# F Macroinvertebrates iPhone vs OutdoorLog

The clearest difference is iOS requirement: F Macroinvertebrates iPhone at 9.0 against OutdoorLog's 26.2. On price, update cadence, 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.

F Macroinvertebrates iPhone ships an update monthly, OutdoorLog every 2 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | F Macroinvertebrates iPhone | OutdoorLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 104 MB | 2 MB |
| Requires iOS | **9.0** | 26.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [OEECPA](https://appshunter.io/developer/913406122) | [Dylan Lister](https://appshunter.io/developer/1888706581) |

## What reviewers say

### F Macroinvertebrates iPhone

[App page](https://appshunter.io/ios/app/f-macroinvertebrates-iphone/id1391108416)

**Features:** macOS Compatibility

**In-app purchases:** none


### OutdoorLog

[App page](https://appshunter.io/ios/app/outdoorlog-instructor-log/id6761291899)

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

**In-app purchases:** none


## Frequently asked questions

### Is F Macroinvertebrates iPhone free?

F Macroinvertebrates iPhone is free to download, with no in-app purchases.

### Is OutdoorLog free?

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

### Do F Macroinvertebrates iPhone or OutdoorLog have ads?

Neither F Macroinvertebrates iPhone nor OutdoorLog shows ads.

### Which is updated more often, F Macroinvertebrates iPhone or OutdoorLog?

F Macroinvertebrates iPhone ships an update monthly, and OutdoorLog every 2 months. Most recently, F Macroinvertebrates iPhone was updated on November 2, 2026 and OutdoorLog on November 5, 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.*