# TeachMark AI vs LifeGap

The clearest difference is in-app purchases: LifeGap at none against TeachMark AI's 6. LifeGap also leads on update cadence (every 2 weeks vs every 13 months). TeachMark AI's advantage is ads (none vs shown) and iOS requirement (16.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. TeachMark AI sells 6 in-app purchases, starting at $4.99 per 7 days. LifeGap asks for nothing beyond the download.

TeachMark AI ships an update every 13 months, LifeGap every 2 weeks. The most recent releases landed on September 14, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | TeachMark AI | LifeGap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 2 weeks** |
| Size | 15 MB | 48 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Angel App Publishing Ltd.](https://appshunter.io/developer/412814814) | [LIFEGAP (PTY) LTD](https://appshunter.io/developer/1626464029) |

## What reviewers say

### TeachMark AI

[App page](https://appshunter.io/ios/app/teachmark-ai/id6744275145)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| Annual Subscription | $39.99 | per year |
| One Piece of Marking | $0.99 | one-time |
| Mark 5 Pieces of Work | $3.99 | one-time |
| Whole Class Mark | $9.99 | one-time |
| One Time Upgrade | $59.99 | one-time |


### LifeGap

[App page](https://appshunter.io/ios/app/lifegap/id6746760137)

**In-app purchases:** none


## Frequently asked questions

### Is TeachMark AI free?

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

### Is LifeGap free?

LifeGap is free to download, with no in-app purchases.

### Do TeachMark AI or LifeGap have ads?

LifeGap shows ads; TeachMark AI does not.

### Which is updated more often, TeachMark AI or LifeGap?

TeachMark AI ships an update every 13 months, and LifeGap every 2 weeks. Most recently, TeachMark AI was updated on September 14, 2026 and LifeGap on September 8, 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.*