# fieldbook OS vs 4get.

The clearest difference is update cadence: fieldbook OS at every 5 days against 4get.'s every 3 weeks. fieldbook OS also leads on device support (3 vs 1). 4get.'s advantage is iOS requirement (16.4 vs 26.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

fieldbook OS ships an update every 5 days, 4get. every 3 weeks. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | fieldbook OS | 4get. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/fieldbook-os/id6736926547/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 28 MB | 63 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Nishant Medicharla](https://appshunter.io/developer/1517381616) | [연우 정](https://appshunter.io/developer/6787064085) |

## What reviewers say

### fieldbook OS

[App page](https://appshunter.io/ios/app/fieldbook-os/id6736926547)

Organize and search all your media with AI-powered tagging. Integrates with creative tools and includes helpful mini-apps to spark inspiration and streamline your workflow from concept to creation.

**Highlights:** AI-powered media tagging, Folder-based organization, Searchable media archive, Integrations with creative tools, Creative mini-apps, Recommendation storage

**Features:** Vision Pro support

**In-app purchases:** none


### 4get.

[App page](https://appshunter.io/ios/app/4get-retro-focus-timer/id6787064083)

Transform your smartphone into a 2003-style green LCD phone for a set duration. Focus on the countdown and signal, and grow a forget-me-not flower in your field for each successful session. Lock distracting apps during your focus time.

**Highlights:** 2003-style LCD phone interface, Focus timer with countdown, Grow virtual forget-me-nots, App locking for distractions, Minimalist design, Offline functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is fieldbook OS free?

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

### Is 4get. free?

4get. is free to download, with no in-app purchases.

### Do fieldbook OS or 4get. have ads?

Neither fieldbook OS nor 4get. shows ads.

### Which is updated more often, fieldbook OS or 4get.?

fieldbook OS ships an update every 5 days, and 4get. every 3 weeks. Most recently, fieldbook OS was updated on September 10, 2026 and 4get. on September 21, 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.*