/1876880901) |

## What reviewers say

### All in One Formula

[App page](https://appshunter.io/ios/app/all-in-one-formula-math-ai/id6749927877)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All-in-One Formula Pro | $24.99 | 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 All in One Formula free?

All in One Formula is free to download, with in-app purchases available.

### Is Session free?

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

### Do All in One Formula or Session have ads?

Neither All in One Formula nor Session shows ads.

### Which is updated more often, All in One Formula or Session?

All in One Formula ships an update every 6 months, and Session weekly. Most recently, All in One Formula was updated on October 25, 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.*