# AutoVitals SmartFlow vs KRAIN

AutoVitals SmartFlow and KRAIN both sit at 2.6 stars, but that hides the real split: 29% of KRAIN's written reviews are positive against 0% of AutoVitals SmartFlow's. KRAIN also leads on update cadence (every 2 weeks vs every 2 months) and device support (3 vs 1). AutoVitals SmartFlow's advantage is ratings volume (27 vs 7) and iOS requirement (11.0 vs 14.0). On price, rating, 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.

On the App Store both sit at effectively the same score — 2.6 for AutoVitals SmartFlow against 2.7 for KRAIN. Both are backed by a comparable volume of ratings — 27 and 7 respectively. Written reviews are what separate them: 0% of AutoVitals SmartFlow's written reviews are positive against 29% of KRAIN's.

AutoVitals SmartFlow ships an update every 2 months, KRAIN every 2 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | AutoVitals SmartFlow | KRAIN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (27 ratings)](https://appshunter.io/ios/app/autovitals-smartflow/id880138070/reviews) | **[2.7 (7 ratings)](https://appshunter.io/ios/app/krain/id1542242891/reviews)** |
| Number of ratings | **27** | 7 |
| Positive reviews | 0.0% of reviews | **28.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 25 MB | 42 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AutoVitals](https://appshunter.io/developer/357589939) | [K-Rain Manufacturing Corporation](https://appshunter.io/developer/1098744177) |

## What reviewers say

### AutoVitals SmartFlow

[App page](https://appshunter.io/ios/app/autovitals-smartflow/id880138070)

Streamline auto repair shop operations with digital inspections and a paperless workflow. Improve productivity, gain process visibility, and enhance customer communication. Drag-and-drop functionality allows for easy priority management on touchscreens.

**Highlights:** Digital inspections, Paperless back-shop, Workflow automation, Customer communication, Drag-and-drop priority management, Touchscreen support

**In-app purchases:** none


### KRAIN

[App page](https://appshunter.io/ios/app/krain/id1542242891)

Manage your irrigation system remotely with this app. It allows you to set up and control watering schedules, adjust runtimes, and monitor multiple controllers from your mobile device.

**Highlights:** Manage multiple controllers, Create watering schedules, Set Cycle & Soak, Control lighting schedules, Advanced Intelligence Mode, Adjust runtimes remotely

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AutoVitals SmartFlow free?

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

### Is KRAIN free?

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

### Which has better reviews, AutoVitals SmartFlow or KRAIN?

KRAIN is rated higher. AutoVitals SmartFlow averages 2.6 out of 5 from 27 ratings, while KRAIN averages 2.7 from 7 ratings.

### Do AutoVitals SmartFlow or KRAIN have ads?

Neither AutoVitals SmartFlow nor KRAIN shows ads.

### Which is updated more often, AutoVitals SmartFlow or KRAIN?

AutoVitals SmartFlow ships an update every 2 months, and KRAIN every 2 weeks. Most recently, AutoVitals SmartFlow was updated on November 1, 2026 and KRAIN on November 3, 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.*