# SmartCalculation_rjfv2 vs Sky107

The clearest difference is update cadence: Sky107 at every 2 weeks against SmartCalculation_rjfv2's monthly. SmartCalculation_rjfv2's advantage is iOS requirement (8.0 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

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

SmartCalculation_rjfv2 ships an update monthly, Sky107 every 2 weeks. The most recent releases landed on September 23, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SmartCalculation_rjfv2 | Sky107 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sky107/id6759820636/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 36 MB | 69 MB |
| Requires iOS | **8.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [REMI FANG](https://appshunter.io/developer/1778870288) | [Aliaksandr Kharevich](https://appshunter.io/developer/1674263353) |

## What reviewers say

### SmartCalculation_rjfv2

[App page](https://appshunter.io/ios/app/smartcalculation-rjfv2/id6740205622)

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

**In-app purchases:** none


### Sky107

[App page](https://appshunter.io/ios/app/sky107/id6759820636)

This app provides a focused study tool for pilots preparing for the FAA Part 107 Remote Pilot Knowledge Test. It covers the official curriculum with structured lessons, flashcards, and practice exams to ensure comprehensive preparation.

**Highlights:** 13-chapter structured course, Flashcard deck with mastery tracking, 60-question practice exam, FAA reference links, Progress tracking, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is SmartCalculation_rjfv2 free?

SmartCalculation_rjfv2 is free to download, with no in-app purchases.

### Is Sky107 free?

Sky107 is free to download, with no in-app purchases.

### Do SmartCalculation_rjfv2 or Sky107 have ads?

Neither SmartCalculation_rjfv2 nor Sky107 shows ads.

### Which is updated more often, SmartCalculation_rjfv2 or Sky107?

SmartCalculation_rjfv2 ships an update monthly, and Sky107 every 2 weeks. Most recently, SmartCalculation_rjfv2 was updated on September 23, 2026 and Sky107 on October 7, 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.*