# feiffer LMS vs GrainSense Flow

The clearest difference is iOS requirement: feiffer LMS at 12.2 against GrainSense Flow's 15.1. 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.

feiffer LMS ships an update every 6 weeks, GrainSense Flow every 2 months. The most recent releases landed on September 10, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | feiffer LMS | GrainSense Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 73 MB | 46 MB |
| Requires iOS | **12.2** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrea Feiffer](https://appshunter.io/developer/875043798) | [GrainSense Ltd](https://appshunter.io/developer/1401980110) |

## What reviewers say

### feiffer LMS

[App page](https://appshunter.io/ios/app/feiffer-lms/id1399110198)

**Features:** macOS Compatibility

**In-app purchases:** none


### GrainSense Flow

[App page](https://appshunter.io/ios/app/grainsense-flow/id6499427986)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is feiffer LMS free?

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

### Is GrainSense Flow free?

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

### Do feiffer LMS or GrainSense Flow have ads?

Neither feiffer LMS nor GrainSense Flow shows ads.

### Which is updated more often, feiffer LMS or GrainSense Flow?

feiffer LMS ships an update every 6 weeks, and GrainSense Flow every 2 months. Most recently, feiffer LMS was updated on September 10, 2026 and GrainSense Flow on September 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*